Kertas Percubaan Kimia Spm 2013 Kertas 1

8/10/2019 Kertas Percubaan Kimia Spm 2013 Kertas 1

1/23

1 Diagram 1 shows a graph of temperature against time represents the heating of

naphthalene powder.

Rajah 1 menunjukkan graf suhu melawan masa bagi pemanasan serbuk naftalena.

Diagram 1

Rajah 1

Which of the following statements is true?

Antara yang berikut, pernyataan manakah yang benar?

A

B

C

D

Exist as a liquid at P

Wujud sebagai cecair pada P

Heat is released at QHaba dibebaskan pada Q

The melting point is !o"

Takat lebur ialah !o"

The particles are #er$ closel$ pac%ed at &

Zarah-arah tersusun sangat rapat pada &

2 Diagram ' shows the set(up of the apparatus to determine the empirical formula of a metal

oxide.

Rajah 'menunjukkan susunan radas untuk menentukan f!rmula empirik suatu !ksida l!gam.

Diagram '

Rajah '

Time)t*s+

Temperature)T*o"+

!

P

Q&

H$drogen gas"as hidr!gen

,etal oxide#ksida l!gam


2/23

Which of the following metal oxides is suita-le to -e used in Diagram '?

Antara !ksida l!gam yang berikut, yang manakah sesuai digunakan dalam Rajah '$

A inc oxide

Zink !ksida

B "opper*//+ oxide

%uprum&''( !ksida

C ,agnesium oxide

)agnesium !ksida

D 0luminium oxide

Aluminium !ksida

3 Which of the following elements are in roup 1 in the Periodic Ta-le of Elements?

Antara unsur-unsur berikut yang manakah dalam kumpulan 1dalam *adual +erkala

nsur

A

B

C

D

Helium and neon

Helium dan ne!n

2ithium and magnesium

itium dan magnesium

H$drogen and helium

Hidr!gen dan helium

3odium and potassiumatrium dan kalium

4 Diagram 4 shows the electron arrangement of a compound -etween atom P and atom Q.

Rajah 4menujukkan sususun elektr!n bagi sebatian yang terbentuk antara at!m / dan

at!m 0.


3/23

Diagram 4

Rajah 4

The compound formed

1ebatian yang terbentuk

A

B

C

D

is a co#alent compound

merupakan sebatian k!2alen

has a high melting ponit

mempunyai takat lebur yang tinggi

conducts electricit$

mengalirkan arus elektrik

is solu-le in water

larut dalam air

5 Diagram 5 shows a chemical cell.

Rajah5menunjukkan satu sel kimia.

Diagram 5

Rajah 5

The -ul- in Diagram 5 do not light up. This is -ecause

)ent!l dalam Rajah 5tidak menyala. 'ni disebabkan !leh

A

B

H$drogen chloride exist as molecules

Hidr!gen kl!rida wujud sebagai m!lekul

The electrode used is not a metal

H$drogen chloride in tetrachloromethane

Hidr!gen kl!rida di dalam tetrakl!r!metana

"ar-on rod

R!d karb!n

"ar-on rod

R!d karb!n


4/23

C

D

3lektr!d yang digunakan bukan suatu l!gam

H$drogen ions and chloride ions mo#e freel$

'!n hidr!gen dan i!n kl!rida bergerak bebas

H$drogen

ions and chloride ions are discharged'!n hidr!gen dan i!n kl!rida dinyahcaskan.

6 Which of the following is true a-out an al%ali?

Antara pernyataan berikut yang manakah benar tentang alkali$

A 0n al%ali is not corrosi#e

Alkali tidak mengkakis

B 0 strong al%ali has a low pH #alueAlkali kuat mempunyai nilai pH yang rendah

C 0n al%ali is a -ase that is solu-le in water

Alkali ialah bes yang larut dalam air

D 0 wea% al%ali has a high degree of ioni6ation

Alkali lemah mempunyai kadar pengi!nan yang tinggi

7 "opper*//+ chloride salt can -e prepared -$ mixing h$drochloric acid and

"aram kuprum&''( kl!rida b!leh disediakan dengan mencampurkan asid hidr!kl!rik

dan

A

B

C

D

"opper

%uprum

"opper*//+ nitrate

%uprum&''( nitrat

"opper*//+ car-onate

%uprum&''( karb!nat

"opper*//+ sulphate

%uprum&''( sulfat

8 During the manufacturing of sulphuric acid) sulphur dioxide is oxidised to sulphur

trioxide.

