papercollection · 5. I1'yclu wish to change your altswcr', crasc the blackcnecl rnark that you havc Irtatle. I1'yclu wish to change your altswcr', crasc the blackcnecl rnark that

SULIT

KimiaKertas ISeptember2 0 0 9l ' /o jam

4511 i7

Nama Pelajar

f ingkatan

JABATAN PELAJARAN KELANTANDENGAN KERJASAN{A

PERSIDANGAN KEI}ANGSAAN PENGE'I'UA-PENGETUASEKOLAH MEN ENGAH MALAYSIA

CAWANGAN KELANTAN

PEPERIKSAANSIJIL PELAJARAN

PERCUBAANMALAYSIA 2OO9

KIMIAKERTAS I

Masa: Satu Jam l , in ta Belas Min i t

JANGAN BUKA KERTAS SOAT,AN INI SEHINGGA DIBBRITAHU

Arahan:

1. Kertas soalan ini adalah dalatl drvibiihasa

2. Setiap soalan nrenganclungi kedua-duabahasa Inggcris clatt trahasa Melavtt.

Bahagian atas dalam bahasa hrggcris dan diikuti di bar.vriltrtya olch bahaszr Mcla-ytt

3. Calon dikehendaki tnembaca nraklumat di iralanran 2

Keftas soalan ini rnengandungi 3l haliutlan bcrcetak.[ , ihat Sebelah

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sL[,lT ( 2 )INFORNIATION FOR CANDIDA'TES

I . This c luest ion papet ' consis ts

2. Ansr .vcr a l l c lucst ions.

3. Ansr .vcr cach c lucst iun by b lackcning thc cor t 'ect spacc- on t l tc answcr shcct .

4. Blackcn only one s l racc- for cach c l t tcst ion.

5. I1 'yc lu wish to change your a l tswcr ' , crasc the b lackcnecl rnark that you havc I r ta t le .

Thcn b lackerr lhc s l tace lbr the ncw i tnswer.

( r . Thc d iagranrs in t l rc c lucst iorrs p lor , ' ic icd arc l rot drau, t t t t t scalc t t r t lcss statcd.

7. You nray usc a nol t -progranrrr rablc sc icr t t i l ic ca lculator .

MAKLUNIA I ' UN ' I 'UK CALON

I. Kcr' ltr,s soqlutt iui trrangutrtluttgi 50 soulcrn.

2. Jtrtrob seiltuu ,soulurt

3. Juy'ub c.langurt ntutglt itttttt l ;dn rttdn[adtl t,cntg beltrl podu ket' ltt,s.f (rr(t l)(ttt.

4. Ilitctmkun sstu t'uengau .sohojct ltagi s'ctiup ,toulun.

5. St,kiron1,a ondo henrlqk rncnrrkarl;ttn jott'upan, padamkan landrt .t;an,q rclrtlt clibuul.

K c' t n t r tl i a rt h i tu n ka n .j ctrt' e l)( to n ),ctn g b o r t t.

6. Ilojoh .1,trn51 rncngirinti .soolun titluli diltrliis ntengilittl ,vkqltr kt:crttrli ditt.t,trlnkutt.

7 . ,4ntlu tlibenttrkun nenggtrttttkutt kulkrlutor' .sctintifik yung tidcrk bolelt diprogrctntliurt

Question I to Question 50 arc fbllowcd by four options A, B, C or D.

Choose thc best option for each clucstion and blackened the corresponding space on

the objective answer sheet.

Bagi Soalun I hingga Soalan 50, tiap-tiap soalan cliikuti oleh emptat pililtun.iuvt'trpan A, B, C

dan D. Pilih sotu jawupan yang terbaik bagi tiap-liap soulan dun hilan*nn ruungan vurtg

sepadan pada kertas jawapan objektd'anda

454t I I

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I Diagram I shows the atotnicRaiah I menunjukkan simbol

( 3 )

syrnbol of element Xatont bagi un.sttr X

454r t1

Diagram IRcjuh I

Which of the follor.ving rcprcsents l9?Antara berikut, apahah vang diu'akili oleh angka 19?A P|oton number

nombor protonB Nucleon number

nombor rutkleonC Nutnber of neutrons

bilangan neutronD Number of elcctrons

bilangctn elektron

Given thc formulac tbr alul-riniurn ion is All' and sulphate ion is SO+2- . Choose thc correct

chemical fbrnrula of alumminium sulphateDibari fbrmulu ion ultrminium iuluh Al3* clun ion sulful iuluh SOa'- . Pilih /itrmula kimiu yung

betul btrgi aluminium sullat.

A Al(SO4)rB Al2(SOa)rC Ah(SO+)zD AISO4

Which characteristic indicates that chromium is a transition element?Ciri tnttg ntanekah menunjukkan krontitrm ialah trnsur peralihqn'/

A It can fbrm a basic oxide.Ian1,e 6t1th ntembentuk oksido bes.

B It can conduct electricity.Ianya boleh mengalirkan arus elektrik

C It has a high melting point.Iunyq m.*runyai takat lebur yang tinggi

D It can form coloured solution.Ianya boleh membentuk larutan berwarna.

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SULIT ( 4 )

4 Diagrarn 2 shorvs the position of atom X in the Periodic Tablc.The eiectron arraltgement of atom X is 2.8.y.Rajoh 2 menuniukkan kedudukan aton X di dalam.Iaduul hcrkula.Su.sunan elcktron ltagi atom X ialah 2.8..y

Diagram 2Ruioh 2

What is the value of y')Apakah nilaiy

A IB 3C 5D 7

Neon gas does not react with other elements becauseGa.s neon tidak bertindak balas dengan unsur lain kerano

A exists as monoal.omic gaseswttjud,sebagai gas monoatom

B always combines with i tsel fsentiasa bergahung dengan diri sendiri

C has stable octet electron alrangementntentpun.yai susLtnqn elektron octet yang .stobil

D has stable duplet electron arrangetnenttremptrnyai susunan elektron duplet yang stubil

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SI IL IT (5 ) 4s4r t r

6. Tablc t sh6ws tfic inforrnation about thc elcctrical conductivity of substanccs P, Q arrd R.

Ja(hql I mentu.titrkkan maklumat tentqng kekonduksian elektrik bagi bahan P, Q dun R.

Substunce P a R

Does the sol id substance conductelectricitv?

X X

Does the moltett substauce sotrduct

e Iectricitv'?X

Table I

JQdual 1

vVhich statement is t ruc ?

[tcrnyntaan yong monukah hcnur '/

A Sol id P and mol ten P conta in f iee mobi le ions.

Pepc.iul P clun lchttrun P mcngunthmgi irtn-ion haba's bargcrak

B Solid Q atrd tnoltett Q contaitl atonls.

Pepeiul Q tlon lelturun Q mengunclungi utom-crlom'

C There arc no ions in solid R.

Di dulum pepeiol R tidak terdcr1,tttl itttr-itttt

D Mclltett R contains free mobile ions.

Lelttrran R ntengandungi ion-ion bebas bergercrk.

7 Which solLr t ion shows the l i ighest pH value?

Lcu'ttturt ntttnctkah nrentrniukkon niloi pH tertinggi /

A 0.5 mol t lm-r su lphr , r r ic ac id

0.5 mol clrn't trc' id sulJurik

B 0.5 mol clm-3 ethattoic acicl .

0.5 ntol cln{'t asicl etanoik.

( ' 0 .5 nro l dr t t - t ac l t teot ts l tn l t t roni l t

0.5 nrtt l , l trIJ ttmrtt,tnitr ukttt 'rttrs

D 0.5 mol dm-] socl ium hydroxidc solut io t t

0.5 mot clm-r lqrtittn nulrium hiclrok,siclct

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8 Substance X +Bahan X

( 6 )

Sulphuric acid + Salt Y + Water * Carborr dioxidcasid sulfuric Garam Y Air Kqrbon dioksido

4s41t l

l 0

Referring to the equation abovc, what could substance X bc?Menjuk persamaan diatos , apakah kemungkinan bahan X'/

A Coppe(l l ) oxideKuprum(ll) oksida

B Magnesium metalLogam magnesiunt

C Zinc carbonateZink kctrbonat

D Sodium hydroxideNtttrittm hidroksidcr

Which of the fbllowing is a colourecl salt'/Antora herikut yang manakahsltatu garom berworuna'/

A Iron( l l ) sulphateFennt(ll) sulfcrt

B Silvcr nitrateArgenlum nitrut

C Lead(l l ) ni t ratePlumbum(ll) nitrat

D Calciunr carbonateKqlsium karbonet

Thc cquation in Diagraur 3 rcprcscnts thc rcaction in thc industrial prcparation of atrttrtollia.Persamaan di dalatn Rajah 3 mev,ukili tindctk bulas pcnghasilun omntonicr dalarn indu:;tt'i.

Catalyst MN2 + 3 Hz ---------------- 2NHr

450"C/ 60 atrn

Diagram 3Rcjah 3

What is catalyst M?Apakah ntangkin M?

^ Irottr erumNickel

b Nikel

c Copper(I I ) oxideKuprum(ll) oksida

D Manganese(lV) oxidcMangan(lV) 0ksida

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s t rL IT (1 ) 4s1 t t r

I I Which of thc fb l lor , r ' ing is a propcf ty of ceramic objects '?

Antqro ltet'ilutt .l"ctttg tttturqktth si/at bcthtrn serqnrik'?

A Good hcat cotrductorsPcnguiir ltultct -t'ttng ltaik

R Withstarrc l hcat bct terSangttt tulton htthrr

C Goocl e lect r ica l cor tdt rc torsPe n gu I i r e I lie' ltt r i li .t'tr n g b ct i k

D Does ttot I i, i thstartcl ccltt.t l ' l tcssit-rt. lh t t t'tt tt g I a ltct tt ttttt tt tlttt ltttt

12 Thc lb l lowing statcnlents arc lc la tec l to the col l is io t t thcory of a react io t ' t

. Parn),trt4(ttt-pL,rLt.t,(tt(rurr ltariktrl ttdulah berkuilsn dcngun teori perlnnflgQrln 'strQltr t induk

htr ltt.s.

\Vhich o1 ' thc lb l lou, ing conrbinat ion is t rLre about thc ef fect of the concetr t rat io t ' r t ' r t l t l tc

rcactant par t ic les ' )

.,1rtltt;tr kornbinttsi heriktrt1,cutg nttrtrokuh bcttcrr tcnlttng kasutt ltcpekutun lte crltrs

:Lu'(tlt-:drdh bultun ti trduk bcrIu's

I The lota l surhcc arca of ' the re i rc tar l t par t ic lcs i t lc rcascs

Jtrmluh ltrtt:; ;tenntrkeon zoreh-znt'qh bqhan tindoli bultrs bertctmboh

I I Thc k i r rc t ic c t tcrg! ' o f thc rcactant par t ic lcs i t tc lcascs

Tt'rttrgct kinctik zut'uh-zuroh buhun Iincluli ltuIu't barlunthah

I I I The ntr rnber o1 ' the reactunt par t ic les per one uni t o f vo lumc i t tcrsases

Bilttrtgctu :trrolt-:ctrttlt buharr tindak balus Jtcr .sulrt unil i.sipadu bct'tcttnbuh

lV The l icc luency of the col l is ion between t l re rcactat r t par t ic les i t rcreases

I-'rclrrtc,nsi pcrlrrttggoran etttera zerah-zut'olt buhart lindok bulqs bertttntbult

A I ar tc l l l on l l ,I dutr ll .sultcr

U I I anc l l l l on l yll dnr lll sohuio

C I at rc l IV ot t lyI dun lY sohclitt

D l l l a n d I V o n l yIll dutt lY strhctf a

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s t rL rT (8 ) 454Url3 Which of thc fb l lowing is not a charactcr is t ic of a cata lyst '?

Antat'ct .\,ung berikut, .y,crttg ntctnakqh bukan c,iri mangkin'/

A A cata lyst is s1 ' rcc i f ic in i ts rcact iorrMangkin utlaluh klttrsu,y dtrlunt tin(lLrk bttlasnyu

B A catalyst inflauences the qr"rarrtity of prodr.rct of rcactionMan,gkin ntentpengdruhi huntiti ho,gil tinclak bulq:;

C Tlte chcntical propcrly clf a catalyst rcrnains r-rnchangccl at thc cncl o1'thc reactiouSiltrt kimiu nrongkin tetup ticlok bertrbolt di oltltir tindttk bulus

D Only a l i t t le anrount of a cata lyst is nccclcc l to in f luencc the ratc of rcact ion[{anvcr .sedikit ttrttnckitt diltarlukurr tnttttk tnctntrtengtrt'trhi kudur titrcluk bulcr

l1 E,stcrs arc uscd as fbocl f lavorrrinqs.Which of thc lo l lowing is a propcf ty of an cstcr ' /l:,,t I t' t' d i gt lt u li u u .s c b u,qt r i 1t c r i.s cr I u d l( d I t u'/t.11 t t I t.t r tt I t e r i k tt l, .t, o n { nt u tt a k a I t .s i f h t e s t er "/

A SolLrb lc in rvatc lLcu'trl drrlont utr

l l Lor .v boi l ing pointTokut didilt rcndult

C Molc c lcnsc tharr rvatcr-Lchi h ltuttltttt lut ' i l tttt lu trir

D Can concluct e lect r ic i ty[] o I eh mt,ngkodu ks i ktut rr t'rr,t e I e lit ri k

1,5 Thc fb l lo lv i r rg chcnr ica l cc l rur{ ior t sh<lws t l rc prcparat ion of c tharro l in thc laboratory.Persrttrtottn kiniu bat'iktrl ntentttt jtrkkun l)an.t,(.(.li(tttrr clunttl t/i tlultrtn nruktnul.

ycast( ' , , [ ] r - .O r , - - -+ 2 ( ' : l l so l l | 2 (O .

What is thc r ranrc- o l - thc pr<tr :css sh()wn by thc a l ro 'u,c ccprnt ion ' /,,lpalrolr n(tntd l)t'o.\L'.\.t'un{ tlilttnf ulilrttn tli uttt,sl

A Ox ida t i onPengok.t itluttn

B Dehydrat ionPe'nclt'h idralq rr

C Fe r - rnerr tat iorrPenupoicrtt

D Hydrogcnatir-rnPenglt iclrogenutt

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SULIT (e)l6 The structural formulae of two molecules P and Q are as follows.

Formula struktur bagi molekul P dan Q adalah seperti beriktrt

H H H H Hl t l l l

H - C - C _ H H - C - C - C - Ht l t l lH O H H H O H

Which statement is t rue of both molecules P and Q'7Pern.vataan yang manakah benar bagi kedua - dua molekul P dan Q?

