Voco Onthitnthpt

7/31/2019 Voco Onthitnthpt

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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010

Phn 1-KIN THC TRNG TMA. I CNG V KIM LOI

I. TNH CHT VT L * Tnh cht vt l chung ca kim loi (do cc e t do trong kim loigy ra): Tnh do, tnh dn in, dn nhit, tnh nh kim

* Nhit cng cao th tnh dn in ca kim loi cng gim* Tnh cht vt l khc: khi lng ring, nhit nng chy, tnh

cng - khi lng ring ln nht: Os, nh nht: Li- nhit nng chy ln nht W, nh nht Hg- kim loi cng nht l Cr, mm nht l kim loi kim

II. TNH CHT HA HC CHUNG CA KIM LOI: Tnh kh (kim loi d b oxi ha)1. Tc dng vi phi kim: 2Fe + 3Cl2

ot 2FeCl3 Cu + Cl2 ot CuCl2

4Al + 3O2 ot 2Al2O3 3Fe + 2O2

ot Fe3O4

Fe + S ot FeS Hg + S ------> HgS

2. Tc dng vi dung dch axit:* Vi dung dch axit HCl , H2SO4 long: (tr cc kim loi Cu , Ag , Hg , Au khng c phn ng)

sn phm l mui v kh H2. Th d: Fe + 2HCl FeCl2 + H2* Vi dung dch HNO3 , H2SO4 c: (tr Pt , Au khng phn ng)

sn phm l mui + sn phm kh + nc.

Th d: 3Cu + 8HNO3 (long) ot 3Cu(NO3)2 + 2NO + 4H2O

Fe + 4HNO3 (long) ot Fe(NO3)3 + NO + 2H2O

Cu + 2H2SO4 (c) ot CuSO4 + SO2 + 2H2O

Ch : HNO3 , H2SO4 c ngui khng phn ng vi cc kim loi Al , Fe, Cr 3. Tc dng vi nc: cc kim loi Li , K , Ba , Ca , Na phn ng c vi nc nhit

thng to baz v kh H2 Th d: 2Na + 2H2O 2NaOH + H2

4. Tc dng vi dung dch mui: kim loi mnh hn kh ion ca kim loi yu hn trong dungdch mui thnh kim loi t do. Th d: Fe + CuSO4 FeSO4 + Cu* i vi kim loi tan trong nc th khng kh ion kim loi khc trong dd mui m kh H 2O

2Na + 2H2O + CuSO4 Cu(OH)2 + Na2SO4 + H2

6Na + 6H2O + 2FeCl3 2Fe(OH)3 + 6NaCl +3 H25. Tc dng vi dung dch kim (Al, Zn)

2Al + 2NaOH + 2H2O 2NaAlO2 + 3H2Zn + 2NaOH Na2ZnO2 + H2

III. DY IN HA CA KIM LOIa. Dy in ha ca kim loi:

K+ Ba2+ Ca2+ Na+ Mg2+ Al3+ Zn2+ Fe2+ Ni2+ Sn2+ Pb2+ H Cu2+Fe3+ Ag+ Au

Tnh oxi ha ca ion kim loi tng dnK Ba Ca Na Mg Al Zn Fe Ni Sn Pb H2 Cu Fe2+ Ag Au

Tnh kh ca kim loi gim dnb. ngha ca dy in ha:

D on chiu ca phn ng gia 2 cp oxi ha Fe2+ Cu2+

Cu2+ + Fe Fe2+ + Cu Fe Cu

Oxh mnh kh mnh oxh yu kh yuIV. N MN KIM LOI1. Khi nim: S n mn kim loi l s ph hy kim loi hoc hp kim do tc dng ca cc cht trong mitrng xung quanh.(kim loi mt i nhng tnh cht qu bo v b oxi ha thnh ion dng)

Ti liu lu hnh ni b Trang - 1 -


2/38

dd muoi Cl-, SO4

2-,NO3

-

kim loai TB, yeu

ieu

chepp ien phandung dch

kim loai manh

ieuche

pp ien phannong chay

MCl, MOHNhom IA

pnc

MCl2Nhom IIA

pnc

Al2O

3Al

pnc

Trng THPT L Thanh Hin T Ha n thi tt nghip 2010M ----> Mn+ + ne

2. Cc dng n mn kim loi:n mn ha hc n mn in ha

Khi nimL s ph hy ca kim loi

Do kim loi tip xc vi cht khhoc hi nc nhit cao

Do kim loi tip xc vi dung dch cht in lisinh ra dng in

Mt s th d - t Fe trong bnh ng kh Cl2,O2, H2O- Ngm kim loi trong dd axit

- Vt bng gang, thp trong khng kh m- V tu chm trong nc bin- ng dn trong lng t

Bn cht L qu trnh oxi ha kh, trong e t do chuyn trc tip sangmi trng

L qu trnh oxi ha kh xy ra trn b mtcc in cc* Cc m (catot - kim loi c tnh khmnh): xy ra qu trnh oxi ha kim loi

M Mn+ + n e* Cc dng (anot) xy ra qu trnh kh2H+ +2e H2 (mi trng in li l axit)O2 + 2H2O + 4e 4OH- (mi trng in

li l baz, trung tnh, khng kh m)3. Chng n mn kim loi:

a. Phng php bo v b mt:b. Phng php in ha:Ni kim loi cn bo v vi mt kim loi c tnh kh mnh hn. Th

d: bo v v tu bin lm bng thp ngi ta gn vo nhng mt ngoi ca v tu (phn chm dinc) nhng l km (Zn).V. IU CH KIM LOI


pp thuyluyen

ieu chekim loai yeu

dd muoi + kl manh hn (k

0

tantrong nc)

ieuchepp nhiet

luyen

+ chat kh (C, CO, Al,H2), t0caooxit

kim loai TB,yeu


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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010

Lu i vi in phn dung dch* in phn dung dch mui clorua:- ca kim loi mnh (NaCl, KCl, CaCl2, BaCl2,..) co mang ngan baz + H2 + Cl2- ca kim loi yu (CuCl2,...) kim loi + Cl2 (c pH > 7)

* in phn dung dch mui nitrat, mui sunfat:- ca kim loi yu, trung bnh (Pb(NO3)2, CuSO4, Cu(NO3)2, AgNO3,...) kim loi + axit + O2( c pH < 7)

Khi lng dung dch gim = khi lng kim loi + khi lng kh thot ra- ca kim loi mnh (K2SO4, NaNO3,...): mui khng tham gia in phn m chnh l H2O b in phn

2H2O 2H2 + O2* in phn dung dch baz mnh (KOH, NaOH,...) cng chnh l s in phn ca H 2O* Vn dng nh lut Faraday tm khi lng cc cht thu c cc in cc

AItm=

nFtrong m l khi lng cht thu c in cc (g)

A l khi lng mol nguyn t ca cht thu c in ccn l s e m nguyn t hoc ion cho hoc nhnI l cng dng in (ampe)t l thi gian in phn F l hng s Faraday (F=96500)

B. KIN THC V KIM LOI KIM& HP CHT CA KIM LOI KIMI. KIM LOI KIM a) Cu to & tnh cht vt l: T Li n Cs

- S e ngoi cng u bng 1 - Bn knh tng- cng gim (kim loi mm nht l Cs)- Nhit nng chy, nhit si, khi lng ring thp v gim dn (v kim loi

kim c mng tinh th lp phng tm khi, cu trc tng i rng, mt khc trong tinh th cc nguyn tv ion lin kt vi nhau bng lin kt kim loi)

b)Tnh cht ho hc: Tnh kh tng, kh nng tan trong nc tng dn t Li n Csc) iu ch: phng php: in phn nng chy mui halogenua MX hoc hirxit MOH2MX pnc 2M + X2 4MOH pnc 4M + O2 + 2H2O

* Lu : - khi cho Na vo dung dch CuSO4: hin tng si bt kh v c kt ta xanh xut hin- khi cho Na vo dung dch FeCl3: hin tng si bt kh v c kt ta nu xut hin

2Na + 2H2O + CuSO4 Cu(OH)2 + Na2SO4 + H2

6Na + 6H2O + 2FeCl3 2Fe(OH)3 + 6NaCl +3 H2II. HP CHT QUAN TRNG CA KIM LOI KIM1. NaOH: (xt n da) - cht rn, khng mu, d nng chy, d ht m, tan nhiu trong nc

- tc dng vi baz, oxit baz, mt s mui (CuSO4, FeCl3,...)

NaOH + CO2 NaHCO3

2NaOH + CO2 Na2CO3 + H2O* T=1 to mui NaHCO3* T=2 to mui Na2CO3* T2 to mui Na2CO3 sn phm gm Na2CO3 v NaOH d* 1


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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010* tc dng vi axit* tc dng vi baz (NaOH, KOH)

* tc dng vi axit* * khng tc dng vi baz (NaOH, KOH)

4. KNO3 - B phn hu thnh KNO2 & O2- Dng lm thuc n ( 68% KNO3, 15%S & 17% C)

2KNO3 + 3C + S0

t N2 + 3CO2 + K2SC. KIN THC V KIM LOI KIM TH& HP CHT CA CANXI

I. KIM LOI KIM TH1) T Be, Mg, Ca, Sr, Ba: - Tnh kh tng, nng lng ion ho gim- Kh nng phn ng vi H2O tng:

*Be khng phn ng vi H2O* Mg phn ng rt chm nhit thng, nhng phn ng mnh lit nhit cao* Ca, Sr, Ba phn ng ngay t0 thng

- Nhit nng chy, nhit si, khi lng ring bin i khng theo mtquy lut do kim loi kim th c kiu mng tinh th khc nhau

2) Mt s hin tng cn lu - Cho t t kh CO2 (n d) vo dung dch nc vi trong Ca(OH)2: xut hin kt ta

trng, kt ta tan trong CO2 d

- Cho t t kh CO2 (n d) vo dung dch nc vi trong Ca(OH)2, ri un nng: xuthin kt ta trng, kt ta tan trong CO2 d, khi nung nng li xut hin kt ta.