4i dalam pembuatan asid sulfurik, sulfur di!ksidakan kepada sulfur tri!ksida.

2SO2 + O2 2SO3The reaction is catal$sed -$


5/23

Tindak balas ini memerlukan mangkin

A

B

C

D

Platinum

/latinum

7anadium*7+ oxide

5anadium&5( !ksida

,anganese*/7+ oxide

)angan&'5( !ksida

/ron

6erum

9 Diagram 8 shows four sets of apparatus to in#estigate the rate of reaction .

Rajah8di bawah menunjukkan empat set radas untuk mengkaji kadar tindak balas.

8cm of magnesium ri--on

8 cm pita magnesium

Set I Set II Set III Set IV

Diagram 8

Rajah 8

Which of the following set of apparatus shows the magnesium ri--on disappears faster?

Antara set radas yang berikut, yang manakah menunjukkan pita magnesium hilang

paling cepat?

A

B

C

D

3et /

3et //

3et ///

3et /7

1!! cm4of

9itric acid

' mol dm(4

1!! cm4

asid nitrik

' mol dm(4

1!! cm4of

3ulphuric acid

' mol dm(4

1!! cm4

asid sulfurik' mol dm(4

1!! cm4of

Ethanoic acid

' mol dm(4

1!! cm4

asid etan!ik' mol dm(4

'!! cm4of

nitric acid

1 mol dm(4

'!! cm4

asid nitrik1 mol dm(4


6/23

10 Which of the following pairs of general formulae and homologue series is correct?

Antara pasangan f!rmula am dan siri h!m!l!g berikut, $ang manakah betul$

A

General formla

Formula am

!omolo"e #er$e#

Siri homolog

"nH'n 0l%ane

Alkana

"nH'n:' 0l%eneAlkena

"nH'n:1;H 0lcohol

Alc!h!l

"nH'n:1";;H Ester

3ster

11 Diagram 4 shows a set(up of apparatus of a redox reaction.

Rajah 7 menunjukkan susunan radas suatu tindak balas red!ks.

Diagram 4

Rajah 7

Which of these statements are not %orre%t?

Antara penyataan berikut yang manakah tidak benar$

A Electron flows from electrode P to Q

3lektr!n mengalir dari elektr!d / ke 0

B /ron*//+ ions act as the reducing agent and is oxidi6ed'!n 6erum&''( bertindak sebagai agen penurunan dan di!ksidakan

G

0cidified potassium manganate *7//+ solutionarutan kalium manganat &5''( berasid

3ulphuric acidAsid sulfurik

/ron *//+ sulphate

6erum &''( sulfat

& '"ar-on electrodes

3lektr!d karb!n


7/23

C 0cidified potassium manganate *7//+ solution turns colourless

Warna larutan kalium manganat &5''( berasid bertukar menjadi tidak berwarna

D ,anganate *7//+ ion) ,n;5(acts as the reducing agent and is reduced

'!n manganat &5''(, )n#8-bertindak sebagai agen penurunan dan diturunkan

12 Which of the following reaction causes the -ea%er to -ecome hot?

Antara tindak-tindak balas yang berikut, yang manakah menyebabkan bikar

menjadi panas$

A 0dding water to solid ammonium nitrate

)enambahkan air kepada pepejal amm!nium nitrat

B 0dding water to solid sodium h$droxide

)enambahkan air kepada pepejal natrium hidr!ksida

C 0dding water to solid potassium nitrate)enambahkan air kepada pepejal kalium nitrat

D 0dding water to solid ammonium sulphate

)enambahkan air kepada pepejal amm!nium sulfat

13

What t$pe of medicine is paracetamol?