A They have different functional groupsKedua - duan.ya mentpunyai kumpulan be(imgsi y'ang berlainan

B Al l their physical propert ies are si t r i larSentua siJat Jiziknya sama

C All the ir chemical properties are diffcrentSemuo .sifat kimianya berbezct

D Tl-rey can be represented by the same general fbnnulaKedua - duanya boleh diw'akili oleh sattt./brmula am vang sama

11 The lbl lowing is the half equat ion ol 'a react ion.Berikut edctlah setengah persdnl(lut1 bctgi sctttt tindak balas.

Cl, + 2c -_-+ 2CI-

\\ 'hat is nrcaut by rcduction reaction based on thc cquation'/.lpctkolt .vung dimak.tudken dengan tindak balas penurunan perdasarkan persamaan ittil

A Electrons are received by cii lolineElektron diterime oleh klorin

B E,lectrons are donated by chlorineElektron diderma oleh klorin

C Electrons are received by chloride ionsElektron diterima oleh ion kloridct

D Electrons are donatcd by chloride ionsElektron diderma oleh ion kloridct

a

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s f l L IT (10 ) 4s4 r t l

l8 Which substance is an oxidising agent'?Bahen rnenctkah ))ang merttpakan agen pengoksidaan'!

A ZincZink

ts Sulphur d iox ic ie gasGtts sul.f Ltr dioksida

C Potassium bron' r ide solut ionLq ru lttn ku I iu m lt ro m idu

D Acid i f led potzrss iutn c l ic l r rornate(VI) so lut ion

Lcr nr tu n ku I i u nt d i k ro ntut(Y I \ lt e ros i d

l9 Which of thc fo l lowing chcrn ical cc luat ions rcprcscr t ts t l ic rcact ion of prcparat ior t o f soap' l

Diunlttru pcr.\unLtotl kitniu bcrikut, ),unK rnctnukuh tncv,ukili tirttluk ltulu,s ltctt.l'ecliuurt.sulttrtr'.'

A Ethanoic acid + ethanol -+ cthyl cthanoalc + watcr

A.sitJ etunoik+ ctonol ) cti l clunrtut * trirB Oi l + sodium hydroxidc + g lycero l+ sodium palut i ta tc

Minvak -t natrium hidrokside ) gli.serol * ualriurtr pulmitat

C Glucose * yeast -+ etltanol * carbon dioxideGlukosct + vis ) etunol * kurbon dioksicla

D Alky lbcrrzcrre sulphonic ac id + sodiurn hydroxidc -> sodiunr a lk l ' lbcr tzct rc sulphonatc *

waterA.sid alkitbenzentt sulfbnik * natriutn hidrok.sidn ) nqtrittm ulltilhen:cttcr sul.fbnul t uir

20 Why dctelgcnts morc cfl 'cctivc than soaps?Kenupakah detergen lebih berkesqn berbqnding clengan sabun'/

A Detergcnts arc biodcgradablc whcrcas soaps al'c l. loll biodcgradblc.

D e te rge n b o l e h t e r b i od e gra d a s i nt cu t cr ko l e s q bu n t i cl o k t e r b i ocl e gru d o s i.

B Detergents recluce the surflce tcnsion of rvatcr, whereas soaps do ntlt.

Detergen rnerenclqhkctn ketegcrrtgun permuktrttn air munqkulcr soltun titluk tttat'entlthkutt

kelcgungun permukuun uir.

C Detergents clo not fornr scut't'r in hard water, whereas soaps clo.

Detergen ticlak mentbentuk ke:kot clitlqlqm air liat tnanctliula sultun trterrrhenlrtlt l<r'kut.

D Detcrgents arc soluble in grcasc, whercas soaps arc insolublc itt grcasc.

Detergen larut dalem gri,s ntartttkale sabun /idqk larut dalam gt'is.

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SULIT ( 1 I )

21 Diagram 4 shows thc clcctron arrangement of atom Z.Rcyah 4 menuniukkalt sttsunan elektron bagi atom Z'

Diagram 4Ru.juh 4

IJorv many protons are there in the nucleus of atom Z'l

Ileroltakah bilangun proton .1'ang terdapat dalam ntrkletrs utom Z?

A 2B 3C 5D 7

22 Which nredicine can relieve a hcaclache?Aptrkuh ubul yang bolch melegakan sukil kepulu?

A Aspirin.4.spirin

B CortisotrKorlison

C Barbitr-rratcllurbilurul

D StreptornycinStrcptomisin

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SULIT ( 12 )

23 Diagram 5 shows a part of sct up apparatus to dctcnninc thc cmpirical fornrula of mctaloxide.Rajah 5 menunjtrkkon sebahctgictn duri reulas untuk mengenctlpasti lbrntulu empiriks bugioksida loqant.

Diagranr 5lla.ioh 5

Which o1'the rnctal oxicle catrnot bc usccl by this methocl'?Oksitla logom vung munoliah tiduk boleh clitentukon menggttttqkan kuuluh ini.'/

A Zinc oxideZink oksicltt

B Lcad( l l ) ox idcPlumbunt(ll) oksidct

( l Copper( l l ) oxideKuprum(ll) ctk.sicla

D l ron( l l l ) ox idcFerunt(ll) r.tksidtt

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ST]LIT

24 Diagram 6 showsY .

( 13 ) 4s4rlr

the electron arrangement of a compound formed betweetr atom X and atorn

susunan elektron bagi ,sehatian yqng terbentuk di anttrrct atom x danRa/ah 6 menuniukkanqtomY

Diagram 6Raiah 6

Which of the following statements is true about this compound?

Yang manc*ah cli antara pernyatacur berikut benar tentang sebatian ini

A It is an ionic compound.Ia merupakan sebatian ion

B The compound conducts electricity.Sebatian ini boleh mengkonduksikon ants elektrik

C The compound has high melting point.Sebatian ini mempunyai tukat lebur yang tinggi

D The compound is formed by the sharing of electrons.Sebqtian terbentttk melalui perkongsian elektron

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su l rT (14) 4s4U125 Diagram 7 shows the sct up of the apparatus tbr the elcctrolysis of molten lcad(ll) oxiclc.

Raiah 7 menunjukkan susLtnan radas bagi elektrolisis leLturon plumbum(ll) oksida.

Diagram TRajah 7

What are the products fonncd at the anodc and thc cathodc?Apakuh hasil.tang te:rhentttk pudo anod clun ltaknl?

AnodeAnod

CathodeKatod

A LeadPlumbunr

OxygenOksit!en

B OxygenOksicen

LeadPl t rmbum

C HydrogenI Iidrogen

OxygenOksicen

D OxygenOksiccn

HydrogenHidrogen

26. Copper (ll) sulphate solution is electrolysed using copper electrodes. What can bcobserved at the anode and cathode after 30 minutes'/Larutan kuprum(ll) sulfat dielektrolisiskan menggunakon elektrod larpntm. Apukuh yuttgdiperhatikan pada anod dan katod selepas 30 rninit'?

Anode Clathodc

A Copper plate becomes thinnerPlat kuprum meniadi niois

Copper plate becomes thickerPlat kuprum meniadi tebal

B Copper plate becomes thinnerPlat kuprum meniadi nipis

Gas bubbles are releaseclGelembune-selembuns sas terbebas

C Copper plate becomes thickcrPlat kuprum meniadi tebal

Coppel platc bccomcs thinncr I

PIat kuprurn rneniadi n ip isD Gas bubbles are released

Gelembung-gelembuns sas terbcbasCoppcr plate becomes thickerPlat kurrrurn rncniadi tebal

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st r r , r r (15) 4s4r t1

21 . Tablc 2 slrou,s tlre obscrvarion of e lcctrolysis of a sttbstance using carbon clcctlode '

Jctclttctl Z ntentutjukkcut petrtet'lratictn bctgi elcktrolisis sttctttr bcthttn menggunctkan elektrod

kurbctn.

ElcctlodcElclitrcd

Observlrt iotlI'enrerhat ic.rn

@G crs b c rvt, a r n a ktt n itt g k e h i j ttt t cr tt t c r h c b ctt

AnodeAnocl

ClatlrodeKotocl

A color less gas which burns rv i th a 'pop' sound ts re leaset l

G tt s y a n g r i i a k b e rw a r n a tl a n t 9I!!!t,:49!8!!!l!f1 )'iI9!19!'lf9!!!

Tablc 2Jadual 2

The elcctrolyte nraYbeE I ekn'o I i t it runtt ngki n

Di lutc hydrochlor ic acidA lsit.lhiiroktctrihcuir

- Conccntrated potassium chloride solutiorl.B Lartrtan kctlittm kloritla pekut

Copper ( l l ) chlor ide solut ion.L Lurulon kupntm (ll) kloritla

n Concentrated magnesium brtlmicle solutiotlu

Lut'tttttrt ntagnasittttt bt'otrt idc 1x'kttl.

28 Which o l ' the fo l lowing statetnent cgrrect ly c lescr ibes a st rong a lkal i ' /

Antttro J)et'n))olaan berihft, t'ang nranakah betul tentang olkali kual /

, l las a low pH valueI

Nilui pLI 1,a11g rcndult

, , l o t t i s cs co r t rp l c l c l y i t t r va t c t '" lllcttgi,,rt clettgrttr lt'trgkup tlalam uir

, r , Has a l r igh conccntrat io t l o f hydrc lx ide iorrsI I I

Iletttltutt.t'rti kepekutan ion hitlroksida 1'ong tinggi

Exist as ruolcclt lcs in watcrtV lltjtttlsebugui molakul daluttt uir

A I a n d l lI tlqn ll

B I a n d l VI dan lV

C I I and I I Ill dan lll

D I I I and IVIl l r/ari lV

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SULIT

29 Diagrarn 8 shows a nrethoclRaiuh 8 nenunjukkon suatularutan X dan lonrtqn Y.

( 16 )

<lipreparing insolublc salt byliaeduh pcnycrlion garam tak

454U1

rnixil lg solution X ancl solulion Y.lerl a nt t ka u ntc l a l tr i (utnptn'dn

SolLrtion XLanrlan X

Solut ion YLorutctn I'

-....r)

Sa l tGurant

What is the type ol'the reaction shoun in I)iaglarn tl.Apakuh jcnis tincluk bulus ditunltrkkun clalum Rujuh tl

A Neutra l isat iorr react ionTi n<lu k bu la.r pc nett lru I a n

B Subst i tu t iuorr rcucl ion7'indak balus ltcnukcrr gunliutt

C PrecipitationreactionTi ndo k ba I us pemenda ku n

D Addition reactiotlTindak balas penunt buhun

Mix i r rg two solut io l tC) ampuru n tttru I u tu I u tt

F i l tcr and r insc'l urus dun bilus

Diagram flRujalt 8

Salt cr-ystals

DryKcrirtgkun

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SULIT

30 Diagram 9 shows the stages I, II,of sulphuric acid.Rajah 9 menunjukkan peringkatProses Sentuh.

( 17 ) 454111

stagcs I and IV?digunakan pacla peringkut I tlan pcringkat lY'1

III and TV in the Contact Process during the prcparation

I, l l , III dan lY bagipenvcdiuan usitl sulJilr ik melului

S l-----' SO: -l!--+ SOr III , HzS:O; IV, H:SOq

Diagram 9Rajah 9

Which of the fol lowing chemicals is uscd atAntoro bahan kimiq berikut. vans manakahNI IQ

IVA o: HrOB Or SO,C HzO Ot

D HrO SO,

Diagram l0 shows the structural fbrrnula of a carbon colnpound.Rajoh l0 menunjukkanJbrrnula struklur bctgi suatu sebaliort korbon.

H H O H Ht t l t r l

H - C - C - - C - O - C C - F It r t lH H F I [ {

Diagram l0Rajtth l0

The compound is produced by the reaction betweenSebeilian ini terhasil daripada tindak balas antaro

A ethanol and propanoic acidetanol dengan asiel propanoik

B ethanol and butanoic acidetanol dengan asid butanoik

C propanol and ethanoic acidpropanol dengan asid etunoik

D butanol and ethanoic acidbutanol dengan asid etanoik

3 l

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SI,ILIT

Volunre CO3/curlIsipatlu CO:/cur]

Volurnc CO2/cntLsitrtcrclu COz/cm'r

Voltule COl/cmlIsi lxrt lu COz/crnr

( 18 )

Tirne/rninh'lusolmin

T i rne /nr inMu,rulrnin

Timc/nr inMasuht'tir'l

Tin.re/rninI4usulmin

454U1

Lihat SebelahSULIT

32. The equat ion bc lorv rcpfcscnts thc rcact iorr bct rvccn calc iurr r carbonatc and hycl rochlor icacid.Par.sttnrrtcrtt di lturt,trh ntcv'rtlrili tintloli holas onlut'tr kal.sitrn korhonul tlattcdn usiclhiclroklorik.

CaCOr(s) + 2 i lCl (aq) - - - - - -> CaCl : (aq) + t l ro( l ) + CO:(g)

Which of the lb l lorv ing graphs shows the chl rnges of vo lume o1'carbon d iox ide agai t rs tthc t inrc of rcact ion ' lAnturu gra.f'berikrt, t:(lttg monakult hetttl bugi ntenurjukkon perubohuu is'i1ttrcltr gcts'lrut'bon clioksidct te'rltaclap tnqsq tittclqk bolus'l

Volume COulcm3lsipachrCOzlcmr

C

D

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s U r - I T ( 1 9 ) 4 s 4 1 t 1

33 The lb l lorv ing ec lur t ior rs represent the d isplaccrnetr t rcact io t rs betu 'est r r l re ta ls P. Q r rnc l I { .

Persomaen hsriktrt mev,akili tintluk holas penl'e.\(l'ett Qtttut'Q logunt P, Q rrrrl It.

R e a c t i o u l : P + Q t ' P 2 ' + aTincluk bllqs I

Reac t ron2 : R + P2* - ) I l 2 ' - P

Tinduk bqlas 2

Which of the fbllou'itrg statclt-tctlts is tfuc about thc rcaction'/

.4tttttr.u berikut pernl)dte(tn 1,utrg rrtcutukult berrur tetttong litululi bulo's iltil

A P is urore electrcltregative than QP lehih eIcktrottegatil claripcrclu ()

B P and It are oxiclising agentsP dun R nrertrltokan ogen pengoksiclucttt

C Thc c lcsccudiug orc ler of ntc ta ls ' rcact iv i ty is R' Q' P

Str.strnon ntentu'un kc'reuktifan logum lrrlrrll R' Q, P

D Pr ' and Qr ' are reducing agents lvh i le Rr ' is ox id is ing^ i tgcr t t

P:- tlun Q2- ntcnrpukdn ogcn permruilon monukula R" nrcrtqrukutt (tgen pcngok'siduun

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su rT (20) 1s4ur

34 Diagrarn l1 shor.vs thc apparatus arrangcl'ncnt that is uscd to study thc transl-cr of clcctronsat a distance.Rujuh 1l nrenunjtrkken .tLtsunett rudus .t;utts digunukun untrtk rnengkuii perttinduhttnelelitntn ytadu suttr.jurak.