- Cho Ca(OH)2 vo dung dch Ca(HCO3)2: xut hin kt ta trng3) iu ch kim loi kim th: Dng phng php in phn nng chy hp cht mui clorua MCl24) Nc cng

D. KIN THC V KIM LOI NHM & HP CHT CA NHM

I. KIM LOI Al1) Tnh cht: - Al l kim loi c tnh kh mnh Al Al3+ + 3e- Al bn trong khng kh, bn trong nc do c lp Al2O3 rt mng, mn, bn

chc, ngn khng cho nc, kh thm qua- Al khng phn ng vi HNO3 c ngui, H2SO4 c ngui- Trn l thuyt c phn ng 2Al + 6H2O 2Al(OH)3 + 3H2, nhng

khngs dng khi tnh ton v phn ng trn nhanh chng dng li do to Al(OH) 3 l cht kt ta keo- Al tc dng vi dung dch NaOH:

2Al + 2NaOH + 2H2O 2NaAlO2 + 3H2 Al l cht kh, H2O l cht oxi ho- Al tan trong dung dch axit, tan trong dung dch kim nhng khngc

gi l kim loi (cht) lng tnh

- Phn ng nhit nhm l phn ng dng kim loi nhm kh nhng ionkim loi (sau nhm) trong oxit nhit cao.- Al tan trong dung dch KNO3 (KOH)

8Al + 5KOH + 3KNO3 + 2H2O 8KAlO2 + 3NH3Ti liu lu hnh ni b Trang - 4 -

Nc cng l nccha nhiu ion Ca2+,Mg2+

Nc cng tmthi: Ca(HCO

2)

2,

Mg(HCO3)

2

Nc cng vnhcu:CaSO

4,MgSO

4,

CaCl2, MgCl

2

- un nng- Dng Ca(OH)

2

- Dng dd Na2CO

3, K

2CO

3,

Na3PO

4, K

3PO

4.

Cch lm mm

Dng dd Na2CO

3, K

2CO

3,

Na3PO

4, K

3PO

4.

Cch lm mm

Nc cng ton phn

Cch lm mm


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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010(cht kh) (cht oxi ho)

2) Sn xut: * Nguyn liu: Qung boxit (Al2O3.nH2O) ln tp cht Fe2O3, SiO2

* Phng php: in phn nng chy Al2O3- Ti cc m: xy ra qu trnh kh Al3+ + 3e Al- Ti cc dng xy ra qu trnh oxi ho O2- O2 + 2e

2Al2O3 pnc, criolit 4Al + 3O2II. HP CHT QUAN TRONG CA NHM

1) Nhm oxit: - Al2O3 l oxit lng tnh: Al2O3 + 3HCl 2AlCl3 + 3H2OAl2O3 + 2NaOH 2NaAlO2 + H2O

- iu ch 2Al(OH)3

0t

Al2O3 + 3H2O2Al(NO3)3

0t Al2O3 + 6NO2 +

3

2O2

2) Nhm hirxit Al(OH)3-l hirxit lng tnh: Al(OH)3 + 3HCl 2AlCl3 + 3H2O

Al(OH)3 + NaOH NaAlO2 + 2H2O- iu ch * Cho dung dch NH3 (d) vo dung dch mui Al3+

Al3+ + 3NH3 + 3H2O Al(OH)3 + 3NH4+

* Sc kh CO2 (d) vo dung dch mui aluminat AlO2-

NaAlO2 + CO2 + H2O Al(OH)3 + NaHCO3

3) Nhm sunfat: Phn chua K2SO4.Al2(SO4)3.24H2O hay KAl(SO4)2.12H2OKhi thay th K+ bng Li+, Na+ hay NH4+ phn nhmIII. Mt s hin tng

Th nghim Hin tng Cho t t dung dch NaOH (n d) vodung dch AlCl3

Xut hin kt ta keo mu trng, kt ta tan trongNaOH d

Cho t t dung dch AlCl3 (n d) vo dungdch NaOH

Ban u c kt ta sinh ra b tan ngay. Khi OH - ht, tip tc cho AlCl3 vo th li c kt ta v kt takhng tanAl3+ + 3OH- Al(OH)3Al(OH)3 + OH- AlO2- + 2H2OAl3+ + 3AlO2- + 6H2O 4Al(OH)3

Cho t t dung dch NH3 (n d) vo dungdch AlCl3

Xut hin kt ta keo mu trng, kt ta khng tantrong NH3 d

Sc t t kh CO2 (n d) vo dung dchNaAlO2

Xut hin kt ta keo mu trng, kt ta khng tankhi CO2 d

Cho t t dung dch HCl (n d) vo dungdch NaAlO2

Xut hin kt ta keo mu trng, kt ta tan trongHCl d

Cho t t dung dch NaAlO2 (n d) vodung dch HCl

Ban u c kt ta sinh ra b tan ngay. Khi H+ ht, tip tc cho NaAlO2 vo th li c kt ta v ktta khng tan

AlO2- + H+ + H2O Al(OH)3Al(OH)3 + 3H+ Al3+ + 3H2OAl3+ + 3AlO2- + 6H2O 4Al(OH)3


Al2O3.nH2OFe2O3SiO2

+ dd NaOH c

Fe2O3

NaAlO2Na2SiO3

+ CO2, H2OAl(OH)3 Al2O3


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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010 Cho kim loi Na (d) tc dng vi dung dchAlCl3

Na tan, si bt kh, xut hin kt ta keo, kt tatanSn phm: NaOH, NaAlO2, NaCl, H2

Cho Ba kim loi n d vo cc dung dchNaHCO3, CuSO4, (NH4)2SO4, Al(NO3)3

Khi cho Ba kim loi vo cc dung dch, trc tinBa tc dng vi H2O to ra dd Ba(OH)2 v gii phngkh H2. Sau xy ra phn ng trao i gia Ba(OH) 2

vi cc mui- Vi dd NaHCO3 c phn ngBa(OH)2 + 2NaHCO3 BaCO3 + Na2CO3+2H2OBa(OH)2 + Na2CO3 BaCO3 + 2NaOH- Vi dd (NH4)2SO4 c phn ngBa(OH)2 + (NH4)2SO4 BaSO4 + 2NH3 +2H2O- Vi dd (NH4)2SO4 c phn ng3Ba(OH)2 + 2Al(NO3)3 3Ba(NO3)2 + 2Al(OH)3 Ba(OH)2 + 2Al(OH)3 Ba(AlO2)2 + 4H2O- Vi dd CuSO4 c phn ng

Ba(OH)2 + CuSO4 Cu(OH)2 + BaSO4 Cho dung dch AlCl3 vo dung dch K2CO3c d

C kt ta trng v c si bt kh

Lu 1: Nu thay dung dich NaAlO2 = dung dch KAlO2dung dch AlCl3 = dung dch Al(NO3)3 hay Al2(SO4)3

Th hin tng cng ging nh trnLu 2: * Zn(OH)2 tan trong axit mnh, baz mnh

* Zn(OH)2 tan trong dung dch NH3 dV vy nn phn bit hai dung dch mui ZnCl2 v AlCl3 ta dng dung dch NH3 d nu

- xut hin kt ta v kt ta khng tan trong NH3 d th l tng ng l AlCl3- xut hin kt ta v kt ta tan trong NH3 d th l tng ng l ZnCl2

E. KIN THC V KIM LOI ST & HP CHT CA STI. KIM LOI ST 1. V tr cu hnh e tnh cht vt l:

- Fe thuc 26, chu k 4, nhm VIIIB- Cu hnh e: 1s2 2s22p63s23p63d6 4s2, => Fe l nguyn t d, c 2e ngoi cng, 8e ho tr- Fe l kim loi nng, d rn, mu trng hi xm, c tnh dn in, dn nhit tt v c tnh nhim t

( khc vi cc kim loi khc), Fe c cu to mng tinh th lp phng tm din hoc tm khi tu vo nhit2. Tnh cht ho hc: Fe l kim loi c tnh kh trung bnh

Cc phng trnh phn ng a) Tc dng vi phi kim:Fe + S0

t FeS

3Fe + 2O20

t Fe3O4, 2Fe + 3Cl20

t 2FeCl3b) Tc dng vi axit Fe 2 4 ( ), lHCl H SO+ Fe2+ + H2

Fe 3 2 04 ( , ), d tHNO H SO+ Fe3+ + sp kh ca

5 6

,N S+ +

+ H2O (*)

- i vi phn ng (*) nu Fe d th Fe + 2Fe3+ 3Fe2+


Fe Fe2+ Fe3+

Nhng 2e Nhng 1e

Ch c tnh kh Ch c tnh oxi hoVa c tnh oxi ho,va c tnh kh

Nhng 3e


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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010- Fe th ng trong HNO3 c ngui hoc H2SO4 c ngui

c) Tc dng vi dung dch mui: Fe b oxi ho thnh Fe2+

Fe + 2AgNO3 Fe(NO3)2 + 2Ag (1)Nu Fe d th sau phn ng thu c cht rn gm Ag v Fe d

dung dch ch c Fe(NO3)2Nu AgNO3 d th xy ra phn ng AgNO3 + Fe(NO3)2 Fe(NO3)3 + Ag (2)

sau phn ng thu c cht rn ch c Ag (1+2)dung dch cha Fe(NO3)3 v AgNO3 dd) Tc dng vi nc

* nhit thng Fe khng phn ng vi nc, nhng Fe b tan trong nc c ho tan kh oxi4Fe + 6H2O + 3O2 4Fe(OH)3

* nhit cao( >5700) Fe + H2O FeO + H2 nhit cao (


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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010dng luyn thp

+ Gang xm: cha nhiu C, Si, kmcng, dng c cc b phn my mc, ng dnnc, cnh ca,....- Nguyn tc sn xut gang: kh oxit st bngthan cc (CO) trong l cao- Nguyn liu sn xut gang: Qung st, thancc, cht chy (CaCO3, SiO2)

C,Si,Mn v rt t S,P+ Thp c bit: l thp c thm mt

s cc nguyn t: Si, Mn, Cr, Ni, W, V- Nguyn tc sn xut thp: Lm gim hmlng cc tp cht (C, S, Si, Mn,..) c trong gang

bng cch oxi ho cc tp cht thnh oxit ribin thnh x v tch ra khi thp- Nguyn liu sn xut thp: gang trng

E. KIN THC V KIM LOI ST & HP CHT CA STI. NG 1. V tr cu hnh e: - Thuc 24, nhm VIB, chu k 4.

- Cu hnh electron: 1s22s22p63s23p63d54s1 hay [Ar]3d54s1.2. Tnh cht vt l: - Crom l kim loi mu trng bc, c khi lng ring ln (d =

7,2g/cm3), t0nc = 18900C. - L kim loi cng nht, c th rch c thu tinh.3. Tnh cht ho hc - L kim loi c tnh kh mnh hn st.