Apakah jenis ubat parasetam!l?

A 0nalgesic

Analgesik

B 0nti-iotic

Antibi!tik

C Ps$chotherapeutic

/sik!teraputik

D 0ntips$chotic

Antipsik!tik

14

'..8

1usunan elektr!n : ;. 1

+ilangan neutr!n : >?


8/23

A 48

B 44

C 41

D 4!

15 The mass of one atom of element = is two times more than an atom of ox$gen. What is

the relati#e atomic mass of element =? @&elati#e atomic massA ; > 1+

*isim > at!m unsur 9 adalah dua kali lebih berat dari satu at!m !ksigen. +erapakah jisim

at!m relatif bagi unsur 9$ @*isim at!m relatif # : >?(

A 1'

B '5

C 4'

D 4

16 Diagram 5 shows the s$m-ol of an element B .

Rajah 8 menunjukkan simb!l unsur *.

Diagram 5

Rajah 8

The position of element B in the Periodic Ta-le is

%edudukan unsur * dalam *adual +erkala adalah

Period

%ala

roup

%umpulan

A ' 1C

B 4 1C

C ' 1

D 4 1

17 Element is located in roup 15 of the Periodic Ta-le. Element = has a proton num-er of

1C. Which of the following shows the formula and t$pe of compound formed when

element com-ines with element =?

nsur B terletak di %umpulan >8 dalam *adual +erkala. nsur 9 mempunyai n!mb!r

pr!t!n >C. Antara berikut yang manakah menunjukkan f!rmula dan jenis sebatian yang

terbentuk apabila unsur B berpadu dengan unsur 9$

ormula

6!rmula

T$pe of "ompound

*enis 1ebatian

A =' /onic

'!nik

B19

9


9/23

B 5= "o#alent

%!2alen

C = /onic

'!nik

D =5 "o#alent

%!2alen

18 "hoose the correct function of food additi#es.

/ilih fungsi bahan tambah makanan yang betul.

ood additi#e

+ahan tambah makanan

unction

6ungsi

A 3ta-ilisers

/enstabil

To pre#ent the sta-ili6ation of food

ntuk menghalang penstabilan makanan

B Preser#ati#es

5+

+erapakah jisim kuprum yang dihasilkan apabila ink yang berlebihan ditambahkan

ke dalam ;= cm7D.; m!l dm-7larutan kuprum&''( sulfat$ @*isim at!m relatif Eu :?8(

A !.1 g

B !.4' g

C !.C8 g

D 1.C! g 2ime waterHeat

B


10/23

Apabila * dipanaskan, air kap!r menjadi keruh.

Antara sebatian berikut yang manakah mungkin *$

A

B

C

D

Potassium %ar-onate

%alium karb!nat

"alcium nitrate

%alsium nitrat

3odium car-onate

atrium karb!nat

2ead*//+ car-onate

/lumbum&''( karb!nat

22 Which of the following su-stances can -e used to differentiate ethane and ethene?

Antara bahan berikut, yang manakah b!leh digunakan untuk membeakan antara etana dan etena?

A 2ime water

Air kapur

B


11/23

23 Ta-le 1 shows the mixture of 6inc car-onate and h$drochloric acid used in experiments to stud$

the rate of reaction.

Badual 1 menunGu%%ancampuran ink karb!nat dengan asid hidr!kl!rik yang digunakan dalam

eksperimen untuk mengkaji kadar tindak balas .

()*er$ment

Eksperimen

$n% %ar,onate

zink karbonat

!-.ro%/lor$% a%$. !Cl

Asid hidroklorik

a## "

Jisim (g)

&/-#$%al

form

Bentuk

fizikal

Volme

Isipadu

%m3

Con%entrat$on

Kepekatan

mol .m3

/ 8ranule

+utiran8! !.1

// 8

Powder

1erbuk

'8 !.'