( 'arbort rod XIlotl kurhttn X

l ron ( l l ) su lp l ra tc so lu t io r tLu rtr to n l i ,ru r rr ( | I ) ,s tr I lh t

( ' rrbon rod Yllod ltur hotr \t

, l Ac i d i l i cd po tass i t t t t t' t . i i t h n , r t l r t e ( \ I ) s ( l l t r t i o r r- {j

l d t l t t t : t t k t t l i t r t t t J iA t t t r r t t t t \ \ ' l l

Di lLr te ' sLr lphur ic acic l

Asil .suI/ttrilt cttir

Diag ra rn l lIkluh | |

What colours can bc otrscl'\,cd in tlre solutious at carbon rod X artc' l cartlorr rttcl Y att l rc cnd of thc cxpcl i rncnt ' lApaltult wornu.y(tns tloput diperltolilidti dulant lorrrlutt-lurrrlort di rocl kurbon X dun

rod karl>on Y pctclu akhir ekspat'irnan itu.

Roc lXA Yc l low

KuningU Ycl lorv

Kunin54(l Crccn

LIilouD Grecn

I I ij cttr

Itocl YC'cllourlcssTiduk harwurnoGrccnI{ i j cttrOlangcPet'angPurplcUngu



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SULIT (2 t )

35 The following equation shows the reactiou between Ag* and Cl- ions.

Berikut edalah persatnaan bagi tindakbale.s anture ion Ag- dan ion Cl- .

A g * + C l - - - + A g C l A H : - 6 5 k J r n o l - r

Which of the tbllowing is tme about the above equation ?Antara berikut yang manakah benar tentang persamaan clictttts

'?

A Endothermic react ion occursTi ndakb ql. ttus e ndo t e rmik b er I uku

B Heat is released to the surroundingsHaba dibebaskan ke persekitaran

C The ternperature of the product decreasesSuhu hasil tindakbelas berhrang

D 65 k.l of heat absorbed when I mole of silver chloride is fornred .65 kJ haba di.serap apahila I mol argentum klorida terbentuk.

36 9.75 gof element X reacted with 63.5 g of elernent Y to form a compound with the

fornula XY2.What is the relative atomic mass of elenlent X?.

[Given that the relat ive atomic mass of Y=127]9.25 g trnstrr X bcrtindak bttlas dengun 63.5 g ut'tsur Y unluk mcmbcnluk salu 'tcbuliunyeng memptrnyai .fbrrrula XY:.Beropakah jisim qtom relatiJ unsur X?

fDiberi .jisint utom relatd Y: l2n^ a a

f\ :J

8 3 9

c40D 8 8

454t t l


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sULrT (22) 4s4v137 Thc fbl lorving ccluat ion shows thc dccornposit ion lcact ion of lead(l l ) ni t rate when hcated at

room terlpcratlrre and pressure.Pcrscrrtttrttt'r ltcriliut nrcnunjukkttn tintlult ltulas pctrgut'uinu plurnbum(ll) ttitrul ttpabilaclipono.skun poclo stt/rtr dcrn tekurton bilik.

2 Pb(NOr)z ---------------) 2PbO + 4 NOz a Oz

Which of thc fol lorving is t luc rvhcn 0.1 rnol of lcad(l l ) ni t rate is dccorrposcd' i

IRe la t i ve a to rn ic mass : N:14 , O: l6 ,Pb=207 and I mo l gas occup ies the vo lu tne o f 2 ,1dm' ' a troonr teurperature and prcssure]Anluro.i'ttrt{ berikut, t,ttng rtranokctlt benor opctbila I ntol plumbum(ll) nitrut tertrrai'?

lJ is imutor t t rc lu l i / : lV :14 , O: l6 ,Pb '207c lu t r lmo l gasmeneput i i s ipa t lusebcrn t ,uk24, ln /puda.suhu dan tekurtun bilik.l

A 44.6 g of lcad(l l )oxidc is fbrnrcd.44.6 g plunrbun(ll) oksiclu tcrhatrtuk.

B 4800 crn'r of ni t rogen cl ioxicle is given off .4800 cnt-' gtt,s nitrogen clbksidu terhchus

C 2.4 dn3 of oxygcn gases is given otf.2.4 drrt gos ok.sigcn terbebqs.

D 4 .16 g o f lead( l l )ox ide is fb rnred .4.46 g trtl uut btutt ( I I ) o ks i du I erbentr r k.

38 0.65 g of z iuc powder rcacts with excess hydrochlor ic acid to procluce hydrogen gas.0.65 g serbuk zink bcrtincluk ltulus dcngun u.s'id hidrcklorik ltarlebilton unltrk ncnghusilkungcrs hidrogert.Which of thc fol lorving is t luc about thc rcact ion?Pemyataan rnanakah benar tentang t indak balas' /[RAM: I{- l .Zn-65, Cl--35.5 ancl I mol of gas occupies 24 dnrr at roorn ternperature andprcssurc]

I Zn + 2H' -----------> Zn2' _ + H2I l Volurne of gas released is 120 cmjl l l Mass of the sal t lbrrned is 1.36 glV This is redox reirct i rrrr

A I and I l on ly

B I ancl I I I only

C l , l l l anc l lV on ly

D I I , I I I and lV only

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qILLlr ( 23 )39 what can be deduced firnr the synrbol ; l ,a.t ' l

Apakah )'cmg daltat clisimpttlkctn cluri svthol :,1. Al'?

I Tltc clcctron arraltgcll lcnt of ir luulit l i t-tt l . l atoll l is 2.u.3

Susunctn eleklron bagi utom alttnritr itrnt itr lalr ).8.3.

I I A luminiLru atom has l3 protons t tnd27 l lcL l t rons.

Atom trluntitt i tun mempttrnt'ai I 3 pt'olon tlart 27 nctttt 'ott.

I I I A lunt in ium atot l has a proton t r l t t t tber of 27 and l4 net t t rons.

Alotrr ctluntitt iuttt ttrenttrttrtr.t 'ui rtottrbot' proton 2Ttlttn I I rtatrlt 'Lttr.

lV The tota l n t t t lber o1-prot t in at rd t leutrot . t t l l 'a lumiui t r r l a tom is 27 '

Jtmluh hilangan prolon don neutron ttlrtm altrntirtittm ialoh 27'

A l ancl I I iB I I and lVC I I and l l lD I a n d l V

40 Diagranr [2 sholvs tltc clectron arrl lnsemcllt of ion T'

Ruiuh l2 mentrnitrkkdn ,rtt.\ttttutl elckttttn lxtgi iotr T

4511 I I

Lihat SebelahSULTT

Where is elenrentDimunakth un.sur

D iagram l2Rcloh 12

Iplaced in the Periodic Tablc ' /T tlilenrputkan di dttlum Juchul Berkrlu'l

GroupKuntpulan

Per iodKula

I I 2TJ l 8 )

C 2 1 8D I t 7

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SULIT ( 24 )

4l Diagram l3 shows the formation of sodiutn ion.Rajah 13 ntenunjukkan pembentttkan ion natrium.

--).

Diagram l3Raiah 13

Which ol the fol lowiug statements are true?K e n.v a t ct tr rt b c r i k.r t y r.t n g m e n e k o h b c n tt r ?

cl

I1

I I I

I V

A

Sodium atom has an unstablc elcctron arrangcment.Aktm nulritrm nlempun.vui su.sunan elcktron yung titluk stubilSodium ion has an octet electron arrangement as in neon atonl.Ion natr iunr mempunyai susunan clcktron oktct sc'pcrt i gas ncon.Sodium atom donates an electron to fbrm a positive charge ion.Atom nutrium mendermq sttttr elektron rrntttk mentbentuk ion hert'as ltositi/Sodium atom reacts with non-metals aton-rs to tbrrn ionic compounds.Alom nutritrm bertinduk hula,s dengun uton bukun logunt mcmbcntuk :;ebutiun ion

I and III onlyI dqn IILsuhulcrII and III onlyIl dan lll ,sahu jcrI , I I I and lV on lyI,llI dun IY scthu jctI , I I , I I I and lV on lyI, II, Il l dun IY scrhuict

454ur


D



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su l , IT (2s) 4s11t r

42 Table 3 shows the rcsult of an cxperinrcnt tbr thrce simplc vol taic ccl ls.Jadual 3 menunjukkan keputttsctn suQtu eksperimen bagi tiga sel ringkcrs.

Posit ivc terminal Nesat ive tenninal Voltase (V

w X 0.3Y X 0.8X Z 1 . 9

Table 3Jadual 3

Thc arrangcnrcnt of thc nretals in thc clcctrochcrnical scrics in dcsccnding ordct'of

clcctroposit iv i ty isSrr.strnctn logunt-logom mengikut lieelelttropositifon dalam.siri eleklrckimicr ntcngilul

urutqn menurLtn qdalah

A W , Z , X , YB Y , W , X . ZC Y , W , Z , XD Z , X , W . Y

43 Table 4 shows inlbrnrat ion about three sirnplc vt l l ta ic cel l .Jaduetl 4 menuniukkan maklumctt tentang tiga sel ringkas.

Vol ta ic cel l Electrodes used Voltage (V)

P Iron artd Zinc 0.2o Zinc and rnasucsiuttt 1 . 6R Copper and magnesium 2 .6

Table 4

.luduql4

What is the poterrtial cl if l-elence of the voltaic cell which cotrsists of copper atrcl iron

electrodes?Apukah niltri t,oltun ltugi sel yung mengandungi elelitrocl furprum clunJ'erunt

'?

A 0 .4B 0 .6c 0 .8D 2 .4

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ST]LI'T ( 26 )

44 The equat ion shows the react ion bctrveen sulp l rur ic ac id arrd potassi t t t l t hydlox idc.

Persqntaan merumjukkan tindakbelas di antqrct crsicl strllirril; dutt kalirrttt lticlroksidq.

H:SO4 + 2KOH ------+ K2SO+ + 2H:O

What is t l rc vo lnnrc of 1.0 nro l dru-r potassiunr hydroxide solut ion whic l t ca l l ncutra l iscs

25.0 cni l o f [ .0 mol dm-] su lphur ic ac id?

Bertrpukcth isigtdtt 1.0 nnl drti'' lrtruttrn kulitun hitlntk:;itlu )'crng boleh nenetrlrulkurt't\

4 t:ryt't 1.0 molcln{r usid.sulfin'ik ?

A 12 .5 cmrB 25.0 cn-rrC 50.0 crn 'D 70.0 cnts

45 You arc rcquircd to vcrify thc cation and anion in a satttplc ol-anttnottit"tttt clt loridc

sal t so lut ion.What substaltce ctltt yotl Llse to verify thc caticltt atrcl arl iotr '/

Andu dilichcndulti ntcnge.rulthctn krrtiotr dutt union dulunt.sdltt sotndl)ul lorulcut gdrottt

a n r mo rt i tr rtt lil r n' id a.Aptakuh bcthttn.t,trng undtt bole'h gunukon trnltrk tnengc:;ahlurtr kutiott tlun rtttion?

Cat ionKotion

AnionAnion

A Nessler reagentRettscn l,,lc.ssler

Dilute ni tr ic acid and si lver nl l rateAsicl nitrik cuir don orgenttrnts' nitrat

B Nesslcr reagcntRt'usan lVcsslcr

Di lute hydlochlor ic acid ancl bar ium chlor ideAsicl hitlroklorcih c'uir clun brtriLrnt kloridu

L-, Potassium thiocyanateKulhtnr liosiunctt

Di lute ni tr ic acid and si lvcr t t i t rate Asid ni tr iAcuir dun ur{qtltntts' ni!t'ttl

D Polassium th iocyanateKuliunt lio.sianul

Di lu tc hydlochlor ic ac ic l and bar iun chlor ic lc

Asicl hiclrokloraik t'uir clun buriunr ltlttridtr

454t t l

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S U L I T ( 2 7 ) 4 s 4 r / 7

46 Table 5 shows thc total volume of oxygen, collected in the dccornposition of hydrogenperoxide catalysed by manganese(lV) oxide.

Juduel 5 menunjukkan jumluh isiltuchr oksigen.),ung dikunprl dulun pengttraian hiclrogcnperoksiela yung elimongkinkan oleh mungun(lV) oxitla.

Timc (min)Musa

0 I 2 -l i+ 5

Volumc of gas.Isipadu scs (cm') 0 I t . 20 23.60 29.70 3 1 . 4 0 3 1 . 4 0

Table 5Jacluul 5

What rs the average rate of reactionBeropttkuh litrdtrr titrduk hulus purota?

A ( ; .28 crr r r rn in- lI - l

B / .6 ) cn) n l ln

C 9 .90 cm] n r in - r

D I 1 . 8 0 c m r m i n - l

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STJLIT ( 28 )

47 Diagranr l4 sholvs thc set up of the apparatus for an experintcnt to dcterrllinc

154r l rthe latc of

reaction betlveen sodium thiosulphate and sulphuric acid'Ra.jah l4 menrtnjukkan .\u.tunen racltts hagi ekslterimen trntuk menenlukan kuclur tintluk

halas anteva natriuut tirt.sulf'at dengon asid .sullirrik.

Sodiun thiosulphate solut ion andsulphuric acidNutrium liosrtlfltl dun usicl sulf ttilr

Mark XTundu X Whitc paper

Kcrtus trtulih

Diagram l4Raiah 14

Which of thc fb l lowing combinat ion of thc condi t ions takc shor tcst t i r t rc tbr thc ntark

X to disappear fiom sight'/Antarct kombinusi keadaan berikrft "vctng mctrutkuh men5lumbil ntusa paling 'sittgkot

ttnttrk tancla X hilang dcu'ipada penglihatan?

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Sulphuric acidAsid sulli lrik

Sodiurn ThicLqntlan nl

rsulphatc solut ion ]triun tiosul/at-C-"*t-rt-tron-.l

Kcpelulun(mol dm- ' )

TerntrreraturcStrhtr("c)

VolumcIsipuduicms)

ConccntrationKepe kutun(moldm-r )

VolumcIsipudu(c- ' )

A 5 t . 0 50 0.4 l 0

B 5 1 . 0 50 0.4 ,+0C 0.5 50 0.4 30D l0 0 .5 45 0.4 __ 10 - -



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SULIT (29 ) 4 i4 r t r

48 Table 6 shows the hcat of combustion of thrce alcohols .Jtrduql 6 menunitrkkan huba ltentbak(tran bagi tiga alkohol.

AlcoholAlkohol

Heat of contbust ion / kJmolIIttbtt pc'rtrhtrktrran /kJnol l

C H I O H - 7 t 0C:[tsOH t370C+HvOH -2610

Which of the following factors increases the heat of combustion of alcohols ?