- Trong cc hp cht crom c s oxi ho t +1 +6 (hay gp +2, +3 v +6).a). Tc dng vi phi kim

4Cr +3O2t0

2Cr2O3 2Cr + 3Cl2 2CrCl3t0

2Cr + 3S Cr2S3t0

b). Tc dng vi ncCr bn vi nc v khng kh do c lp mng oxit rt mng, bn bo v m crom ln st bo v stv dng Cr ch to thp khng g.

c) . Tc dng vi axit Cr + 2HCl CrCl2 + H2 Cr + H2SO4 CrSO4 + H2

Cr khng tc dng vi dung dch HNO3 hoc H2SO4 c, ngui.II. Hp cht crom (III) a) Crom (III) oxit Cr2O3 Cr2O3 l cht rn, mu lc thm, khng tan trong nc. Cr2O3 l oxit lng tnh Cr 2O3 + 2NaOH (c) 2NaCrO2 + H2O

Cr2O3 + 6HCl 2CrCl3 + 3H2b) Crom (III) hiroxit Cr(OH)3

Cr(OH)3 l cht rn, mu lc xm, khng tan trong nc. Cr(OH)3 l mt hiroxit lng tnh Cr(OH)3 + NaOH NaCrO2 + 2H2O

Cr(OH)3+ 3HCl CrCl3 + 3H2O Tnh kh v tnh oxi ho: 2CrCl3 + Zn 2CrCl2 + ZnCl2

2Cr3+ + Zn 2Cr2+ + Zn2+

2NaCrO2 + 3Br2 + 8NaOH 2Na2CrO4 + 6NaBr + 4H2O

22CrO+ 3Br2 + 8OH- 2

42CrO + 6Br- + 4H2O

III. Hp cht crom (VI) a) Crom (VI) oxit CrO3

CrO3 l cht rn mu thm. L mt oxit axit CrO3 + H2O H2CrO4 (axit cromic)

2CrO3 + H2O H2Cr2O7 (axit icromic) C tnh oxi ho mnh: Mt s cht hu c v v c (S, P, C, C 2H5OH) bc chy khi tip xc vi CrO3.

b) Mui crom (VI) L nhng hp cht bn.- Na2CrO4 v K2CrO4 c mu vng (mu ca ion 24CrO )

- Na2Cr2O7 v K2Cr2O7 c mu da cam (mu ca ion2

72OCr )

Cc mui cromat v icromat c tnh oxi ho mnh.

2 2 7 4 2 4 2 4 3 2 4 3 2 4 2

6 7 3 ( ) ( ) 7K Cr O FeSO H SO Fe SO Cr SO K SO H O+ + + + +

Trong dung dch ca ion2

72OCr lun c c ion2

4CrO trng thi cn bng vi nhau:

+dung dch kiem2- 2- +

2 7 2 4+dung dch axitCr O +H O 2CrO +2H



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010icromat(mu da cam) cromat (mu vng)

F. KIN THC V KIM LOI NG & HP CHT CA NG1. V tr cu hnh electron: th 29, thuc nhm IB, chu k 4.

Cu hnh electron: Cu (Z=29) 1s22s22p63s23p63d104s1 hay [Ar]3d104s1

2. Tnh cht ha hc: L kim loi km hot ng, c tnh kh yu.a. Tc dng vi phi kim: Th d: 2Cu + O2

ot 2CuO Cu + Cl2 ot CuCl2

b. Tc dng vi axit:* Vi axit HCl v H2SO4 long: Cu khng phn ng* Vi axit HNO3 , H2SO4 c, nng:Th d: Cu + 2H2SO4 (c)

ot CuSO4 + SO2 + H2O

Cu + 4HNO3 (c) ot Cu(NO3)2 + 2NO2 + 2H2O

3Cu + 8HNO3 (long) ot 3Cu(NO3)2 + 2NO + 4H2O

c. Tc dng vi dung dch mui Cu + 2FeCl3 CuCl2 + 2FeCl2Cu + 2AgNO3 Cu(NO3)2 + 2Ag

3. Hp cht ca ng: a. ng (II) oxit:-L oxit baz: tc dung vi axit v oxit axit.Th d: CuO + H2SO4 ---> CuSO4 + H2O

-C tnh oxi ha: d b H2 , CO , C kh thnh Cu kim loi.Th d: CuO + H2

ot Cu + H2O 3CuO + 2NH3 ot 3Cu + N2 + 3H2O

- iu ch: Cu(OH)2 ot CuO + H2O

2Cu(NO3)2 ot 2CuO + 4NO2 + O2

b. ng (II) hidroxit:-L mt baz: tc dng vi axit to mui v nc.Th d: Cu(OH)2 + 2HCl ---> CuCl2 + 2H2O

-D b nhit phn: Th d: Cu(OH)2 ot CuO + H2O

- iu ch: Cu2+ + 2OH- Cu(OH)2

Phn 2-CU HI TRC NGHIM V L THUYTCu 1 Kim loi c nhng tnh cht vt l chung no sau y?

A. Tnh do, tnh dn in, nhit nng chy cao B. Tnh do, tnh dn in v nhit, c nh kimC. Tnh dn in v nhit, c khi lng ring ln, c nh kim D. Tnh do, c nh kim, rt cng

Cu 2 Dy kim loi no sau y c xp theo chiu tng dn ca tnh kh?A. Al,Mg,Ca,K B. K,Ca,Mg,Al C. Al,Mg,K,Ca D. Ca,K,Mg,Al

Cu 3 Kim loi M tc dng c vi cc dung dch: HCl, Cu(NO3)2, HNO3 c ngui. M l kim loi no?A. Al B. Ag C. Zn D. Fe

Cu 4 Tnh cht vt l no sau y ca kim loi khng phi do cc electron t do gy ra?A. nh kim B. Tnh do C.Tnh cng D.Tnh dn in v nhit

Cu 5 Kim loi no di y khng phn ng vi nc iu kin thng?A. Na B. Ba C. Ca D. Al

Cu 6 Kim loi no di y c th tan trong dung dch HClA. Sn B. Cu C. Ag D. Hg

Cu 7 Kim loi no sau y c th y st ra khi dung dch mui Fe(NO 3)2?A. Ni B. Sn C. Zn D. Cu

Cu 8Ngm mt l Nike trong dung dch long ca cc mui sau: MgCl2, NaCl, Cu(NO3)2, AlCl3, ZnCl2,Pb(NO3)2, Nike s kh c cc mui trong dy no sau y:

A. AlCl3, ZnCl2, Pb(NO3)2 B. MgCl2, AlCl3, Pb(NO3)2C. MgCl2, NaCl, Cu(NO3)2 D. Cu(NO3)2, Pb(NO3)2

Cu 9 Hy sp xp cc cp oxi ha kh sau y theo th t tng dn tnh oxi ha ca cc ion kim loi:Cu2+/Cu (1) ; Fe2+/Fe (2) ; 2H+/H2 (3) ; Ag+/Ag (4) ; Na+/Na (5) ; Fe3+/Fe2+ (6) ; Pb2+/Pb (7).

A. 5 > 2 > 7 > 3 > 1 > 6 > 4 B. 4 < 1 < 3 < 7 < 6 < 2 < 5C. 5 < 2 < 7 < 3 < 1 < 6 < 4 D. 5 < 7 < 2 < 3 < 1 < 4 < 6Cu 10Nhng phn ng no sau y khng ng :

1. Fe + 2H+ Fe2+ + H2 2. Fe + Cl2 FeCl2Ti liu lu hnh ni b Trang - 9 -


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Trng THPT L Thanh Hin T Ha n thi tt nghip 20103. AgNO3 + Fe(NO3)2 Fe(NO3)3 + Ag 4. Zn + 2FeCl3 ZnCl2 +

2FeCl25. Fe d + 4HNO3long Fe(NO3)3 +NO + 2H2OA. 2, 5 B. 3, 5 C. 2, 4 , 5 D. 2, 3, 5

Cu 11 Trong s cc kim loi sau, cc kim loi no c xem l mm nht.A. Na, K,Mg B.Na, Ca C.Na, K D. Ca, Mg

Cu 12Dy no sau y ch gm cc cht va tc dng c vi dung dch HCl, va tc dng c vi dungdch AgNO3 ?

A. Zn, Cu, Mg B. Al, Fe, CuOC. Fe, Ni, Sn D. Hg, Na, CaCu 13 Trong s cc kim loi sau, cp kim loi no c nhit nng chy cao nht v thp nht.:

A. Fe, Hg B. Au, W C. W, Hg D. Cu, HgCu 14 Dy kim loi no sau y gm nhng kim loi khng phn ng vi H2O nhit thng.

A. Mg, Al, K B. Ag, Mg, Al, Zn C. K, Na,Cu D. Ag,Al,Li, Fe, ZnCu 15 iu no sau y c khng nh l sai:

A. Trong mt chu k, s hiu nguyn t tng tnh kim loi tng dn.B. Phn ln cc nguyn t kim loi u c t 13e lp ngoi cng.

C. Kim loi c m in b hn phi kim.D. Tt c cc kim loi u c nh kim.Cu 16 Trng hp no sau y phn ng khng xy ra :

A. Cu + Ag+ B. Ag+ + Fe2+ C.Ni + Mg2+ D. Fe + Fe3+.Cu 17 Cho phn ng : M + HNO3 M(NO3)3 + N2 + H2OH s cn bng ca cc phng trnh phn ng trn l :

A. 10 , 36 , 10 , 3 , 18 B. 4 , 10 , 4 , 1 , 5 C. 8 , 30 , 8 , 3 , 15 D. 5 , 12 , 5 , 1 , 6Cu 18 Cho cc dung dch X1: HCl , X2: KNO3 , X3: HCl + KNO3 ,X4: Fe2(SO4)3. Dung dchno c th ha tan c bt Cu:

A. X1, X4, X2 B. X3, X4 C.X4 D. X3, X4 ,X1,X2Cu 19 C 6 dung dch ng trong 6 l b mt nhn l (NH 4)2SO4, NH4Cl, MgCl2, AlCl3, FeCl2, FeCl3. Nu

ch dng mt ha cht no sau y c th gip nhn bit 6 cht trn:A. Na (d) B. Ba (d) C. dd NaOH (d) D. dd BaCl2Cu 20 Cho cc phn ng:

X + HCl B + H2B + NaOH va C + C + KOH dung dch A + Dung dch A + HCl va C + .

X l kim loi: A. Zn hoc Al B. Zn C. Al D. Mt kim loikhc.Cu 21 Cu hnh electron ca nguyn t Cr (Z=24) l :

A.[Ar] 3d44s2 B.[Ar] 3d4 4s1 C.[Ar] 3d54s2 D.[Ar] 3d54s1Cu 22ChoNhm vo dung dch cha KOH v KNO3 , ta thu c :A.KAlO2 v H2 B. KAlO2 v NH3 . C. 3 3Al(NO ) + NO v H2O. D. A v B u ng .Cu 23Tm h s cn bng ca HNO3 trong phn ng :

Mg + HNO3 Mg(NO3)2 + NH4NO3 + H2O .A. 8 B. 10 C. 12 D. 4 .