Ta-le 1 *adual

Which of the following graphs represent the two experiments?

Antara graf berikut, yang manakah mewakili kedua-dua eksperimen itu?

A B

C D

7olume of ";'cm4

'sipadu";'cm4

7olume of ";'cm4

'sipadu";'cm4

7olume of ";'cm4

'sipadu";'cm4

7olume of ";'cm4

'sipadu";'cm4

Times

)asaFs

Times

)asaFs

Times

)asaFs

Times

)asaFs

/// /

//

/

//

///


12/23

24 The heat of neutralisation -etween h$drochloric acid and sodium h$droxide solution is higher

than the heat of neutralisation -etween ethanoic acid and sodium h$droxide solution -ecause

Haba peneutralan antara asid hidr!kl!rik dan larutan natrium hidr!ksida adalah lebih tinggi

berbanding haba peneutralan antara asid etan!ik dan larutan natrium hidr!ksida kerana

A

energ$ is needed to ionise the ethanoic acid.

tenaga diperlukan untuk mengi!nkan asid etan!ik

B

the reaction -etween ethanoic acid and sodium h$droxide solution is incomplete.

tindak balas antara asid ethan!ik dan larutan natrium hidr!Gida adalah tidak lengkap

C

h$drochloric acid is a mineral acid whereas ethanoic acid is an organic acid.

asid hidr!kl!rik adalah asid mineral manakala asid etan!ik adalah asid !rganic

D

D

h$drochloric acid and ethanoic acid ha#e different pH #alues.

asid hidr!kl!rik dan asid etan!ik mempunyai nilai pH yang berbea.

25 Wh$ are detergents more effecti#e than soap?

)engapakah detergen lebih berkesan daripada sabun?

A Detergents are -iodegrada-le whereas soaps are non(-iodegrada-le.

4etergen b!leh terurai manakala sabun tidak terurai

.

B Detergents reduce the surface tension of water whereas soaps do not.

4etergen mengurangkan ketegangan permukaan air manakala sabun tidak.

C Detergents are solu-le in grease) whereas soaps are insolu-le in grease.4etergen larut dalam gris, manakala sabun tidak larut dalam gris.

D Detergents do not form scum in hard water) whereas soaps form scum in hard water.

4etergen tidak membentuk kekat dalam air liat manakala sabun membentuk kekat dalam air liat.

26 Diagram 1! shows the set up of an experimen to in#estigate transfer of electrons at a distance

Rajah1! menunjukkan susunan radas bagi mengkaji pemindahan elektr!n pada suatu jarak

Diagram 1!

Rajah >D

Which of the following statements are true?

Antara pernyataan berikut yang manakah benar$

/


13/23

//

///

/7

+r!min bertindak sebagai agen peng!ksida

"olourless solution change to -rown at car-on =

arutan tanpa warna berubah kepada perang di karb!n 9

Electrons flow from car-on = to car-on through the outer circuit

3lektr!n mengalir dari karb!n 9 ke karb!n B melalui litarluar

;xidation num-er of iodine changes from ! to (1

!mb!r peng!ksidaan i!din berubah daripada D kepada ->

A

B

C

D

/ and // onl$

/ dan//sahaja

/// and /7 onl$

/// dan/7sahaja

/) // and /// onl$/) // dan///sahaja

/) //) /// and /7

/) //) /// dan/7

27 Which of the following pairs of ion has the same of num-er of electrons?

@Proton num-erA 2i > 4 ) ; > ) > F ) 9a > 11 ) ,g > 1' ) "l > 1C ) "a > '! I

Antara pasangan i!n yang berikut, yang manakah mempunyai bilangan elektr!n yang sama?

@!mb!r /r!t!nA 2i > 4 ) ; > ) > F ) 9a > 11 ) ,g > 1' ) "l > 1C ) "a > '! I

A

B

C

D

"l(

and (

"l( dan(

9a:and 2i:

9a:dan2i:

"a':and ,g':

"a':dan,g':

,g':and ;'(

,g':dan;'(

28 Ta-le ' shows information a-out two t$pes of elements.

*adual 'menunjukkan maklumat bagi dua jenis unsur.