Antarq.fqktor berikut , yeng monukqh menantbehkcut haba pernbakat'an alkohol '/

A Size of molecules decreasesSaiz molekul berhrctng

B Number of carbon atoms per molecule increases

Bilangun trtom karbon per molekul berl(Inlbah

C Number of oxygen atoms per molecule incrcases

Bilangun alom oksiS1en per molchtl bertqmbah

D Number of hydrogcn atoms pcr urolecule itrcrcases

Bilungan atom hielrogen per molektl berkurung




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S T I L I T ( 3 0 ) 4 i 4 r t 1

49 Diagram l5 shows encrgy level diagrams for the reaction between hydrochloric acid

and potassium hydroxide .Raiah l5 ntenuniukkan gambarajah aras tenaga untuk tindakbqlas anturtt osiclhidroklorik dan kulitrttt hidroksida .

L,nergyTenager

Diagram l5Ruiuh l5

Calculate the amount of heat released when 50 cm3 of 2 mol dm-l hydrochloric acidreacts with 50 cml of 2 rnol dm-3 potassium hydroxide solution.Hitungkan jumlah haba yang dibibaskan opnlih 50 cm] asid hidroktorik 2 mol clni'|

bertiidak 6alas dengan'50 im3 lamton katium hiclroksida 2 ntol tlnfl

A 5.40 kJB 10.8 kJc 27.0 kID 54.0 kJ

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suLIT (31 ) 4s4r t l

50 Thc fo l lo 'uv ing cquat ion shows thc combust ion of heptatrc , C7H16 in cxcess oxygcn.

Persqntaan beriktt menttnjukkan pembakaran heptana, CtHto dulqnt oksigen

herlebihan.

C r H r o + l l O : + 7 C O : + 8 H z O A H = - 5 5 l 2 k J r n o l - r

ln a1 expcr i t rcpt thc contbLlst ion of hcptanc in cxccss oxygcn re lcascs 1378 k. l cncrgy-

What is the mass of heptane used'/

Dalctm sutrr eksperimen pembakaron heptana dalant oksigen hcrlebihun membebaskqn

1378 kJ tenlgl.B e r a p ctka h .i i s i nt h e p t cr n a v' ct n g d i g un u ka n'?

f R c l a t i v c a t o n r i c r r a s s : H : l ; C : l 2 ]

Llisint atom relatil: H : I ; C : 12 )

A 25.0 gB 36.0 gC 77.0 gD 8t3.0 g

END OF QUESTION PAPERKERTAS SOALAN TAMAT



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Kimia Nama pelaiar :Kertas 2

SULIT

September Tingkatan20092% jzm

454y2

JABATAN PELAJARAN KELANTANDENGAN KERJASAMA

PERSIDANGAN KEBANGSAAN PENGETUA.PENGETUASEKOLAH MENENGAII MALAYSIA

CAWANGANKELANTAN

PEPERIKSAAN PERCUBAANSIJIL PELAJARAN MALAYSIA 2OO9

KIMIAKERTAS 2

Masa : f)ua Jam Tiga Puluh Minit

JANGAN BUKA KERTAS SOALAN INI SETIINGGA DIBERITAHU

Arahan:1. Kertas soalan ini adalah dalam

dwibahasa2. Setiap soalan mengandungi kedua-

dua bahasa Inggeris dan bahasaMelayu. Bahagian atas dalam bahasaInggeris dan diikuti di bawahnya olehbahasa Melayu

3. Calon dibenarkan menjawabkeseluruhan atau sebahagian soalansamada dalam bahasa Melayu ataubahasa Inggeris

4. Calon dikehendaki membacamaklumat dihalaman 2.

Kod Pemeriksa

Bahagian SoalanMarkahPenuh

MarkahDiperolehi

A

I l 02 10J 10AT l 05 96 l l

B 7 208 20

C9 20

_ r0 _]-_ 20umlah

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SUI,IT

INFORMATION FOR CANDIDATES

I . This question papcr consists of thrcc scctions: Section A, Section B and Section C.

2. Answcr all qucstions in Section A. Write your answcrs for section A in the spacc providcd

in the qucstion papcr.

3. Answer one question l iorn Section B and one question from Section C.

4. Write your answer fbr Scction B and Scction C on the "helaian tambahan" .

5. The diagrams in the questions are not drawn tcr scale unless stated.

6. Mark allocated for each question or part qucstion arc shown in brackcts.

7. The tirne suggested to answers Section A is 90 minute, Section B is 30 trinute and Scctiort

C is 30 minutc

8. You may use a non-prograrnrnable scienti l lc calculator.

MAKLUMAT KEPADA CALON

l. Kertas soalan ini mengandungi tiga bahagian: Bahagian A, Bahugiun B don Buhugiun C.

2. Jawab se,nua soalun dalam Bahagiun A. Tuliskttn jawopan unda unluk Bahugiun A dulutn

ruang yang disediakan cJalam kertu.s :;oalan.

3. Jawob stttu soalun daripatla Bahagiun B dun sattr soalon daripadu Bahugian C.

4. Tuliskan.jawapan anda bagi Bahagian B dan C padct helaian larnbahon.

5. Rajah yang mengiringi soalan tidak dilukis mengikut skala secuali dinyotaketn.

6. Markah yang diperuntukkan bagi setiap soalan qtau ceraian soalan dituniukkan dttlttnt

kurungan.

7. Masa yang dicadongl:an untuk menjawab Bahctgian A ialuh 90 minit, Ilohagian B -10 ninit

dan Bcthagian C iuJuir -i() ninit.

8. Anda dibenarkan rnenggunakan kalkuletor saintfik yang liduk bolch diprogrontkun.

( 2 )

http :/lsci-q. bloqspot. com

454t t2

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SULIT ( 3 )

Section A

[60 marks]

160 markahl

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Answcr al l qucst ions,lawub senruu 'sttulun

Diagram I shows the information about two types of solutions A and B which are used to carry

out titration with hydrochloric acid.Ra.iah I menttnjtrkkan maklunnl tentattg cluct jenis lartrlon A dan B yang digunakan unttrk

menj alankcm pentitrQtdn dengttn as id hidroklorik'

Solut ion A : 50 cm'r of 1.0 mol dm-] sodium hydroxide, NaOH

Lartrtan A : 50 cmr natrhtm hidroksicla, NaOH I '0 mol dm-''

Solution B : 50 cm'r of L0 rnol dm-l atnmoniurn hydroxide' NHaOH

Lttrrt lttn B : 50 cmr omntonit* hiclrok'siclu,NHlol1 l '0 mol dm-'

Diagram IRajah I

(a) (i) What arc thc typcs of solutions A and B.Apakuh.jeni,s lurulon A dan B.

( ii) State the formula of ion that present in both solutions'/N),atuk(tn./brmula ion vang hadir di dalam kedua-dua lQrutan'/

B, i f the pH value of Solut ion A isB jika nilai pH I'arutan A aclnlah

I mark)ll rnarkahl

ll mark)l1 markahl

t4 .14 .

( i i i ) Predict the pH value of Solut ionRanrulkan nilui PH hugi Larulan

f l markll1 mevkahl

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SULIT ( 4 )

Why thcre is different in pH value of Solution A and B?Mengapakah terdapat perbezaan nilai pH di antara Lanttan A dqn B?

4541t2

( iu)

(b)

(c)

12 marksl[2 markah]

Write the chemical equation between Solution A and hydrochloric acid.Tuliskan persamaan kimia antctra Larutan A dengan ol;icl hidroklorik.

1z-iaiil12 markah)

Calculate the volume of 0. I mol clm-l hydrochloric acid, HCI solution needed to neutraliseSolution A.Hitungkan isipaclu larutan asid hidroklorik 0.1 mol dm-l yang cliperlukttn untukmeneutralkan Larutan A.

13 marksl[3 markah)

Diagram 2 shows part of the Periodic Table of the Elements. C, D, E, F, G, and H do not

represent the actual symbol of the elements.Rajah 2 menunjukkan sebahagian daripada Jadual Berkala Unsttr. C, D, E ,F,G dan H tidak

mewakili simbol sebenar unsur-unsur berkenaan.

Diagram2Rajah 2



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suLIT (s ) 4s4r t2

Using the letters in the Periodic Table of the Elements in Diagram 2, answer the following

questions.b"rgon menggunakan huruJ--huyu.rang terdapat dqlam.IaduAl Berkala pada Rajah 2,

j awab soalan-slalan berikut.

(a) State the position of element C in the Periodic Table.Nyatakan kedudukan unsur C dalam JaduQl Berkala.

[2 maik]12 markahl

(b) Elcmcnt D rcact with water to produce alkaline solution and hydrogen gas.(Jnsur D bertindek balas dengan eir untuk menghasilkan larulan beralkctli dan gas

hidrogen.Write the chemical equation of the reaction.Tuliskan persamaan kimia bagi tindak balas ini.

(c) D and G have the same chemical properties.D dan G mempunyai sifat-sifat kimia yang sama.

(i) Which element is more reactive?(Jnsur yang manakah yang lebih reaktiJ?

(ii) Explain your answcr in (c) (i).Terangkan jawupan anda dalam (c) (i).

(d) (i) Which element is chemically inert ?(Jnsur yang manakah lengai secara kimia ?

12 marksl

[2 markah]

11 mark)I markahl

[2 marks]12 markahl

11 markl

I markahl

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SULIT

1-)-

( 6 )

( i i ) Explain your answer in (d) ( i )Terangkan f awdp(ut andct clalqtn (d) (i).

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11 t r rut l , )

l l t r t t t r ku l t j 1

Zinc plate / Kcpingan .: lr i i

Z inc sulphatc s<l lu t ionLuulurt zink sulJht

(e) State one specia l character is t ic : o l -e lernents I INyalakan sulu ciri isl imewtt unsur ft.

l l t t t , t t ' l i l

[ | t t tor l iulr l

Diagrarn 3 shows par t of thc sct up of a l lpara lus o1- a c l rcr r r ica l ce l l .Rc1jah 3 nrcnunjrtklicrn se bcthttgittn cluripudu susutten rutlu.; bugi .sucttu scl kitttiu.

Colrlrcr platc / Kcpittgotr kultrttrrr

Pttrtrtts pot I l)tt.: ' tr ht'r ' l i tut,!

Cop; ler( I I ) sLr lphl te sol r r l ionItrt't t I cttt li u prr r n t ( I [ ) .s rr I f u t

Diagranr 3I?t.riuh 3

(a) Draw a comple lc sct -up of apparatus fbr the chcnr ica l cc l l or r [ ) iaqrarr r 3.Ltrkiskun su.\un(u1 roda,s 1:ung lengkt4t ltttgi .stl kittriu ltuclu llolalr 3.

| | t t t t r r l t I| | t r rur l ' t r l t l

(b) Labcl thc ncgat ivc c lcct rodc as ( - )and posi t i i , 'c c lcct roc ic as { ' l - )on thc conrplc te( lchcnr ica l cc l l .Lctbelkun clcktrocl ncga/if ' ,scbugui ( - 1dun clcktrod positif saktgdi ( t ) lt i tcltt t ' tt j ,r lt.sclkimia vang lelah lengkup.

l1 ntur l i l

l \ nrur fur l t l(c) State tlre flow of electron for thc chernical cell in diagrarn 3.

l,'lr,atakan arah pengttliran elektron bugi sel kintitt ltutlu tlttjuh 3.

l l murk l

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S T I L I T ( 1 )

(d) What is thc function of the porotls pot uscd in the above chclnical ccll?

Apukah /imgsi pasu berliang )'}ang digunakan dalam sel kimia di atas?

(e) What can you observed at the negative electrode'/

tlpuktth yttng boleh ctncla perhttlikan paclu elektrod negutiJ'?

(i i) Give thc reasot.ts for your answcr.

Bt'rikun scluh fiagi .,urr',r1'un unJu

l l marklntarkahl

l1 nturkl

ll marktth)

ll murkll1 markahl

l l mork)l l nurkulr ,

nsing mctals A, B and C as thc clcctrodckimia menggunqkan logam A,B dan C

u

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( f ) wr i te hal f equat ion lbr the d ischarged of ions at posi t ive e lect rode.

Ttiiskan persamaon setengah bagi ion yang clidiscrts podo eleklrrtd positi/.

l1 murkfl l markahf

(g) ( i ) I f thc coppcr p latc in thc chcnr ica l cc l l abovc is rcp laccd by s i lvcr mcta l , what wi l l

happen to thc vol tage reading of the cel l '

Jika kepingan kupntm di dalam ,sal kimict tli atas digontikan dengon logam

Qrgenntm, apakoh vctng berlaktr lrcpada nil(li t,oltQn yang alcan terhctsil.

( h ) ' fab lc 3 shows thc vol tagc of chcmical cc l l

Jadrral 3 menuniukkan nilai voltan hugi sel

sebagoi elektrod.

Pairs of mctal

J:pgt:sgr, tggglJ-B / C

Vol tagc (V)

aibr,"plelJll)0 .1

I 'osit ivc clcctrodc

_Els!!te4]!,'L!1_C

A / C 0 . 8 C

Table 3Jqdual 3



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SULIT ( 8 ) 454u2Based on thc information givcn, calcuiatc thc voltagc of a chemical cell using metal Aand B as the electrodes,Berdasarkan kepada maklumat yang diberikan, himngkan nilai voltan yang akandihasilkan oleh sel kimia yang menggunakan logam A dan B ,rebagai elektrod.

[2 marks]

[2 markah)

Diagram 4. I shows the set up of apparatus fbr an experiment to determine the empiricalformula of magnesium oxide.Raiah 4.1 menunjukkan susunan radas bagi suulu eksperimen untuk menentukan.fbrmulaempirik magnes ium oks ida.

Li,-1tDentitti.y.,

(-lnrcrble

ilfrrxgxirip3r:crr

(a) What is the meaning of empiricalA pakah ma k ud formu I a e mp i r ik?

Diagram 4.1Rajah 4.1

formula?

I marklfl ntarkahl

Ivlagne snrm ribb.:nhla nragne.num

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SUL IT (9 ) 4s4 r t 2

(b) Diagram 4.2 shows the results of thc cxperiment.Rajah 4.2 menuniukkan keputttsatt experiment itLt.