Cu 24 Cho phn ng: Al + HNO3 Al(NO3)3 + N2O + H2O, h s cn bng ca phn ng ln lt l:A. 8, 6, 8, 3, 15 C. 8, 6, 8, 6, 15 B. 8, 6, 8, 3, 1 D. 8, 30, 8, 3, 15

Cu 25 Cho Mg vo dung dch cha FeSO4 v CuSO4. Sau phn ng thu c cht rn A gm 2 kim loi vdung dch B cha 2 mui. Phn ng kt thc khi no?A. CuSO4 ht, FeSO4 d, Mg ht B. CuSO4 ht, FeSO4 cha phn ng, Mg htC. CuSO4 ht, FeSO4 ht, Mg ht D. CuSO4 d, FeSO4 d, Mg ht

Cu 26Ha cht no sau y dng tch Ag ra khi hn hp Ag, Fe, Cu m vn gi nguyn khi lng Agban u? A. Cu(NO3)2 B.Fe(NO3)3 C.AgNO3 D.Fe(NO3)2Cu 27 Khi cho Na vo dung dch CuSO4 c hin tng:



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010A. C kh bay ra v c kt ta mu xanh lam B. C kt ta Cu mu C. C kh bay ra v c kt ta Cu mu D. C kh bay ra

Cu 28 Cu hnh electron sau y1s2 2s2 2p6 3s23p6 3d6 4s2 ca nguyn t kim loi no ?A. Fe B. Cu C. Al D. Zn

Cu 29 Cho kim loi Mg vo dung dch HNO3 long (d) khng thy kh thot ra. Trong dung dch A c chanhng cht no? A. Mg(NO3)2, NH4NO3 B. Mg(NO3)2, NH4NO3 v HNO3 d

C. Mg(NO3)2 v HNO3 d D. C A, B, C u ngCu 30Ngm mt l niken trong cc dung dch mui sau: MgSO4, NaCl, CuSO4, AlCl3, ZnCl2, Pb(NO3)2. Vidung dch mui no phn ng c th xy ra? A. MgSO4, CuSO4 B. AlCl3, Pb(NO3)2 C. ZnCl2, Pb(NO3)2 D. CuSO4, Pb(NO3)2Cu 31 C mt dung dch FeSO4 b ln tp cht CuSO4 , mun thu c dung dch FeSO4 tinh cht phi

dng : A. Bt Mg d ri lc B. Bt Cu d ri lcC. Ag d ri bt lc D. Bt Fe d ri lc .

Cu 32Nhn nh 2 phn ng sau:Cu + 2 FeCl3 CuCl2 + 2FeCl2 (1)Fe + CuCl2 FeCl2 + Cu (2)

Kt lun no di y ng

A. Tnh oxi ho ca Cu2+

>Fe3+

>Fe2+

B. Tnh oxi ho ca Fe3+

>Cu2+

>Fe2+

C. Tnh kh ca Cu>Fe2+>Fe D. Tnh kh ca Fe2+>Fe>CuCu 33 Phn ng no sau y khng th xy ra trong dung dch :

A. Ag + Cu2+ B. Fe + Fe2+ C. Fe3+ + Cu D. a,b ng

Cu 34 Cc hn hp cht no sau y khng tn ti trong cng mt dung dch :A. Fe(NO3)3 v AgNO3 B. Fe(NO3)2 v AgNO3C. Fe(NO3)2 v Cu(NO3)2 D. Tt c u sai .

Cu 35 C cc cp oxi ha kh : Fe2+/Fe, Cu2+/Cu , Fe3+/Fe2+. C th c bao nhiu phn ng ha hc xy ratrong dung dch ? A. 2 B. 3 C. 4 D. 5Cu 36 Cho hn hp gm 2 kim loi Al v Fe vo dd cha hn hp 2 mui l Cu(NO3)2 v AgNO3 thu c

cht rn A cha 3 kim loi . Ba kim loi l :A. Fe,Al,Ag B. Ag,Fe,Cu C. Cu,Al,Fe D. Al ,Ag,CuCu 37 Cu tan c trong dung dch no sau y :A. Fe2(SO4)3 B. AgNO3 C. FeSO4 D. a v b ng

Cu 38 Phn ng gia dung dch FeCl2 v dung dch AgNO3 l phn ng :A. Trao i ion B. Phn ng oxi ho khC. Va trao i ion va oxi ho kh D. Phn ng th .

Cu 39 Kt lun no sau y khngng ?A. Cc thit b my mc bng kim loi tip xc vi hi nc nhit cao c kh nng b n mn ho hc.B. Ni thanh Zn vi v tu thu bng thp th v tu thu s c bo v.

C. vt bng thp ra ngoi khng kh m th vt s b n mn in ho.D. Mt ming v hp lm bng st ty (st trng thic) b xy xt tn bn trong, trong khng kh m thSn s b n mn trc.Cu 40 Cho 4 ion Al3+, Zn2+, Cu2+, Pt2+. Chn ion c tnh oxi ha mnh hn Pb2+

A. Ch c Cu2+ B. Ch c Cu2+, Pt2+ C. ch c Al3+ D. Ch c Al3+, Zn2+

Cu 41 Xt phn ng : Cu + 2Ag+ Cu2+ + 2Ag

Cht b kh l : A. Cu B. Ag+ C. Cu2+ D. AgCu 42 Xt phn ng : Fe + Cu2+ Fe2+ + CuCht b oxi ha : A. Fe B. Fe2+ C. Cu2+ D. Ag

Cu 43Trong cc phn ng sau:1) Cu + 2H+ Cu2+ + H2 2) Cu + Hg2+ Cu2+ + Hg 3) Zn + Cu2+ Zn2+ + CuPhn ng no xy ra theo chiu thun ?



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010A.Ch c 2, 3 B.Ch c 1 C.Ch c 2 D.Ch c 3

Cu 44 Tnh oxi ho ca cc ion kim loi tng theo th t:A. Fe2+, Zn2+, Cu2+, Al3+ B. Zn2+, Fe2+, Al3+, Cu2+

C. Al3+, Zn2+, Fe2+, Cu2+ D. Fe2+, Zn2+, Al3+, Cu2+

Cu 45 C cc ion kim loi : Fe3+, Fe2+, Cu2+. Tnh oxi ha ca cc ion kim loi (theo th t)A. Tng B. Gim C. Va tng va gim D. Va gim va tng

Cu 46 Khi nhng l Zn vo cc dung dch mui sau: AgNO3, ZnSO4, Cu(NO3)2. Zn s kh c ionA. Ag+, Cu2+ B. Ag+, Zn2+ C. Zn2+,C u2+ D. Ag+, Zn2+, C u2+

Cu 47 C dd FeSO4 ln tp cht l CuSO4. c th loi b c tp cht ngi ta dng phng phpha hc n gin:

A. Dng Zn kh ion Cu2+ trong dd thnh Cu khng tan.B. Dng Al kh ion Cu2+ trong dd th nh Cu khng tan.C. Dng Mg kh ion Cu2+ trong dd th nh Cu khng tan.D. Dng Fe kh ion Cu2+ trong dd th nh Cu khng tan.

Cu 48 lm sch mt loi Ag c ln tp cht l Al, Fe; ngi ta dng dung dchA. Ag2SO4 d B. ZnSO4 d C. FeSO4 d D. Al2(SO4)3 d

Cu 49 Mt tm kim loi bng Au b bm mt lp Fe b mt. Ta c th ra lp Fe loi tp cht trn bmt v bng dung dch no sau y:

A. CuSO4 d B. FeSO4 d C. ZnSO4 d D. FeCl3 dCu 50 Cho 4 kim loi Al, Fe, Mg, Cu v 4 dung dch ZnSO4, AgNO3, CuCl2, Al2(SO4)3. Kim loi kh cc 4 dung dch l: A. Fe B. Al C. Mg D. CuCu 51 iu ch Na kim loi, ngi ta c th dng phng php no trong cc phng php sau: 1. in

phn dung dch NaCl. 2. in phn NaCl nng chy.3. Dng K cho tc dng vi dung dch NaCl. 4. Kh Na2O bng CO nhit cao.

A. Ch dng 1 B. Ch dng 2 C. Ch dng 4 D. Dng 2 v 3Cu 52 Cho pht biu ng v phng php nhit nhm.A. Nhm ch c th kh cc oxit kim loi ng sau hidro trn dy in ha.B. Nhm ch c th kh cc oxit kim loi ng sau Al trn dy in ha.C. Nhm c th kh cc oxit kim loi ng trc v sau Al trn dy in ha vi iu kin kim loi y d bayhi.D. Nhm c th kh tt c cc oxit kim loi.Cu 53 Khi cho lung kh hidro (c d) i qua ng nghim cha Al 2O3, FeO, CuO, MgO nung nng, n khi

phn ng xy ra hon ton. Cht rn cn li trong ng nghim gm:A. Al2O3, FeO, CuO, MgO B. Al2O3, Fe, Cu, MgO C. Al, Fe, Cu, MgO D. Al, Fe, Cu, MgCu 54 iu ch canxi kim loi c th dng cc phng php:

A. Dng H2 kh CaO nhit cao. B. Dng kali kim loi y Ca ra khi dung dch mui CaCl2.C. in phn nng chy mui CaCl2. D. C 3 cch A, B, C u c.Cu 55 Cho hp kim Zn, Mg, Ag vo dung dch CuCl2. Sau phn ng thu c hn hp 3 kim loi l:A. Zn, Mg, Cu. B. Zn, Mg, Al. C. Mg, Ag, Cu. D. Zn, Ag, Cu.Cu 56 Cp cht no sau y phn ng c vi nhau?A. Zn2+ + Cu2+ B. Zn2+ + Cu C. Cu2+ + Zn D. Cu + ZnCu 57 Cho Cu d tc dng vi dung dch AgNO3 thu c dung dch X. Cho Fe d vo dung dch X cdung dch Y. Kt thc cc phn ng dung dch Y chaA. Fe(NO3)2 B. Fe(NO3)3 C. Fe(NO3)2 , Cu(NO3)2 d D. Fe(NO3)2 , Cu(NO3)2 dCu 58 Cho ba kim loi l Al, Fe, Cu v bn dung dch mui ring bit l : ZnSO4, AgNO3, CuCl2, MgSO4.Kim loi no tc dng c vi c bn dung dch mui cho ?

A. Al B. Fe C. Cu D. khng kim loi no tc dng cCu 59 Cho cc kim loi : Fe , Ag , Cu v cc dung dch HCl , CuSO4 , FeCl3. S cp cht c th phn ngvi nhau l A. 1. B. 2. C. 3. D. 4.



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010Cu 60 Cho cc kim loi Cu, Fe v cc dung dch CuCl2, FeCl3, Fe(NO3)2, AgNO3. S cp cht c th phnng vi nhau l A. 6. B. 7. C. 8. D. 9.Cu 61 Cho bt st vo dung dch AgNO3 d , sau khi phn ng xy ra hon ton thu c 1 kim loi vdung dch cha A. Fe(NO3)2 , AgNO3. B. Fe(NO3)2, Fe(NO3)3, AgNO3

C. Fe(NO3)3, AgNO3. D. Fe(NO3)2.Cu 62 Cho Mg tc dng vi dung dch hn hp 2 mui CuSO4, FeSO4 c 2 mui v 2 kim loi l:

A. FeSO4, CuSO4 v Cu, Fe. B. MgSO4, FeSO4 v Cu, Fe.C. MgSO4, CuSO4 v Cu, Mg. D. MgSO4, FeSO4 v Mg, Fe.

Cu 63 Cho hn hp 2 kim loi Mg , Zn tc dng vi dung dch CuSO4, c 2 mui v 2 kim loi l:A. MgSO4, ZnSO4 v Cu, Zn. B. MgSO4, CuSO4 v Cu, Zn.C. CuSO4, ZnSO4 v Cu, Mg. D. CuSO4, ZnSO4 v Mg, Zn.