Element

nsur

Proton num-er

!mb!r pr!t!n

Electron configuration

1usunan elektr!n

=

F

1C

'.

'..

Ta-le '

*adual ;


14/23

A /nert gases

"as nadir

B 9egati#e ions

'!n negatif

C 0toms of metals

At!m l!gam

D /sotopes of the same element

's!t!p unsur yang sama

29 Diagram 11 shows the s$m-ols for two elements.

The letters used are not the actual s$m-ol of the elements

Rajah 11menunjukkan simb!l bagi dua unsur

Huruf yang digunakan bukan simb!l sebenar unsur itu

Diagram 11

Rajah11

Which of the following is true a-out B and ,?

Antara berikut yang manakah benar tentang * dan )$

A

B

C

D

0tomic si6e of B is larger than ,1ai at!m * lebih besar daripada )


15/23

31 The diagram -elow shows the set(up of the apparatus for electrol$sis of concentrated

solution of sodium chloride

What is the product formed at the anode and cathode?

0node "athode

A ;' H'B "l' H'C "l' 9a

D ;' "l'

32 The diagram -elow shows 8 steps for preparing a standard solution of sodium h$droxide)

9a;H -ut not in correct order.

Which of the following steps is correct?

A

B

CD

Q) 3) P) &) T

&) Q) 3) P) T

Q) P) 3) &) T&) Q) 3) T) P

33 The diagram -elow shows the test tu-es containing lead*//+ nitrate solution and

potassium car-onate solution -ut without a la-el. Which of the following solutions can

-e used to distinguish -oth solutions?

P( Transfer the solid sodium h$droxide into #olume into the #olumetric flas%.Q( Weigh the mass of sodium h$droxide&( 0dd distilled water until the graduation mar%.3( &inse the weighing -ottle and pour the solution into the #olumetric flas%.T( 3ha%e the #olumetric flas%.


16/23

/

//

///

/7

A

B

CD

3odium nitrate

3odium iodide

Dilute nitric acid

Potassium sulphate

/ and // onl$

// and /7 onl$

//) /// and /7 onl$/) //) /// and /7

34 Which of the following is the alcohol produced from the al%aline h$drol$sis of oil?

A

B

C

D

Ethane(1)'(diol

l$cerol

"$clohexanol


17/23

B

C

D

!.'8 cm4s

!.1C cm4s

!.14 cm4s

36 When a mixture of '(-utanol) "H4"H;H"H'"H4and concentrated sulphuric acid is

heated) gas is produced. Which of the following is the molecular structure of ?

A

B

C

D

"H4"H>"H"H4"H4"H>"*"H4+'*"H4+'"H"H>"H'"H4"H'"H>"H'

37 The diagram -elow shows the changes of the sulphur in "ontact Process.

3 3;' 3;4 H'3';C

Which of the following are the correct changes in the oxidation state of sulphur?

A

B

C

D

! :5 : :

! :5 : :C

1 :4 : :

1 :5 : :

38 The following equation shows the formation of water

H'*g+ : J ;'*g+ K H';*l+ ) LH > M 'C %BmolNO

Which of the following is true regarding the a-o#e equation?

A

B

C

D

0cti#ation energ$ for the reaction is high

/f 1 mole of ox$gen reacts 8C5 %B of heat energ$ is a-sor-ed

"om-ustion of 1 mole of h$drogen releases 'C %B of heat energ$

1 mole of water that is formed in the reaction recei#ed 'C %B heat energ$

39

Which of the following medicines is most appropriate in treating the a-o#e s$mptoms or

disorders?

A

B

C

D

"hlorproma6ine

0mphetamine

Tranquilisers


18/23

40 Which of the following isotopes is used to detect lea%age in a gas pipe.

.

A

B

C

D

"ar-on 15

"o-alt !

3odium '5

/odine 141

51. Diagram 15 shows the energ$ le#el diagram of the displacement reaction -etween magnesium

and iron*//+ chloride solution.