Mass of crucible + l id : 24.8R o

Jisint ntangkuk pijar -r penutttP

Mass of crucibtc + lid + magnesiurr ribbon : 25.12 g

Jisim mangktft pijar + pentttttp * pita magncsium

Mass of crucible + l id + magnesium oxide : 25.28 g

Jlsim mcmgkuk piiar + penutltp + magnesium oksida

Diagrarn 4.2Rajah 4.2

Based on Diagrarn 4.2, complete Table 4 and deternrine the empirical formula of

magnesium oxide.Berclasarkun Rujuh 4.2, le ngkaltkctn Judual 4 dan selcnrsnyu lentukan formulaempirik bagi magnesium olcsirla:

[Refat ive atorn ic mass: O : 16, Mg:24]

fJisim utom relotif. O - 16, Mg - 2al

ElcrncntLJnsur

Mg o

Mass (g)Ji,s intNurnber of molesBilangan molSir-nplcst latio of molesNisberh ringkas bilangan mol

E,mpirical formulaIiormulu empiric

Table 4Jctduol 4

16 murk's)f6 markuh)

(ii) Writc thc chcmical cquation for thc rcaction in the experiment.Tulislran persamaan kimia bagi titrdak balas dalam eksperimen itu.

11 murkl11 markah)


( i )



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su l rT (10) 454r t2

(c) Why the proccss of heating, cooling and wcighing are repcated until a constant rnass isobtained?Mengapakah proses pct ldnasan, perr')ejuka,r dun pcnitnbangun dirtlang.schingga.iisim

.va,1g telap d ipe ro I ehi'?

l l murk)

ll nrurkult)(d) Why this cxpcrimcrrt is not suitablc to bc uscd to dctcrnrinc thc cmpirical lbrrnula of

copper( l l ) ox ide ' iMe.ngatrtakah ekperinten ini tidak sesuai cligunakan rrnluk ntencnlrrkun.fbrmt.tlo emstirikkupmm(ll) oksida't

L I t?rcrrKs )l l murktth)

Diagram 5 shows thc sct up of thc apparatus of an cxpcrinrcnt to invcstigatc thc lransfbr ol

electrons at a distance. Solution X is an oxidising agent and turns colour from purplc to

colourless solution after a few minutes reacted.Rajah 5 menunjukkan susltnan radas eksperimen bagi nengkaji peminduhctn elelrtrcn pctda

sutu.jaruk. Larutan X ialah agen pengoksi.daan dan berlukar vnarnu dari ungu kepaclalarutan lidak berw,arna selepcts beberapa minit bertindak balas.

CarbonKarbon

x

CarbonKurbon

Potassium iodidc solut ionLqrulan kal ium iotlicla

Di lute sulphuric aciclAsicl sulfurik cair

Diagram 5Raiah 5

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SULIT

The overall ionic equation for thePersamaan ion keselnnthan bagi

( l 1 )reaction istindak balas yang berlaht adalah

454112

2 M n O a - + l 6 H * + l 0 l - * 2 M n 2 * + 8 H 2 O

State the name of Solution X

ltiyalukan numu larutun X

+ 5 lz

(a)

( l r )

11 marklllmarkahl

Cal :lte the oxidation number of manganese in MnOq- ion.

I t, iungkan nombor pcngoksidaan bagi mangan dalam ion MnOq

[1 mark]

l lmarkahl(c) State thc typc of rcaction that occurs at elcctrode A'

Nltatakan jenis tindakbalas yang berlaku pada elektod A-

I marklllmarkahl

Referring to the reaction that takes place at electrode B.

Menjuk kepada tindak balas yang berlaktt poda elektrod B'

(i) State the observation?l{yatakon pemerhatian'/

( i i i )

[1 mark]

llmarkahlWrite the half equation for the reaction.Tulis setengah persamaan bagi tindakbalas.

; ,Lt mqrK)

llmarkah)Explain the reaction that occttrs in terms of transfer of electron.

Terangkan tindak balas yang berlaku dari segi pemindahan elektron-

[1 mark)

ll markahl

( t l )

( i i )


PERCUBAAN SPM (2009} - KIMIA KERTAS 2


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SUL IT (12 ) 4s4 r t 2

(e) State the function of the dilute sulphuric acid in tltis expcrimcnt.Nyatakan fnngsi bagi asid sulJirik cair dalam eksperimen ini.

ll rnarkfllrnarkahl

(0 In other eiperiment you arc given zinc strip, copper strip, coppcr(ll) sulphate solutionand all apparatus requircd.Draw a labelled diagrarn to show another sct up of apparatus to investigatc thc transfcr ofelectron at a distance.Di dalam eksperimen lain andq dibekalkan dengan kepingan zink, kepingetn kupnrnt,larutan kuprum(Il) sulfat dan semua radas yang diperlukan.Lukiskan sattt gambarajah berlabel untukrnenunjukkan susunan rados bagi ntcnliiascttpemindahan elektron pada sat u .i arak.

12 marksl[2 markahl

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SUL IT (13 ) 454112

6 The thermochemical cquation below represcnts the combustion reaction of an alcohol in theair.Persamaan termctkimia ctibawah ntewakili tindak balas pembakurcut sttnttt ulkohol eli trderrcr.

C+HqOH + 60: + 4CO2 + 5H2O LH:-2679 kJmol- '

(a) (i) State the name of the alcohol in the above equation.

Nyatakan name elkohol di clalam persamaan di ateu'

[1 ntarkl

f lmarkahl(ii) What is mcant by'AH : -2679 kJ mol-r ' in thc abovc cquation'l

Apakah yang dimaksudkan dengan'AH: -2619 kJ tnol-'\' dalam persamaandi atas?

l l markl

Imarkah)(b) 0.37g of thc alcohol that is natlcd in (a), uscd to hcat 500 g of water.

0.37g atkohol yang dinamakan di (a), digunakan unhrk memanaskan 500 g air.

Calculate,Ilitungkan,

(i) thc heat rclcascd by thc alcohol in thc reaction.

[Molar mass of thc a lcohol :74 g nro l r ]

haba yang dibebaskan oleh qlkohol itu dalqm tindQk balas

lJisim molar alkohol : 74 gmoltJ

(ii) the temperature change of water expected in the experiment in (b)

fSpecific heat capacity of water: 4.2 J g' ' "C-' lperubahem suhu etir yang chjangkakan dalam eksperimen ini-

lHaba lenlu air; 4.2 J g' ' "C'')

l l markll lmarkahl

12 marksl[2rnarkahl

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su rT ( r4) 454y2(c) Draw the energy levcl diagram for the combustion of thc alcohol.

lnkiskqn gamhar rclah ara.s tenugu unluk Stenbakqran ulkohol ter.-ehut.

12 mark,tl12marlurh)

(d) ' l 'ab lc 6 shows thc heat of combust ion of var ious a lcohols.

Jadual 6 menuniukkan hctba pembakqran pelbagai ulkohol.

Table 6Jadual 6

( i ) Predict the heat of combust ion of propanol.Rqmalkan haba pembakaran bagi propanol.

11 nturklll markah)


Numbcr ofcarbon atomsBilangun atont

karbon

Molecular formulaFormulu molehul

Name of alcoholNama alkohol

Heat ofcombustion

Habu pcmhakaran(kJ mol-')

CHrOH Methanol -726) Cu HsOH Ethanol -131 6J c.r["l70t'l Propanol{+j

C 4 I I 9 O I I -2679" " " -- J J J JC s H r r O H Pentanol



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SI IL IT (15 ) 4s41 t2

(ii) Based on Table 6, explain why as the number of carbon atotns incrcases so does the

value of heat of con, bustion.Berdasarkan Rajah 6, terangkan mengapq apabila bilangun atom kqrbon

bertambah nilai haba pentbakaran juga bertambah.

12 marks)

12markah)




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SULIT ( 1 6 )

Section B

[20 marks][20 markahl

Answer any one questionJawab mane-mane salu soalan

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1 Diagram 7 shows the symbols which represent three elements, W, X andRajah 7 meru.rnjukkan simbol yang mewakili tiga unsur\N,X dan Y.

Diagram 7Rajah 7

Based on Diagram 7, answer the fbllowing questions:Berdasarkan Rajah 7, jawub soalon-soctlan berikut:

What is represented by number 12 and 6 in tlre symbol of elernent W?Apakah yang rliwakili oleh angka 12 dan 6 dalum simbol bagi un,sur W'/

12 marksl

12 ntctrkultfDraw thc structurc o1'l in akrur of thc clcr-ncrrt X using tho modern atornic model.Lukis struktur dlunt lrdgi trtt.\'i.u'X dengan trrenggttnakan model atom utoden.

f4 nrurksl

[4 ntarkah)Atoms W and X can form chernical bonds with atom Y.Alom W dqn X boleh membenltrk ikalan kimia dengan atom Y.

State the type of chenricul bond ancl explain how the bond is formed between:Nyulukun jenis ikctlan kimirr dan terangkun bagaintuna ikulun terbenluk onlora:(i) Atoms W and Y

Atom\N dan Y

( i i ) Atoms X anC YAlctm X dan Y

110 murlisl110 rnarkahl

(a)

(b)

(c)



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SULIT (17 ) 454U2(d) Describe the differences in melting point or electrical conductivity of the cornpound

formed in (c) (i) and the compound formed in (c) (ii).Huraikan perbezaan dalam takat lebur utau kekonduksian elektrik bctgi sebatian yungterbentuk d, (cXj) dan bagi sehatian yang terbentuk di (c)(ii).

[4 marl<sl14 markahl

8 (a) Ethene gas is bubble through bromine water.Gas etena dialirkan melalui air bromin.

(i) What is the observation and state the type of reaction happens?Apakah pemerhatian dan nyatakan jeni.s tindak balas yang berlaku?

(ii) Give the name and draw the structure formula of the molecule of the product.Berikan nama dan lukis formula struktur bagi molekul hasil tindak balas.

[4 marks][4 markahl

(b) A hydrocarbon Z contains 82.75o/o of carbon by mass.Satu hidrokarbon Z mengandungi 82.75% korbon mengihtt jisim.[Rclative atomic nrass: H:l , C:12]lJisim atom relatif: H=1, C:l2l

(i) Calculate the empirical formula of Z.Hitungkan Jbrmula empirik Z.

(ii) Determinc the molecular fomrula of Z if rclative molecular mass of Z is 58.Tentukan .formula molekul bagi Z jika jisim molekul relatif Z odakrh 58.

[7 marksl[7 markah]

(c) Compare the properties of vulcanised rubber and unvulcanised rubber.Bandingkan silat-si/Al getah tervulkan dan getah tak lervulkan.

Your answer should include the following properties of rubber:Jcrwapan anda hendeklah mengandungi sifat-sifot getah berikut:

(i) ElasticityKekenyalan

(ii) Strength and hardnessKekuatan dan kekerasan

(iii) Resistance toward oxidationKe t ahan an t erha d ap p engo ks idaan

Give the reasons for all the properties above.Berikan sebab bagi semua sifat-sifat di atas.

19 marksl[9 markahl

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STI I , IT ( 1 8 )

Section Cl

[20 nrarks]l)0 murkuhl

,,1 tt strar r/l/.t' ollc q t t e.t t t o t t

. luwu h me n d- nt(tt1u .s tt l t r 's rt a I ttn

(a) l. 'oocl aclclit ivcs arc chcruicals that ars uscd in processcd lbod' They l ' tclp ttr

i , , l rgcr . look bct tcr ant l tastc n lorc dol io ioLls .

Stutc tlrc lbocl aclclit ivcs tltat arc sLritablc to Llc ttsccl fbr thc abovc purposcs

4511 t2

makc fbod last

and cxpla i r r

l ro t ' the ac ld i t i vcs ac t .

IJLtlr t tr t l t r t t tbtt l t r trukLrnttt t rr tetrtrpttkcrrt hultan kimia yang t l igunulun dolunt mukdnan .1ang

tl i l t t .rr .sc;; . l t t ntenolonc tncrt iur i i l ictn nttkunun Icrhttrt l t t t t t t t , l iel ihtt t tr t t menurik dun lebih

.s'e t l u 1t.N1'rt t t tktrt t btr l tutt t trrnbrrJt tr tol ictt tutt . t ' (utg.r( 'strLt i digturcrkutt tr t t t trk t t t i t r t tn di olt ts don

It:rutrgkun bttgtt i tr t t t t t tr l tul tun i tr i herl i t t t l t r l i '

I t r r t r , r r ' l r r ' ]

16 nrtn'liult)

(b ) OLr rNut i66a l Mont r rnen l i r r Kr - ra la L r - r rnpur i s rnorc than lo r ty ycars t l ld . I t i s t t ta t le l i t t t t l

b ropze. an a l loy o t ' so l lpc r a r rc l un t i l toc lay , i t i s s t i l l s tanc l ing h igh , s t ro l lg and beat r t i l i r l

Ttrutt , \ i t ,grtrtr di Krtt t l t t Lrrtultr t t ' .strt / t th menjtrnt l ; tnr trmttr lehih enlpul l t t t l t th tulrtrn lu

diltpt.ttrtit tlrrt.iltut.lu gctrtgsti,strultr crlr.ti hrpt'r.rtn dcrn schittg;4u sekordtlg itt mLt't^ih bcrdiri

l i 'gt r l t , l i t r tr t Ll trn t t tctt t t t ' i k.

( i ) I {c le r - r . ipg tg thc s i tua t ion above, descr ibc one cxpcr i t t re r } t to co lnpafe the ha l ' c lness o l a l loy

l l .9p t i t s p tc t i r l . Yeu l e xp l rna t iou shou ld inc l t rc lc thc l i r l l ow i t tg aspe c t ;

' \ | c t . t t l t t l i k t '1 l t t t | t t , l i | t t t t s ' i t | i t t | t t . s ' ' l t t t t ' t t r | i t t t1 .1 '111111, l ; -1 :1 l t ' t . i t t t t ' r t t tn | t t | rn ten t l l t t t t t l i t tgk

t t lp i t l t t r i l t ) ,q i tpy4 : ( t . l ) ( ,11 , t ' ( y t ! ( t t t t tn t l t t n t t ' . s l i l t t l t r r t t : t ' t t r t ,g l t t t t t t i , t t l t t k - t t s l t c l i l t r i l ; t t t '

lv l atel i l ls rncl alt l lartt t t ts

l ](t l tdn Jdtt t 'ddLt.\

I)roce dut 'eKrrt ' t l t r l t' l

abu la t ing o1 'da tal ' t ' r r j t r t I t t r t I t t t t t l t t I t t

( ' t i nc l t t s io l tK t ' , s i t t t l t t r lu r t

[ 9 m l r ks ]

It) ntttt ' l i t thl

Lihat SebelahSI. ILIT

PFRCUBAAN SP[1 1:]irOe) - Kll"11A KERIAS 2


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STIL IT ( i 9 1 1511 t2( i i ) [3y us ing a la l tc lcc l c l iagr l r t r o f ' thc ar lanqci r . rcut r r l - l r tours inr .o r r rc ta l ur t r , l i ts l l lor , : ; .