Cu 64 Cho hn hp gm 2 kim loi Al v Fe vo dd cha hn hp 2 mui l Cu(NO3)2 v AgNO3 thu ccht rn A cha 3 kim loi . Ba kim loi l

A. Fe, Al, Ag. B. Ag, Fe, Cu. C. Cu, Al, Fe. D. Al , Ag, CuCu 65 Hn hp A gm 3 kim loi Cu, X, Fe. tch ri c kim loi X ra khi hn hp A, m khng lmthay i khi lng X, dng 1 ha cht duy nht l mui nitrat st. Vy X l

A. Ag. B. Pb. C. Zn. D. Al.

Cu 66 Hy chn cu ng. Trong n mn in ha, xy ra:A. S oxi ha cc dng B. S oxi ha 2 ccC. S kh cc m D. S oxi ha cc m v s kh cc dng

Cu 67 Mt si dy ng ni vi mt si dy nhm trong khng kh m, quan st ch ni ca hai kim loisau mt thi gian: A. Khng c hin tng g. B. Dy nhm b t.

C. Dy ng b t. D. C hai dy cng b t.Cu 68 bo v v tu i bin, trong cc kim loi sau: Cu, Mg, Zn, Pb nn dng kim loi no ? A. Ch c Mg B. Ch c Zn C. Ch c Mg, Zn D. Ch c Cu, PbCu 69 Cc vt dng bng st trong i sng u khng phi l st nguyn cht. l nguyn nhn dn n:

A. Cc vt dng trn b n mn theo c ch n mn in ha.B. Cc vt dng trn b n mn theo c ch n mn ha hc.

C. Cc vt dng trn d b st g khi tip xc vi dung dch in li.D. A, C u ng.Cu 70 Ch ra mnh sai trong cc mnh sau:A. S ph hy kim loi di tc dng ha hc ca mi trng xung quanh gi l s n mn kim loi .B. n mn ha hc l s ph hy kim loi bi cht kh hay hi nc nhit cao.C. n mn ha hc l s ph hy kim loi do kim loi tip xc vi dung dch cht in li to nn dng inD. Khi kim lai b oxi ha th mt i nhng tnh cht qu bu ca kim loi.Cu 71 Nhng hp kim sau ngoi khng kh m, kim loi no b n mn:

A. Al - Fe, Al b n mn B. Cu - Fe, Cu b n mn C. Fe - Sn, Sn b n mn D. Ni - Pb, Pb b n mnCu 72 Pht biu no sau y sai:

A. Bn cht ca n mn kim loi l qu trnh oxi ha kh.

B. c im ca n mn ha hc l khng pht sinh dng in.C. Trong n mn in ha, cc m xy ra qu trnh kh kim loi, cc dng xy ra qu trnh

oxi ha H+ (nu dd in li l axit).D. chng n mn kim loi, ngi ta phi cch li kim loi vi mi trng.

Cu 73 iu no sau y ni ln s khc bit v bn cht ca 2 hin tng n mn kim loi ?A. S pht sinh dng in B. Qu trnh oxi ha khC. Kim loi mt electron to ra ion dng D. S ph hy kim loi

Cu 74 Ngi ta iu ch ng bng cch:A. Dng H2 kh CuO nung nng. B. in phn dung dch CuSO4.C. Dng st y ng ra khi dung dch mui. D. A, B, C u ng.

Cu 75 iu ch Na bng phng php thch hp :A. in phn nng chy NaCl B. in phn dd NaCl c mng ngnC. in phn nng chy NaOH D. A ,C u ng

Cu 76 Kim loi M tc dng c vi cc dung dch: HCl, Cu(NO3)2, HNO3 c ngui. M l kim loi no?



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010A. Al B. Ag C. Zn D. Fe

Cu 77Cho cc cp oxi ha kh sau: Zn2+/Zn; Cu2+/Cu; Fe2+/Fe. Bit tnh oxi ha ca cc ion tng dn theoth t: Zn2+, Fe2+, Cu2+ tnh kh gim dn theo th t: Zn, Fe, Cu. Trong cc phn ng ha hc sau, phn ngno khng xy ra?

A. Cu + FeCl2 B. Fe + CuCl2 C. Zn + CuCl2 D. Zn + FeCl2Cu 78Cho dung dch Fe2(SO4)3 tc dng vi kim loi Cu c FeSO4 v CuSO4. Cho dung dch CuSO4 tcdnh vi kim loi Fe c FeSO4 v Cu. Qua cc phn ng xy ra ta thy tnh oxi ha ca cc ion kim loigim dn theo dy no sau y?

A. Cu2+; Fe3+; Fe2+ B. Fe3+; Cu2+; Fe2+ C. Cu2+; Fe2+; Fe3+ D. Fe2+;Cu2+; Fe3+

Cu 79 lm sch mt loi thy ngn c ln cc tp cht km, thic, ch c th dng cch no sau y?A. Ha tan loi thy ngn ny trong dung dch HCl dB. Ha tan loi thy ngn ny trong axit HNO3 long, d, ri in phn dung dch.C. Khuy loi thy ngn ny trong dung dch HgSO4 long, d ri lc dung dchD. t loi thy ngn ny v ha tan sn phm bng axit HCl

Cu 80 iu ch cc kim loi Na, Mg, Ca trong cng nghip, ngi ta dng cch no trong cc cch sau?A. in phn dung dch mui clorua bo ha tng ng c vch ngn.B. Dng H2 hoc CO kh oxit kim loi tng ng nhit cao.

C. Dng kimloi K cho tc dng vi dung dch mui clorua tng ng.D. in phn nng chy mui clorua khan tng ng.Cu 81Trng hp no sau y xy ra s n mn in ha hc :

A. Thp trong khng kh m B. Km trong dung dch H2SO4C. Na chy trong kh Cl2 D. C 3 trng hp trn

Cu 82Cho cc phng trnh in phn sau, phng trnh no vit sai?A. pdd3 2 2 34AgNO +2H O 4Ag+O +4HNO B.

pdd4 2 2 2 4CuSO +2H O 2Cu+O +2H SO

C. pddn 22MCl 2M +nCl D. pdd

24MOH 4M +2H O

Cu 83Phn ng in phn nng chy no di y b vit sai sn phm?

A. pnc2 3 23

Al O 2Al + O

2

B. pnc 2 22NaOH 2Na+O +H

C. pnc 22NaCl 2Na+Cl D. pnc

3 2 2Ca N 3Ca+N

Cu 84M t no di y khng ph hp vi th nghim nhng thanh Fe vo dung dch CuSO4 mt thigian? A. B mt thanh kim loi c mu . B. Dung dch b nht mu.

C. Dung dch c mu vng nu. D. Khi lng thanh kim loi tng.Cu 85 iu ch kim loi ngi ta thc hin :A. qu trnh oxi ha kim loi trong hp cht B. qu trnh kh kim loi trong hp chtC. qu trnh kh ion kim loi trong hp cht D. qu trnh oxi ha ion kim loi trong hp chtCu 86Trong trng hp no sau y ion Na+ b kh thnh Na.

A. in phn dung dch NaOH B. in phn dung dch Na2SO4C. in phn NaOH nng chy D. in phn dung dch NaCl

Cu 87 iu ch ng t dung dch ng sunfat, ngi ta c th :A. Dng st y ng ra khi dung dch muiB. chuyn ha ng sunfat thnh CuO ri dng H2 kh nhit caoC. in phn dung dch CuSO4 D. C 3 phng php trn.

Cu 88 iu ch Mg t dung dch MgCl2 ngi ta c th :A. chuyn ha dung dch MgCl2 thnh MgO ri kh bng H2 nhit caoB. dng kim loi mnh y Mg ra khi dung dch muiC. in phn MgCl2 nng chy D. C 3 phng php trn.

Cu 89 in phn vi in cc tr, mng ngn gia 2 in cc dung dch no sau y th dung dch sau inphn c pH > 7 ? A. Dung dch NaCl B. Dung dch Na2SO4

C. Dung dch CuSO4 D. Dung dch AgNO3Cu 90 Mt loi Ag c ln mt t tp cht l Cu, tch tp cht ra khi Ag ngi ta c th :A. Cho hn hp kim loi vo dung dch HCl B. Cho hn hp kim loi vo dung dch AgNO3 dC. Cho hn hp kim loi vo dung dch CuSO4d D. Cho hn hp kim loi tc dng oxi d nhit cao.



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010Cu 91 iu ch Ca t dung dch Ca(NO3)2 ngi ta c th :

A. in phn dung dch Ca(NO3)2B. in phn Ca(NO3)2 nng chyC. Chuyn Ca(NO3)2 thnh CaCl2 ri in phn nng chyD. Dng kim loi mnh y Ca ra khi dung dch mui

Cu 92 in phn vi in cc tr, mng ngn gia 2 in cc ln lt cc dung dch sau : NaCl (1), K2SO4(2), AgNO3 (3), CuCl2 (4). Dung dch sau in phn c pH < 7 l trng hp khi in phn dung dch :

A. (1) v (4) B. (2) v (3) C. (3) D. (4)Cu 93 Trong qu trnh in phn NaCl nng chy th catot :

A. ion Na+ b kh B. ion Na+ b oxi ha C. ion Cl- b kh D. ion Cl- b oxi haCu 94 iu ch Ag t dung dch AgNO3 ngi ta c th :

A. C cn dung dch ri nhit phn mui AgNO3 B. in phn dung dch AgNO3C. Dng Zn y Ag ra khi dung dch mui D. C 3 phng php trn.

Cu 95 Kim loi no sau y c th c iu ch bng phng php in phn nng chy mui cloruatng ng ? A. Sn B. Ca C. Cu D. ZnCu 96 in phn dung dch NaCl vi in cc tr catot thu c

A. Cl2 B. Na C. H2 D. O2

Cu 97 Kim loi no sau y c th iu ch c bng phng php in phn dung dch ?A. Al B. Cu C. Mg D. NaCu 98 Dy gm cc kim loi c iu ch trong cng nghip bng phng php in phn hp cht nngchy ca chng l

A. Na , Ca , Al B. Na , Ca , Zn C. Na , Cu , Al D. Fe , Ca , AlCu 99 in phn dung dch cha c c cation : Fe2+, Ag+, Cu2+ v Zn2+. Cation b kh u tin l :

A. Fe2+ B. Cu2+ C. Ag+ D. Zn2+

Cu 100 in phn dung dch KCl, lc u catot xy ra:A. qu trnh kh ion K+ . B. qu trnh oxi ha ion K+ .C. qu trnh kh H2O. D. qu trnh oxi ha ion Cl-.