Rajah >8 menunjukkan gambar rajah aras tenaga bagi tindak balas penyesaran antara

magnesium dan larutan ferum&''( sulfat.

What is the increase in temperature if 8! cm4 of !.'8 mol dm(4iron*//+ chloride solution is

reacted with excess magnesium)?

+erapakah kenaikan suhu, jika =D cm7 D.;= m!l dm-7larutan ferum&'''( kl!rida ditindak

balaskan dengan berlebihan magnesium $

@3pecific heat capacit$ of the solution > 5.' B g (1 o"(1I

@)uatan haba tentu larutan> 5.' B g(1 o"(1I

0 1'o"

< 1o"

" ''o"

D '5o"

5'. Ta-le 4 shows the results of an experiment for three chemical cells P) Q and &.

*adual 7 menunjukkan keputusan eksperimen bagi tiga sel kimia /, 0 dan R.

C/em$%al %ell

Sel kimia

&a$r# of metal#

Pasangan logam

Volta"e V

oltan V

e"at$e term$nal

!erminal negatif

P = !.58

Q !.!

& = 1.!8

Ta-le 4

*adual 7

Energ$

,g*s+ : e"l'*aq+

e*s+ : ,g"l'*aq+

H> ( '!1. %Bmol(1

Diagram 15

Rajah >8

Tenaga


19/23

Which of the following arrangements of metals ) = and is in descending order of

electropositi#it$ in the electrochemical series?

Antara berikut yang manakah susunan l!gam B,9 dan Z mengikut tertib elektr!p!sitif

menurun dalam siri elektr!kimia$

0 ) ) =

< ) =)

" ) =)

D ) ) =

54. Diagram 18 shows cur#e W o-tained from the decomposition of '! cm4of !.5! mol dm(4

h$drogen peroxide solution) H';') using !.' g of manganese */7+ oxide as catal$st at a

temperature of 4! !".

&ajah >= menunjukkan lengkung W terbentuk daripada penguraian ;D cm7larutan hidr!gen

per!ksida D.8D m!l dm-7, di mangkinkan !leh mangan&'5( !ksida pada suhu 7DDE.

Diagram 18

Rajah >=

Which of the following experiments will produce cur#e ?

Antara eksperimen berikut yang manakah akan menghasilkan lengkung B$

7olume of H';' cm4

'sipadu H;#;Fcm7

"oncentration of H';' mol dm(4

%epekatan H;#;Fm!l dm-7

Temperature !"1uhu F DE

0 1! !.! 4!

< 18 !.'! 4!

" '! !.! 5!

D 4! !.4! 5!

55. Ta-le 5 shows the melting and -oiling points of su-stances P) Q) & and 3..*adual 8 menunjukkan takat lebur dan takat didih untuk bahan /, 0, R dan 1..

3u-stance

+ahan

,elting point !"

Takat lebur F DE


20/23

Which of the following su-stances has the highest %inetic energ$ at room temperature?

Antara bahan berikut yang manakah mempunyai tenaga kinetic yang paling tinggi pada suhu

bilik$

0 P

< Q

" &

D 3

58. The following equation shows the complete com-ustion of propene gas.

/ersamaan berikut menunjukkan pembakaran gas pr!pene

"4H*g+ : F' ;'*g+ K 4";'*g+ : 4H';*g+

Which of the following statements are true when 1 mol of propene gas is -urnt completel$$

@&elati#e molecular mass A "4H >5') ;'>4') ";'>55) H';> 1) ,olar #olume of gas is

''.5 dm4mol 1 at 3.T.P.I

9ang manakah antara pernyataan berikut adalah benar apabila > m!l gas pr!pene terbakar

secara lengkap$@*isim m!lekul relatif "4H>55) ;'>4') ";'>55) H';> 1) 'si padu m!lar gas ;;.8 dm

7

m!l >pada 1.T./.I

/ "omplete com-ustion of !.1 mol of propene produces 8.5 g of water

/embakaran lengkap D.> m!l gas pr!pena menghasilkan =.8 g air

// "omplete com-ustion of 1 mol of propene gas produces ' mol of water/embakaran

lengkap > m!l gas pr!pene menghasilkan ; m!l air

/// "omplete com-ustion of 5.' g of propene requires 15.5 g of ox$gen.