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| 5 r r l r l l ' s Il 5 r r r t r t ' l , , t l r j

A g rou l t o i p t rp i l s e l r l r - i c c l ou I t \ \ , ( ) \ ' \ i ) ! l i ] t t e : l l s i i ) s t l t i l v i l r c n r t c r r l ' r c l r c t i on l - r c t r vec t rt t l l t g t t c s i L t t t t l t t r t l t r t o i t i i t l s . l t r r l r r i e l t l r r r i t t r i c i , l l l t t l : i i : j l l ' 1 . l ' l l l t , l c l ( ) s l t o r i s t l t c t l t r l l r l l ' o r r r[ : . r pc r i n r cn t I a r r r l L rpc i i i r r r r e l t t I i

S t ' k t t t t t l t t t l t t t t t t t t t t i t l / t ' l t t l t t n t ' t t f t r l , t t t i t r t t t l t r t r r ' l ; s 1 ; , . ' t t t i r , . t t t r t t r t r k t t t t , t t i : l i r t l i l i t r t / t r t ' t i r r i / t i l , l t . t i t r s

L t r t l t t t t r t t t t t . q t t t ' . : i t r r t t t l t ' t t , t , r r t , l r t i r , : : i , 1 . r , ' . ; . i t i , l r r , l : l t . ' t , l , r ! r u t L r . : i t i l ' . . / u ' i t i , r l i O r t t r , i t t t t t l t r l , l i r t t t

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t 0

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. l r l , ' , r ' i . i . ' , r r r , il r ' , r l t , r . qc l r r , . s

\ | t r , g r t t ' . ; i t r l i t l , I t t t i L l t r

. i r t r r : 1 , r ; I t : , l i t t r ! t ' r t

O b s c r r r t t i o r tI ' t ' t t t t : t ' I t t t I t t t t t

' ; . ;I l t t ' l e n i p t - ' t l t t r t u o I

t l t e n l r r . t r r r - e

i r r e r - e . r s e s .

, \ ' t t I t t t t t t t t t l t t t r ' , t t t

I t t t ' t t | | | ! ! l , t t /

' l l r e 1 t ' t t r p e n r l u l r ' ( ) l

l l r c n r i r t r r l e

I l l ( ' l - C i l s ( J S .

0 . ( r U t r r l r g t t . : \ l L i l l l l ' i b h ( ) n

i l t t ( l i { l \ ' r t l r \ r l r , ' . 1 1 1 ' , ' , '

J c r r l - . { ) I t t o l t l r r t

l l . ( t g 1 t i t t r nt i t . t : t t t ' \ ' i I t , ' t i

( l L ' i t , q ( t t ] l ( ) c r t t '

I t . t t l t ' r t , l t I t t t i , t t t , ' t t 'r . 0 r t r o l t l r r r

0 . ( r g t t l t r , , , t r , . ' s i u r t r r i l r l r o r r

l t t r r i - l ( t i r r r t r r i , j ' l

1 . 0 I r r t i l , l r t r

l l .6 : , 1 t i t , i t ] t , r . \ : i t , . \ ' i t / | | t

i l i ' t t , g t t t t - l { ) r ' n r r l r ' r r l I

l . ( ) n r l l t l r r r

\ , l , i . t ' i ) , : , t t t i t s t t l l i t l \ ) u l n t \ ' t t t i l l ) u t ' ( i l 1

i l ( | | t : : t i \ i t ! ( i ) t ) . ! ( t I i I t { ' t I i t l t : 1 . : ( t /

I I

I l r l - l c I 0

J t t , l t , , t ' 1 l \

i l . i l r a l Scbc l i r h

S T ' I , I ' TPERCUBAAN SPNl (2009) - K I I \1 IA KFRTAS 2


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SULIT (20 )

(a) (i) Refening to Experiment II, state the name of acid T used'write the chemical equation for the reaction of acid T with magnesium.Merujuk Ektperimenll, nyatakan nama asidT yang digunakan'Tuli.skan persamaan kimia bagi tiruJak balas asidT dengan magnesium.

(ii) Draw an energy profile diagrarn for thc reaction in l0(aXi).On the energy profile diagram show the:

Explain the energy profile diagram

Lukis satu gambar raiah profrl tenagu untuk tindak bulus di l0(a)(i)'Pada garnbar raiah profil tenaga itu tunjukkan:

Jetaskan gambar rajah profil tenaga itu.

454u2

[2 marks]12 markahl

|0 marksl

110 markahl

Lihat SebelahSULIT



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SULIT

(b)

( 21 )

The graph in Diagram l0 shows the results of Experimcnt I and Experiment II.Graf pada Rajah l0 menttnjukkan keputusan bagi Eksperimen I dan Eksperimen

Volume of hydrogen gasicmlIs iputlu gus hidrogen/cmr

454U2

II

Lihat SebelahSULIT

Tirne /sMasa/s

Diagram l0Raiah l0

Based on the graph:Berdasarkan graf(i) Calculate the average rate of reaction for Experiment I

Hitungkan kadar tindak balas purata bagi Eksperimen I

[2 marks][2 markah]

(ii) Explain the difference in the rate of reaction between Experiment I and Experiment Il.Terangkan perbezaan kadar tindak balas qntara Eksperimen I dengan El<sperimen lI.

[6 marks]

[6 markah]

END OF QUESTION PAPER

Experiment II

Experiment IEksperimen I

PERCUBMN SPM (2009) - KrMrA KERTAS 2


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STILIT

KimiaKertas 3September2009l % j a m

454U3

Nama Pelajar

Tingkatan

JABATAN PELAJARAN KELANTANDENGAN KERJASANIA

PE RSI DAN GAN KEBANGSAAN PENGETUA.PENGETUASE KOLAH MENENGAH MALAYSIA

CAWANGAN KELANTAN


PERCUBAAI\MALAYSIA 2OO9

KIMIAKERTAS 3

Masa : Satu Jam Tiga Puluh Minit

JANGAN BUKA KBRTAS SOALAN INI SEHINGGA DIBERITAHU

Arahan:1. Kerlas soalan ini adalah dalam dwibahasa2. Setiap soalan mengandungi kedua-dua

bahasa Inggeris dan bahasa Melayu.Bahagian atas dalam bahasa Inggeris dandiikuti di bawahnya oleh bahasa Melayu

3. Calon dibenarkan menjawab kcselumhanatau scbahagian soalan samada dalambaliasa Melayu atau bahasa Inggeris

4. Calon dikehendaki membacamaklumat dil ialaman 2dan3

Kod Pemeriksa

Soalan

JIJM LAH

MarkahPenuh

J J

Kefias soalan ini mengandungi 12 halaman bercetai<.

http :/lsci-q. bloospot. com

I Lihat SebelahST]LIT

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A

,5

STJLIT ( 2 ) 45,1 I /3

INFORN'IATION FOR CANDTDITES

l . This quest ion t r rapcr consis ls o1 ' t rvo c luest ions. r \ I rswer a l l c luest ior ts .

2. Writs your ans\4'crs fbr Qucstion I in thc spaccs ltror,iclcd itt thc tlttcstiutl l)rpt'f.

3 . Wr i tc yoLl r answers lbr Qucst ion 2 on the "hela ian t l t t tbahat t " . Yol t l t tL ty L lsc e( l t l l l t io l l ,

d iagrarns, tablcs, graphs and othcr su i table mcthods to cxpl l in yoLtr a l ls \ \ /cr .

Show your work ing, i t r t raY hclp you to gct tnarks.

l f 'y t lu wish to c l range your ans\ \ rc l - , ncat ly cross out t l te at tsrvcr t l ra t yo i r huvc dt l t ts . [ l rcr r r i ' r ' i tc

tlor. 'r 'n thc ncw allswcr.

6. Thc c l iagrauts in thc qucst io l ts arc not drarvt r to scalc t tn lcss s latcd.

7. NIark a l locatcd fbr cach c lucst ior . r or par t c l i tcst ior t a tc s l t t - 'wtr in brac l ic ts .

8. Thc t i rne suggcstcd to answers Qucst ion I is 45 t t t inLt les i rnd Qucst ion 2 is '15

nr i r rutcs.

You nray use a non-pr t lgrarnutablc sc icnt i l ic ca lculator .

l land vour answer sheets at thc c l td o1 ' thc cxat t r i t ' t i t t i t r t t .

Marlis arvardsd

MiarkExccl lcnt : T l rc bcst rcs l lo l tscSatisfactrlry : An avcrage rcsponsc

Wcak Arr inaccuratc rcspol.lsc

No response or wrong rcslloltse

r )

l 0

32I0

Lihat SebclahSTI I , IT

PERCUBAAN SPI,,I (2OO9i - KII\,IIA KERTAS 3


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SUI,TT ( 3 )TT A K L LIX,TA T K E PADA CA LO N

l. Kerlus soulun ini mettgundtrngi dtru soalun. Juv,ub .\emtu soulart.

2. 'fulis.jtnrupan

ltttgi Soulan I ddlom ruong.t'ong di,sadiukon clttlurn kerlct .goulon.

3. Ttrli.s jcttt'rtltun bogi Soalun 2 puclu kerlus heluiun ltrntbulrun )'ong tliserliukun. Andu

boleh nrangguncrkon per,tanloan, rujah, jacrtnl, graf' c{ttn curu lctirt yttrtg .scsttui

u n I trk tne tt j e I us kan .i au,ap ctn an da.

1. Tunjukkun kerja mengiro, ini memhunlu undu nendopulkun murkah.

5. Sekirrun,tr andtt ht:ndult nrcnrrkarlun.jutt,oparr, ltulalkon dengan kentct.s,iav'apun yang

It, lqh clihtut. Kemudiqn ltrl is jutt 'ctpun .t 'ang burtr.

6. Rttjoh yttrtg ntengit'ingi soulun tidalt rlilulii.t mt'ngiktrl skolu sat'truli din.t'ttlrrkun.

7. tr4orkoh t.'crng clilteruntukkon btrgi ,sctitrlt soolttn ulutr ceraictn so,tlun ttiturtiukkan tlalant

latntngun.

8. Mustt .t,uttg clicrttltrngkctn trnttrk ntanjctvt'ttb Soulun I iuloh 15 mirtit clan Soalun 2

iulah 45 ntinit.

9. ,1ndu cliheilurhan ntengeunukon kollorlutot'saintiJih yung litluk boleh diprrtgruntkan.

10. Serdhkan lterttts icnvctltan unclu tli akhir peperiktqan.

Pemht'riun Murkah:

Murkqh

1541t3

Lihat SebelahSI]LIT

- l - -

2I0

Ccmcrlong ; Respon yong paling baiklt4emuaskan : Respon -vung sederhctnctI

I

t

http ://sci-q. blogspot. Com

Lentoh : Respon yctng kurong lepal


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SULIT ( 4 )

[ . Diagrarn l . l sho$,s thc set-Lr1t o1 'apparatus f i l r i rn erpct ' i tner t t t

a lka l i rncta ls tc l rvatc is thc i r react ion wi th oxygcl l .

l lcticrh l. l nte ntrnjrrkkutt .ttt,suttcut radas ltugi .tuttr ek,rlrcrintUt

k er eak t i/ a n I r t gn m - | r t gtt m o I li o I i I e r I r u t I r t p o k-s' i ge rr.

451113

tc) co lnpsrc the rcact iY i ty of

t r tt I u k m e r t t lt o t tcl i tt g,

( i as . l a rl ltt l tttr.g !u.t

() i 1.gc' ir gtr,r( jus r t l t s igc t r

Alka l i rnc ta lLogttt tr r t l l ' ; t t l i

Diagrenr l . lIh jolr l . I

Thc cxpcr imcnt is carr icd out us ing a srra l l p iccc o1 ' l i th iur t r , l to t i tss i t t t r l ar rc l sot l i t t r r r rcs l lcct l \ ' ( l l ) ' t ( '

rcact witlr oxygcn gas.

Obscrvat ions on the a lkal i meta ls in the cxper imcnt l re shown in ' I 'ab lc I

Eksperimt,n clijulunkun ntrrnggtrnctkcrn kepingun kecil litiunr, kolittm dort ttolritltr s('c(tr'Lt

bc rt I t ru | (1 t't h e r t i n d a k b u I os cl cngu tr gcr'; o k's i g<z n.penterhutisrt lie ttlus logum-logutn ctlktlidalqm ek,s:perintert clitrrniukkun dalunr Judtrul l.

L ihat Sehelah

SUl-ljPERCUBAAN SPI\4 (2009) . KIMIA KERTAS 3


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s f JL IT (5 ) 4s41 /3

Whitc f i r r lcs

Il 'u.stt1t ltrt l i l tL i t l r i t rn r bur r rs s lo r r ' l y t tnc l l l r t t t l L tces

r ' r ' l r i t c lu r t re .

L- ith iuurL i t i rn r t

Whitc t i r rncsI'l'u,sct1t pu/ih

Potassr LtnrKulitrnt

l

White f i rmesIl'oscrp putih

I

I I I

__ lTablc I

J*lual l

Lihat SebelahSLi I - IT

PERCUBMN SPI',4 (2009) ' KIMIA KERTAS 3

http ://sci-q. bloospot. Com

papercollection

su r r (6) 4s1113(a) Look at the f ' ' larnc produced in cach experiment in Table l. Complete tlre Table I by stlt ing

the observation for eaclt reaction of alkali nrctals torvards oxygen.Perhatikan n.);qlqr,, ))ang terhasil clalam .setiap eksperinten dalam .Jcrdual | . LengkapkunJadual I dengan ntenyalokun penterhalian ke ctlas nyalluun sctiup tincluk ltulus logttma I kali clenga n o ks i gen.

13 tnttrlrs)

13 nnrkah)(b) Based on the experiment, completc the table belorv.

Bcrda,sarkan ekspo'intctt, lcngkapkan judual di bdv,ah.

Manipulated var iable:P e rn b o I e h u b a lt cl i nt a n i pu I os i ktt n

Method to manipulate the var iablc :C a ro tn a t r tct rt i 1t u I u.s i ka n p e nt b o I e h u h tt lr :

Rcsponcling variablc:Pem bo leh u balt bergeruk

Horv thc var iablc is rcsponding:Ilugaimuna pembolehubcth ini bergeruk bolcr,s:

F ixed var iablc :Pem bo I ehu bu h cli maI urkun :

Mcthod to nraintain thc l lxcd variablc:Cqru menetnDkun LtemboIehuboh dimuIorltun.

16 nturks)16 tnurliuh I

I Lihat SebelahSULITPERCUBAAN SPM (2009) . KII\, ' IIA KERTAS 3


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STI I , IT

(c) Stalc onc hypothcsis lbr t l rc cxpcrimont.Nyulukrtn sutu ltipolt'.ti,s bagi ak.spcritrtett itrr

( 7 ) 45.1 I /3

( c )

l , J t t ,arks l

l-) nrurl;uhl

(d) Givc onc in l 'erencc bascd on ths resul ts of ths rcuct ion between l i t l r iurn and oxygcn grrs.Bt't"ilitrrr sahr itt-fercn.s bt:t'dusarkclt kepLrrlu kepulttsan tittdoli bulds (utt(u'(r li/itrnt t/t'rrgtrttgtts oksigan.