Cu 101 in phn dung dch KOH, sn phm thu c l:

A. K, O2 v H2O. B. O2 v H2. C. K, O2 v H2. D. H2, O2 v H2O.Cu 102 in phn dung dch Cu(NO3)2 , sn phm thu c 2 in cc l:A. Cu, O2 v H2O. B. O2 v H2. C. Cu, O2 v HNO3. D. H2, O2 v HNO3.

Cu 103 in phn dung dch Y c mng ngn, dung dch sau khi in phn c mi trng baz. Dung dch Yl: A. NaNO3 B. NaCl C. Na2SO4 D. AgNO3Cu 104 in phn mi dung dch no sau y xem nh in phn nc?A. AgNO3, Na2SO4 B. KNO3, KOH C. KCl, NaOH D. H2SO4, CuSO4Cu 105 Nguyn tc chung iu ch kim loi lA. oxi ha ion kim loi thnh kim loi. B. dng kim loi mnh kh ion kim loi yu hn.C. kh ion kim loi thnh kim loi. D. thc hin qu trnh oxi ha kim loi.Cu 106 Phng php dng mt kim loi c tnh kh mnh hn kh ion kim loi khc trong dung dch

mui c gi l phng phpA. nhit luyn. B. in phn. C. thy phn. D. thy luyn.

Cu 107 Phng php c th iu ch c hu ht cc kim loi lA. thy luyn. B. nhit luyn. C. in phn. D. thy luyn v in phn

Cu 108 in phn dd NaCl , in cc tr , khng c vch ngn , Sn phm thu c gm :A. H2, Cl2, NaOH B. H2, Cl, NaOH, nc javel

C. H2, Cl2 , nc javel D. H2 , nc javel.Cu 109 Dung dch no sau y khi in phn thc cht l in phn nc :A. NaCl B. Na2SO4 C.CuSO4 D. HClCu 110T dung dch MgCl2 , phng php thch hp iu ch Mg l:

A. in phn dung dch MgCl2 .B. c cn dung dch ri in phn MgCl2 nng chy.

C. dng Na kim loi kh ion Mg2+ trong dung dch.



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010D. chuyn MgCl2 thnh Mg(OH)2 ri thnh MgO v kh MgO bng CO nhit cao.

Cu 111 Trong qu trnh in phn CaCl2 nng chy, anot xy ra phn ng:A. oxi ha ion clorua B. kh ion canxi C. kh ion clorua D. oxi ha ion canxi

Cu 112 in phn dung dch NaCl c mng ngn, catot thu c sn phm g ?A. Na B. H2 C. Cl2 D. NaOH v H2

Cu 113 in phn dung dch cha mui no sau y s iu ch c kim loi tng ng?

A. NaCl B. CaCl2 C. AgNO3 D.AlCl3Cu 114 in phn Al2O3 nng chy . Ti catot xy ra qu trnh:A. oxi ha ion Al3+ B. kh ion Al3+C. kh ion O2-D. oxi ha ion O2-

Cu 115 Khi cho lung kh H2 (d) i qua ng nghim cha Al2O3, FeO, CuO,MgO nung nng n khi phnng xy ra hon ton. Cht rn cn li trong ng nghim l :A. Al2O3, FeO, CuO, Mg B. Al2O3, Fe, Cu, MgO C. Al, Fe ,Cu, Mg D. Al, Fe, Cu, MgOCu 116 Cho 4 dd mui: CuSO4, K2SO4, NaCl, KNO3 dung dch no sau khi in phn cho ra mt dd axt?

A. CuSO4 B. K2SO4 C. NaCl D. KNO3Cu 117 Cho cc dd: mui ng, mui st, mui bc, mui natri. in phn dung dch no khng thu ckim loi: A. mui ng B. mui st C. mui bc D. mui natriCu 118 iu ch nhm ngi ta c th:

A. in phn dung dch mui nhm B. in phn nng chy AlCl3C. in phn Al2O3 nng chy D. C 3 cch trn u cCu 119 Ion K+ khng b kh trong qu trnh no sau y?

(1) in phn nng chy KCl (2) in phn nng chy KOH(3) in phn dung dch KCl khng c mng ngn (4) in phn dung dch KCl c mng

ngnA. (1),(2),(4) B. (2),(4) C. (3),(4) D. (1),(2)

Cu 120 Trong qu trnh in phn (c mng ngn) dung dch NaBr, catot xy ra qu trnh no sau y?A. Oxi ho ion Na+ B. Kh H2O C. Kh ion Br- D. Oxi ho ion

Br-

Cu 121 Mui NaHCO3 c tnh cht no sau y ?

A. Kim B. Axit C. Lng tnh D. Trung tnhCu 122Nhng giy qu tm vo dung dch Na2CO3 th mu ca giy qu thay i nh th no ?

A. Chuyn sang xanh B. Chuyn sang hngC. Mt mu hon ton D. Khng i mu

Cu 123 Kh CO2 khng phn ng vi dung dch no?A.NaOH B. Ca(OH)2 C. Na2CO3 D. NaHCO3

Cu 124 Tnh baz tng dn t tri sang phi theo th t no?A. LiOH < KOH < NaOH B. NaOH < LiOH < KOHC. LiOH < NaOH < KOH D. KOH < NaOH < LiOH

Cu 125 C 4 dung dch : Na2CO3, NaOH, NaCl, HCl.Nu ch dng qu tm th c th nhn bit c :A. 1 dung dch B. 2 dung dch C.4 dung dch D. 3 dung dch

Cu 126 Trong s cc kim loi kim sau y, kim loi no c nng lng ion ha cao nht?A. Natri. B. Liti. C. Kali. D. Rubii.

Cu 127 Th t gim dn hot ng ha hc ca cc kim loi kim l:A. Na K Cs Rb Li. B. Cs Rb K Na LiC. Li Na K Rb Cs D. K Li Na Rb Cs

Cu 128 Mnh no sau y sai?Trong nhm IA, theo chiu in tch ht nhn tng dn,A. bn knh nguyn t tng dn. B. nng lng ion ha gim dn.C. tnh kh tng dn. D. m in tng dn.

Cu 129 Nu M l nguyn t nhm IA th oxit ca n c cng thcA. MO2. B. M2O3. C. MO. D. M2O.

Cu 130Ion Na+khng tn ti trong phn ng no sau y?A. NaOH tc dng vi HCl. B. NaOH tc dng vi dung dch CuCl2.C. un nng dung dch NaHCO3. D. in phn NaOH nng chy.



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010Cu 131 Cc dung dch mui NaHCO3 v Na2CO3 c mi trng baz v trong nc, chng tham gia phnng A. Thy phn. B. Oxi ha kh. C. Trao i. D. Nhit phn.Cu 132 X, Y, Z l hp cht v c ca mt kim loi, khi t nng nhit cao cho ngn la mu vng. Xtc dng vi Y to thnh Z . Nung nng Y nhit cao thu c Z, hi nc v kh E. Bit E l hp chtca cacbon, E tc dng vi X cho Y hoc Z. Cc cht X, Y, Z, E ln lt l:

A. NaOH, Na2CO3, NaHCO3, CO2. B. NaOH, NaHCO3, Na2CO3, CO2.

C. NaOH, NaHCO3, CO2, Na2CO3. D. NaOH, Na2CO3, CO2, NaHCO3.Cu 133 Cho s : Na

+XNaOH

+ 2COY

+ZNaCl

X,Y,Z ln lt l : A. H2O , Na2CO3 , HCl B. H2O , NaHCO3 , BaCl2C. H2O , Na2CO3 , CaCl2 D. C A,B,C

Cu 134 C 4 dd : Na2CO3 , NaOH , NaCl , HCl . Nu ch dng qu tm ta c th nhn bit c :A. 1 dd B. 2 dd C. 4 dd D. Khng nhn c dd no

Cu 135 Dy ha cht no sau y c th tc dng c vi dd Na 2CO3A. HCl , K2SO4 , Ba(OH)2 B. H2SO4 , AgCl , KOHC. HNO3 , CuSO4 , Ba(OH)2 D. Tt c u c

Cu 136 Hm lng Na tng dn theo dy :A. NaHCO3 , NaCl , Na2CO3 , NaOH . B. NaOH , Na2CO3 , NaCl , NaHCO3C. NaHCO3, Na2CO3 , NaCl , NaOH . D. NaOH , NaCl , Na2CO3 , NaHCO3

Cu 137 Dn a mol kh CO2 vo dd c cha b mol NaOH . dd thu c c cha mui Na 2CO3 th t s T

= ab

l : A. T 1 B. 1


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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010Cu 149 Cht no sau y khng b phn hy khi un nng ?A. Mg(NO3)2 B. CaCO3 C. CaSO4 D. Mg(OH)2Cu 150 Cho cc cht: kh CO2 (1), dd Ca(OH)2 (2), CaCO3(rn) (3), dd Ca(HCO3)2 (4), dd CaSO4 (5), ddHCl (6). Nu em trn tng cp cht vi nhau th s trng hp xy ra phn ng l

A. 4 B. 5 C. 6 D. 7Cu 151 Nguyn liu chnh dng lm phn, b xng gy, nn tng l

A. vi B. vi sng C. thch cao D. t nCu 152CaCO3khngtc dng c viA. MgCl2 B. CH3COOH C. CO2 + H2O D. Ca(OH)2

Cu 153 Khi cho dung dch Ca(OH)2 vo dung dch Ca(HCO3)2 thy c:A. kt ta trng sau kt ta tan dn B.bt kh v kt ta trng

C. kt ta trng xut hin D. bt kh bay raCu 154 Trng hp no khngc xy ra phn ng i vi dung dch Ca(HCO3)2 khi

A. un nng B. trn vi dd Ca(OH)2 C. trn vi dd HCl D. cho NaClvoCu 155 Phn trm khi lng ca oxi l ln nht trong cht no trong s cc cht cho di y?

A. MgCO3. B. CaCO3. C. BaCO3. D. FeCO3.

Cu 156 Thch cao sng l : A. 2CaSO4. H2O B. CaSO4.2H2OC. CaSO4.4H2O D. CaSO4Cu 157CaCO3 tc dng c vi tt c cc cht trong nhm no sau y?