/embakaran lengkap 8.; g gas pr!pena memerlukan >8.8 g gas !ksigen

/7 "omplete com-ustion of !.1 mol of propene produces .C' dm4car-on dioxide gas ats.t.p.

/embakaran lengkap D.> m!l pr!pena akan menghasilkan ?.C; dm7gas karb!n

di!ksida pada s.t.p

0 / and // onl$

< / and /7 onl$

" // and /7 onl$

D /) /// and /7

5. 0mmonium sulphate) *9H5+'3;5is an example of a fertili6er.

"alculate the percentage of nitrogen in 1 mole of ammonium sulphate.

@&elati#e atomic massA 9>15) H>1) 3>)4') ;>1I

Amm!nium sulfat,*9H5+'3;5adalah satu c!nt!h baja.

Hitungkan peratus nitr!gen dalam > m!l amm!nium sulfat.

@*isim at!m relatifA 9>15) H>1) 3>)4') ;>1I

0 1'.1' R

< '1.'1 R

" '4.'4 R

D 41.41 R


21/23

5C. Diagram 1 shows the preparation of lead*//+ chloride salt.

Rajah >? menunjukkan persediaan garam plumbum&''( kl!rida.

Diagram 1

Rajah >?

What is the concentration of the h$drochloric acid needed to react completel$ with

lead*//+ nitrate solution?

+erapakah kepekatan larutan asid hidr!kl!rik yang diperlukan untuk bertindak balas lengkap

dengan larutan plumbum&''( nitrat?

0 !.8 mol dm(4

< 1.! mol dm(4

" 1.8 mol dm(4

D '.! mol dm(4

5. Which of the following food additi#es can -e used to ma%e food sta$ fresh longer and taste

-etter?Antara bahan tambah makanan berikut yang manakah b!leh digunakan untuk mengekalkan

kesegaran makanan dan meningkatkan rasanya$

0 3odium -en6oate and tartra6ine

atrium ben!at dan tartraina

< 3odium -en6oate and ascor-ic acid

atrium ben!at dan asid ask!rbik

" ,onosodium glutamate and tartra6ine

)!n!natrium glutamat dan tartraina

D 0scor-ic acid and monosodium glutamate

Asid ask!rbik dan m!n!natrium glutamat

8! cm4of

1.! mol dm(4

lead*//+ nitrate

solution

=D cm7

>.D m!l dm-7

larutan

plumbum&''(

nitrat s!luti!n

8! cm4of

h$drochloric

acid

=D cm7

asid

hidr!kl!rik

:White

precipitate

)endakan

putih


22/23

5F Diagram 1C shows the process to produce compound B.

Rajah >C menunjukkan pr!ses menghasilkan sebatian *.

:

Diagram 1C

Rajah >C

Which of the following structural formulas is of compound B?Antara f!rmula struktur yang manakah bagi sebatian *$

0

" ;xidation num-er of manganese increases from :' to :C

!mb!r peng!ksidaan mangan bertambah dari J ; ke JC

D Electrons flow from potassium iodide solution to acidified potassium manganate*7//+

through sulphuric acid

3lektr!n mengalir dari larutan kalium i!dida ke larutan kalium mangnanat&5''(

berasid melalui asid sulfurik

(D O '(SIO &A&(:

KE"!AS S#A$A% !A&A!

0cidified potassium

manganate*7//+ solution

arutan kalium

manganat&5''( berasid

"ar-on electrode

3lektr!d karb!n

Dilute sulphuric acid

Asid sulfurik cair

Potassium iodide

solution

arutan kalium

i!dida

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Kertas Percubaan Kimia Spm 2013 Kertas 1