1.1 nturli.s]

l-1 ntut'ltuhl

Based on thc observal ion in Table l , ar rangc l i t l r i r - r rn. potassiurn ancl sot l iurn in t lesccncl i r t , 'ordcr of rcaclivity torvards oxygcl.r.Barclasorkun pemurhulian dulttnt Judtral 1,.su,strnhtrn liliunt, kulitrn drrn nrttritrrt utt:ngiikrtllerl i b kcrcnkti./art I ogo nr lerhaclult oks i gut saL:Ltrd il tcnu nrtt.

l-1 m,trlisl

1 .3 r t rurhuhl

Thc expcr imcnt is repcatcd us i r rg a snra l l p icce of ' rubid ium to feact u, i th oxygcn.I {ubid iurr is r r rorc rcact ivc than l i th iunr , potassiunt and socl iur t r .Prcdic t thc obscruat ion fbr th is cxpcr inrcnt .Ek.sparitncn cliulangi nrcnsstrnakun sekclrtl ltccil rttbitlitttn unltrk clilinduli huluskun dan.qottoksigen. Rubiclium Iahih reuktiI berbartcling Ii|itrm, kaliurn clctn nalritrut.Rttrttrt/kon penrcrltutiun bugi tinduk hulus ini.

l-1 uurks'l13 tnurltuhl

( f )

[ , ihat ScbelahST ] I , ITPERCUBAAN SPM (2009) - KIMIA KERTAS 3


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SULIT

(s)( 8 ) '1541/3

Diul - l . l rm l .2 s l r r l l 's thc readi r rg o l 'p l I r r tc lcr n ' l ten t l t . : r t te ta l ox idcs tbr l l tcc l i r t Set l . I I l r r rd

I I I d i sso l vcd i n g ' a l e r .

Rt |uhl .2, tnt . , t t t tn j t tk l i r ' t t t | . lu t ' . t ' t t t t t t t tc |c t .pI |0 i ) | ]b i | ( to | i 's i t1 t t l t lg t t t l t . \ ' ( ' r | t .? |a] l l t ' t t | t tkI. l l drtn IlI t l i lurtrtkcrn clultttn trit ' .

i * s . t - l ' ' - _ : -_ - - - - - l * i - upo1 'app r rn t l t r s

1 Sot I Susut tur t rudusL

L \i;;;:=;;=-t7

i I \\r_ 7//I I p l l va l r rc - - - - \ t3 . tg i / /

I A i lu i p l l

p l l t r r c t c r 'I'latcr p l I

l . i l i u m l t v t l l o r i t l e

s t r l u t i o t t

Ld t r t I t t t t I i l i t r t t r

It idrr tk.t idtt

I

pi I v l t luc-Ir/ilui p,ll

l)otlss i r-rrt.t hvtl ro.r rt lc

Lt t t ' t r l t t r t k t t I i t t n t

Itit.lt'cli.s itltt

p l I r nc t c llvlt:lcr pll

p l ' l va l r " ic -

t'l ilui 1.tl I

Sr.rcli unr h1,c1'-""ct.so lu t i o l r

L tu ' t t I t t t t t t t t / t ' i t t n t

Itidrpk.;idu

___ p l l n tc tcr .ll.lctct' pll

Diagrarr I .2llujult 1.2

http ://sci-o. blogspot. com

[ - ihat Scbehh

SULI l 'PERCUBAAN SPIM {2009) . KII,IIA KERTAS 3

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STI I , IT (e)( i ) Record the pH value to one deci rnalp lace for Set I , Set l l and Set I I l .

Catutkan niloi pI{ patlct sctttt tempel perpuluhun bugi Set I, Set II dun Set III.

Set I

Set II :

Sc t I I I :

( i i ) Construct a tablc to rccord thc pFl valuc fbr Sct I , Sct l l and Sct I l l .Bina satu iaduql untuk nterekod nilai pII bagi Set I, Set II dan Set III

( i i i ) Statc thc opcrat ional dcf lni t ion fbr the alkal iItlj'crlqkan cle.finisi secera operusi hagi alkuli


454r t3

13 nturksl

[3 murkuhf

l-| mtu'ksll3 marlittll

13 murksl13 marhaltl

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Chernical substanceBuhun kimict

Anrmonia solut ionLctnttutt qntmonicr

Potassium hydroxide solut ionLanr ltut krl i u m h id rok.v i dctSo. l i i r rn hydnrxi t lc sol t i i ionLort r la n n ol riu m h i drok.s iclcr

SULIT ( 10 )

( iv) The fo l lowing is a l is t o f chenr ica l substances r 'v i th p l ' l va lue:

Berikut iulqh senaruibeberapct bcthan kintia clcngan nilui pIl

Classi fy thesc substauces in to st rong a lkal i and weal i a lka l i .

Kelaskan buhqn-Lrahun ini kepatlu ulkuli kuut tlan ulkuli lenttth

13 mtrrk.tl13 murliuhl

4541t3

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I L ihal

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s t i L IT ( l i ) 4s4 t t 3

2 [)iagrarn 2 show,s two sL]ts. Set I and Sot II, 01-the apparatus set-ttp ltncl t l.re rcstrlts for an

expcr i r r tent to s tudy the ef fects of metals X and Y on the rust ing of i ron.

Raltt lt 2 mentrnf rrkkon duu.set, Set I dan Set II,.su:;uttun rados don kepttttr.san bngi ,sattr

eksperimen trntttlt nte'ngkuji ke'sun logant X clun logamY ltc ctltts pcttgarulurt btsi.

Ilesult aller 3 dayst r ;; ty1 t9!,e p91\ ) !f!!i

Electroll4e ZElcku'olir Z

lrctn naill Puhr hesr

McLalXlLogam X

Electrolyte ZElaktrolir Z

I r r ln n l i l d id t to t r t rs tPokr besi ticluk berkurut

Iron nail rttsteclPokr besi berkunil

lron naillPuhr besi

Metal Y /Logant Y

Diagranr 2Raiuh 2

l{e fcrring to thc inlbmration above, plan a laboratory experiment to investigate the efTect of

nanrcd metals X, Y ancl nantcd clc-ctlolyte Z on t[-re rusting ol-iron.

Mentjuk kcltadu rnakluntal cli olct,s, rancangkan satu eksperimen tlalun makmul unttrk

mengltaji kesan logam-logum X .Y yang clinatnakan dan elelrtrolit Z yang dinamuhctn lic

itlus pengdr(ttan besi.

Lihat SebelahSIILIT

Apparatus set-upStt.gunan rodqs

PERCUBAAN SPI\,! (2009) . KIN'IIA KERIAS 3


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su rT ( 12 ) 4s4r t3

Your p lanning should inc lude the fb l lowing aspects:

Pcruncangan anda hcndaklah mengandungi asgtck-aspek herikul:

(a) Problem statementPernyalcurt masaalah

(b) All the variablcsSemua pembolehubalt

( c ) Hvpo thes i sI Iipotesis

(d) L is t o l nrater ia ls and apparatusScnqrui buhon clun rqclas

(e) ProceduleProsedur

(f) Tabulation of clataPt tt j t t t l t t , t I un <lt t ! t t

l l7 nurrksl

END OF QUESTION PAPERKERTAS SOALAN TAMAT

PERCUBAAN SPM (2009) - Kllvl lA KERTAS 3


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4s4l

cptenrberI

JABATAN PE]LAJARAN KELANTANDENGAN KERJASAMA

PERSIDANGAN KEBANGSAAN PENGETUA.PENGETUASEKOLAH MENENGAH MALAYSIA

CAWANGAN KELANTAN


PERCUBAAI\MALAYSIA 2OO9

KIMIA

UNTUK KEGTINAAN PEMERIKSA SAHAJA

SKEMAPEMA


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(2)

PEPERIKSAAN PERCUBAAN SPM 2OO9CHEMISTRY MARKING SHEME

ANSWBR OF PAPBR I

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{1


No. Ansrver No. Answer

I B 26 A

2 B 27 B

D 28 C

4 C 29 C

C 30 A

6 D 3l A

7 D ) z C8 C a a

J J A

9 A J + A

l 0 A 35 Bil B 36 Bt2 D a -

) l B13 B 38 C

14 B 39 Dl5 (' 40 At6 D 41 Dt7 A 42 D18 D 43 Cl 9 D 44 C20 C 45 A

21 D 46 B22 A 47 BZ J A 48 B. \ AL A D 49 A

25 ll 50 A

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LILIT ( 3 )

MARKING SICHEME oF PAPER 2

45

QIJITSTION NO Marking CriteriaMARK

SUB TOTALt ) ( i ) Alkal i I

r0

l l oH' I( i i i ) 7 < pFI <12 I( i v ) The concentration of hydroxide ions

The higher the concentration of OH-value.

in Solution A is higher.ions the higher the pH

II

(b) f{Cl + NaOHCorrect reactantCorrect product

-) NaCi + HzO l+ l

(c) MaVa :1 (mo lera t io 1 :1 )MbVb : I

Va : 0 .3x500 .1150 cm3

I

I

I2 ( r ) Group 16. Period 3 l+ l

10

(b) 2D + 2HzO )2DOHCorrect reactant & correct productBalance equat ion

+ H2 1

I(c ) ( i ) G l

( i i ) l'he nuclei attraction tou,ards the valence electroni is weaker inG. Thus it is easier for G to lose / release an electron to form apositively gharged ion.

II

(d ) I

ri i) I-{as stable/octet electrorr arrangement llhave 8electron valence

(e) ( i i ) Show coloured ion//formed complex ion//has ui.iour o^ioatio"number//act as catalyst

I

3 (a)

Draw the connecting wire and voltmeter

I

t0

(b) Labeling.zinc plate ) ( - ) and coppetplate ) I + ;(c) From zinc plate to copper plate through the external circuit

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U"UT (4 ) 45

lI

II

(d) To allow the flow of ion from both electrolyte through rt tocomplete the circuit

( e ) Thg zinc plate bgcomes thinner(r) Cu ' -+2e)Cu It o l\ tr,/ ( i ) The voltagc will be higher I

( i i ) The silver metal is under the copper metal in the etectroctremicatseries.

I

(h )0.1

BEA

0.8

For pair of metal A / B ,the voltage produced:0 .8 -0 .1 :0 .7V

I

4 (a) ( i) 'l'he chemical formula that shows the simplest ratio of atoms of the

elements present in ? compound.

t0

(b) ( i ) ElementUnsur Mg o

l + l

1+ l

1

I

Mass (g) 25. t2 - 24 .88//0.24

25.28 -25 . t2/ t0. t2

Number ofmoles

0.2.4/24 /t0.01 0.16 /16 / t 0 .01

Simplest ratio ofmoles I

Empiricalformula N gO

i i ) 2Yg * O, -'* 2\rlgo I(c) To ensure

qxygen.thatall the magnesium reacts completely with I

(d) Copper is an unreactive element towards oxygenf (a) Acidifi ed Potassium-rnanganate(VID I

9

(b)(c) reduction( d ) (i) Colourless solution turn brown I

I

( i i) 2I' --) Iz + 2e(i i i ) Iodide ion release electron I

(e) To allow the flow of ion from both electrolytes I(0 Functional diagram of sirnple cellLabel

II

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ULIT

The heat given off when I mol of butanol bum completely rnexcess oxvsen is 2679 l:1.( l ) Number of mole : 0 .37

74mol //0.005 mol

x26791 13.395 W/13.395 x 10r J2) Heat released : 0.005S ub st ituti on/Rep Iacement

13 .395 x 103 :500 x 4 .2x0/0 :13 .395x103

500 x 4.20 :6 .379 /6 .40C

Draw and label of the energy axis in the form of arrow withtwo level of energyFormula/lr{ame the reactants and products for exothermicreaction

Energy C4HeOH

LH: -2679 kJmol-r

4COz + 5HzO

Any value between: -2016 kJ mol-' < AH < - 2036 kJ mol-As the number of carbon atoms increases. there are morecarbon dioxide and watcr molecules are produceThus more bonds are formed

(s)


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RCUBAAN SPM (2009) . KIMIA

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Markine Criteria

12 represents the nucleon number.6 represents the proton number.

Able to draw the structure of an atom elements X.Thc diagram should be able to show the following informations:l. correct number and posit ion of proton in the nucleus/ at the

ccntre of the atom.2. correct number and position of neutron in the nucleus/ at the

centre of the atom.3. correct number and position of electron circulating the

nucleus4. correct number of valence electrons

Sample answer:

ULIT

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ULIT (7) 45

or

l l p + 12n

(c) ( i ) Atoms W and Y form covalent bond.To achieve the stable electron arrangement,atom w contributes 4 electrons while atom Y contributes one electronfor sharing.'fhus,

atom W shares 4 pairs of electrons with 4 atoms of y.forming a molecule with the formula Wy a ll diasram

iail.V4

( i i ) Atom X and atom Y form ionic bond.Atom X has the electron arrerngementZ.B.l. and atom y has theelectron arrangement 2.8.7 ̂


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LIT (8 ) 45

l'o achieve a stable (octet )electron arrangement,atom X donates 1 electron to form a positive ion // equation

X - > ; q + + e

Atom Y receives an electron to form ion y-l/equation and achieve astable octet elcctron arrangement.

Y+e ,_____r y-

Ion X* and ion Y- are pulled together by the strong electrostatic forcesto fbrm a compound with the formula Xy// diasram

I

II

I

Maxl 0

(d) The melting point of the ionic compound/ (b)(ii) is higher than rhat or tnJ-covalcnt compound./ (bxi) .This is because in ionic compouncls ions are held by strong electrostaticforces.Fligh energy is needed to overcome these forces.In covalent compounds, molecules; are held by weak intermolecular forces.Only a little energy is required to ()vercome the aftractive forces.

OR

The ionic compound/(b)(ii) conducts elechicity in the molten or aqueous sratewhereas the covalent compound/(b)(i) does not conduct electricity.This is because in the molten or aclueous state, ionic compounds consist offreely moving ionscarry electrical charges.Covalent compounds are made up of molecules only

or

I

I

I

I

II

maxA-

Total 20

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(i) l. The brown colour of bromine wat.ffi2. Ethene has undergone an addition reaction.

( i i) L The product is 1,2-dibromoethane2'

Br Brt l

H-C - C -Ht l

HH(i) 1. oZ mass of hydrogen :m

2 . Mo les ra t i oo fC : H : 92 .75112 : 17 ,25 / l3 . : 2 : 54. The empirical formula of Z is CzHs

(ii) l. Let the molecular formula be (C2H5)"Therefore, (12x2 + 1x5)n : 58

n :22. Hence, Z is CaHl6

Unvulcanised rubber Vulcanised rubber( i) Elasticity Less elastic.