A. CH3COOH ; MgCl2 ; H2O + CO2 B. CH3COOH ; HCl ; H2O + CO2C. H2SO4 ; Ba(OH)2 ; CO2 + H2O D. NaOH ; Ca(OH)2 ; HCl ; CO2

Cu 158.Trng hp no khng c xy ra phn ng i vi dung dch Ca(HCO3)2 khi :A. un nng B. trn vi dd Ca(OH)2 C. trn vi dd HCl D. cho NaCl vo

Cu 159 C 3 mu nc c cha cc ion sau:(1) Na+, Cl, HCO3-, SO42- ; (2) K+, SO42-, Mg2+, HCO3- ; (3) Ca2+, HCO3-, Cl

Mu nc cng l: A. (1), (2) B. (1), (3) C. (2), (3) D. (1), (2), (3)Cu 160 Cho cc cht: NaCl (1);Ca(OH)2 (2); Na2CO3 (3) ; dd HCl (4). Cht c th lm mm nc cng tmthi l: A. (1), (4) B. (2), (3) C. (2), (3), (4) D. (1), (2), (3), (4)Cu 161Cu no sau y din t ng tnh cht ca kim loi kim th : A. Tnh kh ca kim loi tng theo chiu nng lng ion ha tng dn

B.Tnh kh ca kim loi tng theo chiu nng lng ion ha gim dn .C. Tnh kh ca kim loi tng khi s electron lp ngoi cng ca nguyn t tng .D. Tnh kh ca kim loi tng theo chiu bn knh nguyn t gim dn .

Cu 162Mt mu nc cng c cha Ca(HCO3)2 v CaCl2. Chn mt ha cht thch hp c th lm mmc mu nc cng trn. . HCl B. NaOH C. Na2CO3 D. Ca(OH)2Cu 163Cho s : Ca A B C D Ca .Cng thc ca A, B, C, D ln lt l

A.CaCl2, CaCO3, Ca(HCO3)2, CaSO4 B. Ca(NO3)2, CaCO3, Ca(HCO3)2, CaCl2

C. CaCl2, Ca(HCO3)2, CaCO3, Ca(OH)2 D. CaO, CaCO3, Ca(NO3)2 , CaCl2Bit mi mi tn l mt phn ng ha hc

Cu 164Mt cc nc c cha cc ion Mg2+ , Na+ , SO42 - , Cl - . Nc cha trong cc thuc loi no ?A. Nc mm B. Nc cng tm thiC. Nc cng vnh cu D. Va l nc cng tm thi , va l nc cng vnh cu .

Cu 165 Nhm bn trong mi trng khng kh v nc l doA. nhm l kim loi km hot ng. B. c mng oxit Al2O3 bn vng bo v.C. c mng hidroxit Al(OH)3 bn vng bo v. D. nhm c tnh th ng vi khng kh v nc.Cu 166 Nhm khng tan trong dung dch no sau y?

A. HCl. B. H2SO4. C. NaHSO4. D. NH3Cu 167 Pht biu nodi y l ng?

A. Nhm l mt kim loi lng tnh. B. Al(OH)3 l mt baz lng tnh.C. Al2O3 l oxit trung tnh. D. Al(OH)3 l mt hidroxit lng tnh.Cu 168Trng hp no sau y c xut hin kt ta v lng kt ta ngy cng tng ln n ti a:



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010A. Cho t t dung dch AlCl3 vo dung dch NaOH cho n dB. Cho t t dung dch NaAlO2 vo dung dch HCl cho n dC. Dn kh NH3 vo dung dch AlCl3 cho n dD. Cho dung dch NaOH vo dung dch AlCl3 cho n d

Cu 169 iu ch c nhm, ta c th dng phng php no sau y:A. in phn Al2O3 nng chy 9000C c xc tc criolitB. in phn Al2O3 nng chy 9000C c mng ngnC. in phn dung dch AlCl3 c mng ngn, in cc trD. in phn dung dch NaAlO2 c mng ngn, in cc tr

Cu 170 Nhm hidroxit thu c t cch lm no sau y?A. Cho d dung dch HCl vo dung dch natri aluminat B. Thi d CO2 vo dung dch natri aluminatC. Cho d dung dch NaOH vo dung dch AlCl3 D. Cho Al2O3 tc dng vi H2OCu 171 Dng ho cht no sau y nhn bit c 3 dung dch AlCl 3; ZnSO4; Na2SO4 trong cc l mtnhn: A. Dung dch NH3/AgNO3 B. Dung dch NH3 cho n d C. Dung dch NaOH va D. Dung dch NaOH dCu 172 Criolit l nguyn liu c dng sn xut nhm vi mc ch:A. Lm gim nhit nng chy ca Al2O3

B. Tit kim c nng lng, to c cht lng c tnh dn in tt hn Al 2O3C. To cht lng c t khi nh hn nhm, ni ln b mt nhm ngn cn nhm nng chy b oxi hoD. C A, B, C u ngCu 173 Pht biu no sau y ng khi ni v nhm oxit

A. c sinh ra khi nhit phn mui Al(NO3)3 B. B kh bi CO nhit caoC. Tan c trong dung dch NH3 D. L oxit khng to mui

Cu 174 Ch dng ha cht no sau y phn bit 3 cht rn l Mg, Al v Al 2O3A. Dung dch HCl B. Dung dch KOH C. Dung dch NaCl D. Dung dch CuCl2

Cu 175 C cc dung dch: KNO3, Cu(NO3)2, FeCl3, AlCl3, NH4Cl. Ch dng ha cht no sau y c thnhn bit c cc dung dch trn A. Dung dch NaOH d B. Dung dch AgNO3

C. Dung dch Na2SO4 D. Dung dch HCl

Cu 176 Cc dung dch ZnSO4 v AlCl3 u khng mu. phn bit hai dung dch ny c th dng dungdch ca cht no sau y? A. NaOH B. HNO3 C. HCl D. NH3Cu 177 Hin tng no sau y ng khi cho t t dung dch NH3 n d vo ng nghim dung dch AlCl3

A. Si bt kh, dung dch vn trong sut khng muB. Si bt kh v dung dch c dn do to ra kt taC. Dung dch c dn do to ra kt ta, sau kt ta tan v dung dch li trong sutD. Dung dch c dn do to ra kt ta v kt ta khng tan khi cho d dung dch NH 3

Cu 178Trong nhng cht sau, cht no khng c tnh lng tnh:A. Al(OH)3 B. Al2O3 C. ZnSO4 D. NaHCO3

Cu 179 Cho phng trnh ion rt gn ca phn ng gia Al vi mui Cu 2+: 2Al+3Cu2+2Al3++3CuTm pht biu sai? A. Al kh Cu2+ thnh Cu B. Cu2+ oxi ho Al thnh Al3+

C. Cu2+ b kh thnh Cu D. Cu khng kh Al3+ thnh AlCu 180 Cho NaOH n d vo dung dch cha hai mui AlCl3 v FeSO4 c kt ta A. Nung A c chtrn B. Cho hir d i qua B nung nng c cht rn X. X gm:

A. Al v Fe B. Fe C. Al2O3 v Fe D. B,C u ngCu 181Ngi ta c th dng thng bng nhm ng axit:

A. HNO3 long,nng B. HNO3 long, ngui C. HNO3 c, nng D. HNO3 c, nguiCu 182 Trong phng trnh phn ng ca nhm vi oxit st t (phn ng nhit nhm), tng h s cc chttham gia phn ng (cc h s l nhng s nguyn ti gin) l:

A. 9 B. 10 C. 11 D. 12Cu 183 Cho dung dch NH3 n d vo dung dch cha AlCl3 v ZnCl2 thu c kt ta A. Nung A ccht rn B. Cho lung kh hir i qua B nung nng s thu c cht rn:

A. Al2O3 B. Al2O3 v ZnO C. Al v ZnO D. Al2O3 v ZnCu 184 Khi cho dd NH3 t t n d vo dd Al(NO3)3 v khi dn CO2 t t n d vo ddKAlO2 th c 2trng hp u c hin tng xy ra l :



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010A. To kt ta khng b ho tan B. Lc u to kt ta sau b ho tanC. Khng to kt ta D. Lc u khng c hin tng g xy ra sau to kt ta keo trngCu 185 Trong cng nghip, Al c sn xut:A.Bng cch in phn Bxit nng chy trong criolit. B.Bng phng php thu luyn.C. Bng phng php nhit luyn D.Trong l cao.Cu 186 Trong cc hp cht: CuO, FeO, Al2O3, Zn(OH)2, HAlO2.H2O, SiO2, SO2 c bao nhiu cht lngtnh ? A. 3 B. 4 C. 5 D. 6Cu 187 tinh ch Al2O3 c ln SiO2, Fe2O3 c th dng cc cht theo th t sau:A.dd NaOH c to , CO2 , un nng B.dd HCl , dd NH3 , un nngC.dd HCl , dd NaOH , un nng D.dd H2SO4 , dd NaOH d , un nngCu 188Cu Cho dung dch NH3 n d vo dung dch cha AlCl3 v ZnCl2 thu c kt ta A. Nung Ac cht rn B. Cho lung kh H2 i qua B nung nng s thu c cht rn X. Thnh phn ca X c:

A. Al2O3 B. Zn v Al2O3 C. ZnO v Al D. ZnO v Al2O3Cu 189 Dng Al kh ion kim loi trong oxit iu ch kim loi no sau y?

A. Na B. Ca C. Hg D. AuCu 190 Cho hp kim Al, Fe, Cu vo dung dch Cu(NO3)2 d, cht rn sau phn ng l

A. Fe B. Al C. Cu D. Al v Cu

Cu 191 Pht biu no sau y khng ng?A.Mui KAl(SO4)2.12H2O khng lm trong nc c.B.Tinh th Al2O3 khan l qu nh : corindon, hng ngc,xa phia.C.Qung nhm dng lm vt liu miD.Cng thc ca phn chua l K2SO4.Al2(SO4)3.24H2O

Cu 192 Cho hn hp Al, Mg vo dung dch FeSO4. Sau phn ng thu c cht rn A v dung dch B.Thnh phn ca A , B ph hp vi th nghim l:( Chn p n ng)

A. Al, Mg, Fe; B: Al3+, SO42- B. Mg, Fe; B: Al3+, SO42-

C. Mg, Fe; B:Al3+, Mg2+, SO42- D. Fe; B:Al3+, Mg2+, Fe2+, SO42-

Cu 193 Cho dung dch AlCl3 vo dung dch K2CO3 c d. Hin tng no ng?A. C kt ta trng bn B. C kt ta vng nht

C. C kt ta trng dn n cc i ri tan dn ht D. C kt ta trng v c si bt khCu 194 Cho ba cht rn: Mg, Al, Al2O3 ng trong ba l mt nhn. Ch dng mt thuc th no sau y cth nhn bit c mi cht? A. dung dch HCl B. Dung dch H2SO4

C. Dung dch CuSO4 D. Dung dch NaOHCu 195 Cu hnh electron ca Fe2+ v Fe3+ ln lt lA. [Ar] 3d6, [Ar] 3d34s2 B. [Ar] 3d4 4s2, [Ar] 3d5 C. [Ar] 3d5, [Ar] 3d64s2 D. [Ar] 3d6, [Ar] 3d5

Cu 196 Chn p n ng A. St c 8 electron lp ngoi cng B. St c 2 electron ha trC. St l nguyn t p D. S oxi ha ca st trong cc hp cht thng gp l +2 v +3

Cu 197 Nguyn t X c in tch ht nhn l 26. Cu hnh electron v v tr ca X (chu k, nhm) trong hthng tun hon ln lt l:A. 1s2 2s22p63s23p63d6 , chu k 3 nhm VIB. B. 1s2 2s22p63s23p63d6 4s2 , chu k 4 nhm IIA.