Reason: t.he rubbermolecules can slideover each other easilywhen it is; stretched.

More elastic.Reason: the presence ofsulphur cross-links can pullback the rubber moleculesto their original positionsafter it is stretched.

(ii) Strcngth andhardness

Soft and less strong.Reason: the rubbermolecules can slideover each other easilywhen it is stretched.

Stronger and harderReason: the presence ofsulphur cross-links makesliding of rubber moleculesmore difficult.

( i i i ) Resistancetowardsoxidation

Easily oxidised byoxygen.Reason: the number ofcarbon-carbon doublebonds, C-C permolecule is high.

More resistance tooxidation.Reason: the number ofcarbon-carbon doublebonds, C:C per moleculeis low.


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(a)9 Food additivcs llow food aclditives reactsIrlavouring makes food tastierColouring colours food so that it looks more

AttractivePresen ative Prevent the growth of microorganism

on foodAntioxidant slow down the oxidation of food

* any three from above

)̂ample answer;Apparatus:

- I kg weight- ruler- retort stand and clamp- thread- steel ball

Matcrials:- copper block- bronze block

Able to state the steps.-1. a steel ball is stuck onto the copper block2. a weight of ('/, -2 ) kg is hung at a height of (0.5-1)m from the top of

Copper block.3. the weight / thread is released / dropped4. the diameter of dent is recordecl5- step I to 4 are repeated several times to obtain an averase of the

diameter6. the experiment is repeated using a bronze block.

Able to conslruct the table:

l l i xper iment I r l r@

f-;::-----:r-l--

l D l a m e t e r o f d e n t o n t h e h r o n z e h l o c k / m m l B l l 8 2 l B r l 4 - l

Able to state the conclusion..Il is smaller than A.Brass is harder than copper / alloys are harder than pure metals

1+ ll + l

l - r l

l +1

(b)(i)

1

I

1

I

II

II

(10)

Section C

454r

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( l i )

Copper

Copper

-Con'ect drar.v the arrangement of atom in copper-Correct drar.v the arrangement of atom in bronze-correct labeled of atom

The stanum atom distrupt the orderly arrangement of atoms in copperThis prevcnts the layers of pure metal (copper) atoms from sliding on one another easily.

4541

Lihat SebelahSULIT

l 0 (a) | 1 \Dtc to s tate

| (i) Sulphuric acidMg + HzSO+ --> MgSOa + H2

(ii) Able to draw an energy profile diagram that shows the following fiveinformation:

1. label of energy on vertical axis2.The position of the energy level of the reactant is higher than the

energy level ofthe product3. Correct position ol Ea4. Correct position oj E'a5. Correct position ol'AH

If cnergy level diagram given, not energy profile diagram, award pt1 and pt2o n l v l

Able to giu.

l. Reaction is exothermic2. The reactants contain moare energy than the products3. Heat given nout during bond formation is greater than heat

absorbed during bond breaking4- AH is the energy difference between the reactants and products5. Activation energy, Ea must be overcome in order for the reaction

to take place6. The use of catalyst reduces the activation energy

II

II

II

I

5

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(must correspond to the energy profile diagram, ,egott*catalysl increases the activation energy)

7. the use of catalyst increases the frequency of effective collisionbetween H' ion and magnesium atom(lr{eagative catalyst reduces the frequency of effective collisionbetween I{*and magnesium aLtom)

any five points'.

Note: If endothgrmic reaction; pts 1,2,3 lost(i) Able to calculate the average rate of reaition

1. volume divided by tirne2. Conect answer with the unit

Avarage rate of'rfeactiuon: 400 cm3200 s

: 2 c m 3 s - l

(12)

(ii) Able to explain the difference in the ruffifollowins

Information

l. The rate o1'reaction for Experiment II is higher/greater thanExperiment I

r: slowerfaster2. This is because sulphuric acid in Experiment II is

diprotic/dibasic acid3. Hydrochloric acid in Experiment I is monoprotic/monobasic

acid(Basicity of acid in Experiment II is higher than acid inExperiment I gives pts 2 and 3)

4. Diprotic acid has higher concentration of H* ion //monoproticacid has lower concentration of H* ion

a: more/higher number/less I{5. The frequency of collision between H* ion and magnesium in

Experiment II is higher than in Experiment U/The frequency ofcollision between H* ion and magnesium in Experiment I islower than in Experiment II

r: between particles

6. The frequency of effective collision in Experiment II ishigher/greater tharr in Experim ent lil The frequency of effectivecollision in Experriment i is lower/smaller than in Experiment II

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Quest ion E:rplanat ion Maximumscore

I (a)Ilble to state all the observations correctlyJ

Scrmple ens\1.)er :

Set Observation

II Potassium burns vigorously and produces white fume

I I I Eg4ilq burns rapidly and produces white fume

[Able lo state any one observotictns correctlvl L

[Able to state any one observatictns incompletelvl

e answer:

Potassium burns vigorously /i produces white fume.

Sodium burns rapidl // produces white fume.

fNo response given or wrong responsel 0

( 13 )

MARKING SCHEMB OF PAPER 3

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4541

Lihat SebelahSULIT

Qucst ion E:rplanation Maximumscore

I (b) [Able to state three variqbles and the way to control them correctryl

e answer:

Manip ulat'ed variable:

Type of alkali metals

Use different tlpe of alkali metals

Responding variable:

Reactivity of alkali metals

Observe the burning/reactivity ofalkali metals when react withoxygen gas.

Fixed variable:

Oxygen gas ll size of alkali metals

Use oxygen gas in eachexperiment llUse the same size ofmetals.

fAble to state any 5 of the above information correctlyl 5fAble to state any 4 of the above information corricttv I 4ffble to state any 3 of tbe above information correc'tlyl 3[4Qle to state any 2 of the above information c?rrectly J 2lAble to state any I oJ the above information correctlV I I[No response given or wrong responseJ 0

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Quest ion

(c)

Explanation

resportding variable vyith directjon correctlv/

Sample answer:

The lower the position of an alkali metal in the periodic Table, the morereactive it is when reacts with oxygen.

fuble to state the relationship between the manipulateclvoriable and theresponding variableJ

Santple answer:

The lower position of an alkali rnetal in the periodic Table. the morereactive is the metal.

lAhle lo state an idea of hypothcsisJ

Sample answer:

Alkali metal have different reactivity.

Maximumscore

I tvo response grven or wrong responseJ 0

(14) 4541

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Qucst ion Explanat ion

Santple answer'.

l. Lithium is the least reactive metal towards oxygen.

2. Lithium oxide is formed.

[Able lo state the inference but not completelyJ

Any one inference

lAble to state an idea of inferenceJ

Sample answer'.Reaction occurs

Maximumscore

I ( d )

2

l

Ilvo response gtven or wrong responseJ 0

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Qucst ion l0xplanat ion

fAble to arrange the position o"f all melals in clescendingreactivity correctly/

Sanp/e answer:

Potassium/K, Sodium,Na, Lithium/Li

order of

Maximumscore

(e)

rAUte r0 arrange the postlrcn oJ at reast fiuo metals in descending order ofreactit,ia correctlyJ

Sontple answer:P otass i um/K, S od ium/Na // Socli um/Na, Lithium/Li

-LAblL, to give an idea to urrang( the metalsf

Sample answer:Lithium/Li, Sodium/Na, potassium/K

I tvo response gwcn or wrong responseJ 0

( ls )

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4541

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Qucsl ion Explanation

oxygen correctly J

Sample answer:

I{ubidiurn burns more vigorously and produces white fume.

[Able to predict the observation for the reaction between rubidium ancloxygen J

Sample answer:

Rr-rbidium burns more vigorousl'y.

[Able to state an iclea to predi", ,rn oiruffirubidium and oxygen correctly JSample answer:

Tlre react ion is more react ive.

Maximumscore1(0

p,tro response given or wrong ,"tpont"j 0


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Quest ion Explanat ion N{aximumscore

L (eXi) IAble to record all the pII meter reading with one decimal placeucctrnttelyf .

Sctmple answer:

Set I : 13.2

Set I I ; 13 .6

Set I IL ' 13 .3

[Able to record any two readings accuratelyJOr

[Able to record all the pH meter reading without one decimal placecorrectlyl

2

IA.ble to record any one readings corectly]INo rasponse given or wrong re.rponsel 0

ULIT (16) 4541

Lihat SebelahSULIT

t-t,,

Quest ion Explanation Maximumscore

I (g)( i i ) Able to construct a table to record the pH value for set I, set Ii andSet III of experintent that contain:

l Correct titles2. pH values

Sample answer:

Set pH Value

I 13.2

I I 13.6

I I I 13.3

Able to construct tt tctble that contains thefollowing:

I. Titles

2. reading // ecf

2

Able to construct a table with at least one title/reading.INo re,sponse given or wrong responseJ 0

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Qucst iorr Exp lanat ion Maximumscore

I (g ) ( i i i )[Able to state the operational defnitionfor alkali correctly|

Sarnplc answer:

plJ value that is more than 7 when pH meter is dipped into a sorution.

[Able to ,state the operational dqftnitionfor alkali J

Sarnple answer:

pll value that is more than 7.

[Able to state an iclea of operational definition for alkati ]

Sample answer:

pI{ value that is 13.

lNo response given or wrong responsel 0

4541

Lihat SebelahSULIT

(17 )

Qucst ion Erplanat ion Maximumscore

l(g)( iv) [Able to classifi all the substances correctlyJ

Sample answer:

Strone alkali Weak alkaliSodium hydroxide solutionPotassium hydroxide; solution

Ammonia solution

[Able to classify any two substances correctlyla

fAble to classifi any one substance correctlyl[No response given or wrong response] 0

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KI(05 12

( i8 )


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U o state problem statementScore Explanation/Rubric

,4ntc to grvc ilre sratement oJ problem by relating thefollowing 4i rtfo rnt a t i o n c o r r e c t I y..

1. dffirent metals2. contact-1. electrolyte4. ru.sting

Response is in questionform:

Sample answer:How do/(Do) different type of metals / (metals X and y) in contact withiron in the presence of an electrolyte affect rusting of iron ? // what isthe effect on the rusting of iron, when it is in contact with other metals(metals X and Y) in the presence of an electrolvte?

Maximumscore

2 (n )

Able lo give the statement of prottlem"Response is in .questionform:

Sample answgf:I-low do different type of metals / (metars X and y) affect rusting?

Able to give an idea of statement of the problem.

S-llodq-atrsr{er:To investigate the effect of differont type of metals on rustins//Doeselectrolyte /X/YImetal affect iron rustins?

1\O rcsponse or wrong response. _ 0

KI(O5 202-To state all variablesScore Explanation/Rubric

,4ore ro statc all vartobles correclly:

Sample answer:Afanipulated variable: metal X and metal y // stating 2 metals which onemetal is less electropositive and one metal is more electropositive thaniron.l/pairs of X-Fe and Y-Fe

Responding variable: the rusting of iron l/ iron rusts or does not rust /lfany suitable observations: e.g. the formation of blue spot// the formationof pink colour // the formation of brown solidl

Maximumscore

2(b)

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ULIT ( le) 4541

Lihat SebelahSULIT

F'ixed variable: iron nail// electrolytei(named) ll agarljelly solution//te rnpe rature

Able lo state any two variables correctly.

Able to state any "r"

*r*U, *;

2

No resDonse or wr 0

KK051202-To state a hwothesisScore Explarration/Rubric Maximum

score2(c) Al:le to ,state the relationship betvveen the maniputated iariabk

""d th"

responding variable with direction correctly:

Sample answer:Metal Y causes iron nail rusting while metal X does not.// A moreelectropositive metal/(metal X) will prevent iron from rusting while aless electropositive metal (metal'f) will be rusting iron.

Able to state the relationship between the maniputot"d rorntt" ord th"responding variable:

S41rly'e ansl.ver:Metal Y speeds up iron nail rusting while metal X slows down rustinq.

Able lo state an idea of hypothesis:

Sample answer:Metal X /Y affect the rusting of iron.

No response or wrong response. 0

KI(05 203-list of materials and apparafus;Score Explanation/Rubric Maximum

score2(d) Able to give a bomplete list of materials and apparatus thai tn:,otves the

following:

l. iron nailsaJ

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2. I metal above iron in elec,trochemical series-1. I metal below iron in electrochemical series4. A suitable electrolyte, test-tubes, sand paper

Sample answer:Iron nails, magnesium/zinclaluminium strip, tinicopper/lead/silver strip,Iagar-agar solution t- potassium hexacyanofenate(III)so lution+phenolphthalein indicat.lrll lany suitable electrolyte]/[water],test-tubcs/boiling-tubes, sand paperAble to give a list of materials anc apparatus thot in otuet the fotto*tr,6-.

1. I metal above iron in electrochemical series2. I metal below iron in electrochemical series3. Any suitable electrolyte, any suitable container

Able to give a list of materials and apparatus thot tn oli"s th"fottowtng

1. I metal above/belovv iron in electrochemical series// anv suitableelectrolyte"

2. anv container

No response or

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(20 )

Kt(05 203-procedure of the experimentScore Explanation/Rubric Maximum

score2(e) Able to state thefollowing 6 steps:

l. [Clean the iron nails and metals strip with sand paperJ2. [Coil iron nails with the ntetalsJ-1. [Place iron nails in separate containerJ4. [Pour/add/fill the [named electrolyteJ into the containerf5. [Leave them asidefor several daysJ6. [Record your observationll

S+mple answer:1. clean iron nails, magnesium ribbon and copper strip with sand

paper.2. coil two iron nails tightly with magnesium ribbon and copper

str ip.3. Place all the iron nails in separate test tubes.4- Pour the hot agar containing potassium hexacyanofenate(Ill)

solution and phenolphthalein indicator into the test tubes.5. Keep the test tubes in a test tube rack and reave them aside for 3

days.6. Record your observations.

sPM (2009)- KIM|A

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END OF'MARKING SCEME


4541

Steps 2,4,6 2.

Step 2[coil iron nail with Mg/Cu], 4

INo response or wrong response. 0

KKO5202-To make tabulation of dataScore Explanation/Rubric Maximum

score2(0 Able to exhibit the tabulation of data that includes t'n lotto*tngfou,

informcttion.

l. IIeadingfor the manipulated t'ariables2. Examples of Sets//pair of meta'ls3. Headingfor responding variable4.2x3 or 3x2 table

Sample answer:

Set//pair of metalsI, II//Mg-Fe, Cu-Feobservation

Set//Pair of metals ObservationV/Me-FeIVlCu-Fe

Able to exhibit the tabulation of rlata that includes thefoltowing twoinformation.

l. l/3 from score 22. 2x2 table

Sample answer:

SeV/Pair of'metals Observation

No response or wrong response. 0


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