C. 1s2 2s22p63s23p63d5 , chu k 3 nhm VB. D. 1s2 2s22p63s23p63d6 4s2 , chu k 4 nhm VIIIB.Cu 198 Tnh cht vt l no di y khng phi l tnh cht vt l ca Fe?

A. Kim loi nng, kh nng chy B. Mu vng nu, do, d rnC. Dn in v dn nhit tt D. C tnh nhim t

Cu 199 Xt v l tnh, so vi nhm th stA. c tnh nhim t B. dn in tt hn C. d b g hn D. nng chy thp hnCu 200 Nhn xt no khng ng khi ni v Fe ?A. Fe tan c trong dung dch CuSO4B. Fe tan c trong dung dch FeCl3

C. Fe tan c trong dung dch FeCl2D. Fe tan c trong dung dch AgNO3

Cu 201 Nhng thanh st vo dung dch CuSO4. Quan st thy hin tng g?A. Thanh st c mu trng v dung dch nht dn mu xanhB. Thanh st c mu v dung dch nht dn mu xanhC. Thanh st c mu trng xm v dung dch c mu xanhD. Thanh st c mu v dung dch c mu xanh



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010D.10 FeSO4+2KMnO4+ 8H2SO4 5 Fe2(SO4)3 + 2MnSO4 + K2SO4 +8 H2OCu 221 Phn ng no sau y sai ?

A. 2Al+Fe2O30t cao Al2O3+2Fe B. FeO+H2

0t Fe+H2O

C. Fe3O4 +8 HNO3 Fe(NO3)2+2Fe(NO3)3+4H2O D. CuO+CO0

t C Cu+CO2Cu 222 Cho cc phn ng ha hc sau :

1. Fe + 2HCl FeCl2 + H2 2. Fe + Cl2 FeCl2

3. AgNO3 + Fe(NO3)2 Fe(NO3)3 + Ag 4. 2FeCl3 + 3Na2CO3 Fe2(CO3)3 + 6NaCl5. Zn + 2FeCl3 ZnCl2 + 2FeCl2 6. Fe + 4HNO3 Fe(NO3)2 + NO + 2H2O

Hi nhng phn ng no khng ng?A. 2, 4 B. 3, 5, 6 C. 2, 4, 5 D. 2, 5, 6

Cu 223 Oxit no cho sau y khi tc dng vi dung dch H2SO4 long to ra c hai mui ?A. Fe2O3 B. Fe3O4 C. FeO D. Al2O3

Cu 224 Fe c th tan trong dung dch cht no sau y ?A. AlCl3 B. FeCl3 C. FeCl2 D. MgCl2

Cu 225 Nhng 1 l st vo cc dung dch : HCl, HNO3,nguI, CuSO4, FeCl2, ZnCl2, FeCl3. Hi c bao nhiuphn ng ha hc xy ra? A. 2 B. 3 C. 4 D. 5Cu 226 Cho cc cht Cu; Fe; Ag v cc dung dch HCl, CuSO4, FeCl2, FeCl3. S cp cht c phn ng vi

nhau A. 1 B. 2 C. 3 D. 4Cu 227Dy cha cc kim loi u tan c trong dung dch FeCl3 l

A. Cu, Fe. B. Pb, Hg C. Sn, Au. D. Ag, Fe.

Cu 228Oxit no sau y: CrO3(1); Cr2O3(2) ; CrO(3) ; FeO(4); Fe2O3(5) ; Fe3O4(6) ch th hin tnh oxi haA. (5), (6). B. (1), (2). C. (1), (5). D. (3),(4).

Cu 229S cp cht tc dng vi nhau tng i mt: Fe, Cu, Cl2, FeCl2, FeCl3 l:A. 2. B. 3. C. 4. D. 5.

Cu 230Cho kim loi X tc dng vi dung dch H2SO4 long ri ly kh thu c kh oxit kim loi Y. Xv Y c th l: A. Fe v Cu. B. Cu v Fe. C. Cu v Ag. D. Ag v Cu.

Cu 231V tr ca Cu(Z=29) trong bng tun hon cc nguyn t ha hc lA. th 29, chu k 2, nhm IVB. B. th 29, chu k 4, nhm XIB.C. th 29, chu k 4, nhm IA. D. th 29, chu k 4, nhm IB.

Cu 232Kim loi dn in v dn nhit tt, ch km bc lA. Cr. B. Al. C. Cu. D. Au

Cu 233Dy cha cchp cht u khngc tnh cht lng tnhA.NaHCO3, NaHS, NaHSO3. B. CrO, CrO3, Cr2(SO4)3..C. Al(OH)3, Zn(OH)2, Cr(OH)3. D. ZnO, Al2O3,Cr2O3.

Cu 234 Dng dung dch no cho sau y c th phn bit c hai cht rn : Fe 2O3 v FeOA. HNO3 c , nng B. Dung dch NaOH C. Dung dch H2SO4 long D. Dung dch AgNO3Cu 235 Nhn bit cc dung dch mui: Fe2(SO4)3 , FeSO4, FeCl3 ta c th dng ha cht no trong cc ha

cht sau y ? A. Dung dch BaCl2 B. Dung dch BaCl2 v dung dch NaOHC. Dung dch AgNO3 D. Dung dch NaOH

Cu 236 Cho cc dung dch NaCl, FeCl3, NH4Cl, (NH4)2CO3 ng trong cc l ring bit. Kim loi phn bitc tt c dung dch trn l? A. Natri B. ng C. St D. Bari

Cu 237 Munc ngm va ly trong sut, lu ngoi khng kh c cn nu xut hin. Mu ncngm cha A. Fe2+ B. Fe3+. C. Fe(OH)2. D. Fe(OH)3.Cu 238 Qung no sau y khng phi l qung st?

A. Hematit B. Manhetit C. Criolit D. XideritCu 239 Trong s cc loi qung st: FeCO3 (xierit), Fe2O3 (hematit ), Fe3O4 (manherit), FeS2 (pyrit).Qung c cha hm lng Fe ln nht l:

A. FeCO3 B. Fe2O3 C. Fe3O4 D. FeS2Cu 240St ty, dng lm hp ng thc phm, l st trngA. Zn. B. Cr. C. Pb. D. Sn.



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010Cu 241 Cho hn hp X gm Cu v Fe2O3 vo cc ng dung dch H2SO4 long d. Khuy u phn ngxy ra hon ton c dung dch Y v cht rn khng tan Z. Dung dch Y cha

A. Fe2(SO4)3; FeSO4; H2SO4. B. CuSO4; Fe2(SO4)3, H2SO4.C. CuSO4; FeSO4; H2SO4. D. CuSO4; Fe2(SO4)3; FeSO4

Cu 242 Mt loi qung cha st trong t nhin c loi b tp cht. Ha tan qung ny trong ddHNO3thy c kh mu nu bay ra, dung dch thu c cho tc dng vi ddBaCl 2 thy c kt ta trng (khng tan

trong axit mnh). Loi qung lA. Xirit B. Hematit C. Manhetit D. pirit stCu 243 Nguyn tc sn xut gang :A. dng than cc kh st oxyt nhit cao. B. dng kh CO kh st oxyt nhit cao.C. dng oxi oxi ha cc tp cht trong st oxyt. D. loi ra khi st oxyt mt lng ln C, Mn, Si, P, S.Cu 244 Trong qu trnh sn xut gang, x l l cht no sau y ?

A. SiO2 v C B. MnO2 v CaO C. CaSiO3 D. MnSiO3Cu 245 Cho cc ion kim loi: Fe3+ , Mg2+, Al3+, Fe2+, ion c tnh oxi ho mnh nht l

A. Fe2+ B. Mg2+ C. Al3+ D. Fe3+

Cu 246 Kim loi dng ch to cc bn cc cquy l A. Sn. B. Zn. C. Fe. D. Pb.

Cu 247Phn ng no di y l ng?(1) 3Fe + 4H2O > C570

oFe3O4 + 4H2 (2) Fe + H2O > C570

oFeO + H2

(3) ) Fe + Cl20

t FeCl2 (4) Fe + 6HNO3 c ngui Fe(NO3)3 +3 NO2 + 3H2O

(5) Fe + I20t

FeI2 (6) 2Fe + 6HCl 2FeCl3 + 3H2A. 2,3 B. 2,5 C. 1, 6 D. 3,4

Cu 248 Nguyn liu no khng dng luyn gang ?A. Qung st B. Than cc C. Khng kh D. Florua

Cu 249 Dng nam chm, phn bit c hai kim loiA. Sn, Pb. B. Zn, Sn. C. Al, Cu. D. Al, Fe.

Cu 250 Cho s chuyn ha: Fe 3 3( )X YFeCl Fe OH+ + (mi mi tn ng vi mt phn ng).

Hai cht X, Y ln lt l : A. NaCl, Cu(OH)2. B. HCl, NaOH. C. HCl, Al(OH)3. D.Cl2, NaOH.

Cu 251 Cho chui phng trnh phn ng: Fe clo+ A Fe+ B NaOH+ C . Cng thc ca C lA. Fe(OH)2 B. Fe(OH)3 C. Fe2O3 D.NaCl

Cu 252 Cht no di y l cht kh oxit st trong l cao ?A. H2 B. CO C. Al D. Na

Cu 253 Phn ng no sau y xy ra c hai qu trnh luyn gang v luyn gang thnh thp ?A. FeO + CO

0t C Fe + CO2 B. SiO2 + CaO

0t C CaSiO3

C. FeO + Mn0t C Fe + MnO D. S + O2

0t C SO2Cu 254 Trong cc pht biu sau, pht biu no khng ng ?

A. Gang l hp cht ca Fe-C. B. Hm lng C trong gang nhiu hn trong thp.C. Gang l hp kim Fe-C v mt s nguyn t khc. D. Gang trng cha t cacbon hn gang xm.Cu 255 C th dng dung dch no sau y ha tan hon ton mt mu gang ?A. Dung dch HCl B. Dung dch H2SO4 long C. Dung dch NaOH D. Dung dch HNO3 c, toCCu 256 Pht biu no di y cho bit l qu trnh luyn thp ?A. Kh qung st thnh qung st t do. B. in phn dung dch mui st (III).C. Kh hp cht kim loi thnh kim loi t do.D. Oxi ha cc nguyn t trong gang thnh oxit, loi oxit di dng kh hoc x.Cu 257Cho bit Cr c Z=24. Cu hnh electron ca ion Cr3+ l

A. [Ar]3d6 B. [Ar]3d5 C. [Ar]3d4 D. [Ar]3d3

Cu 258 Cc s oxi ha c trng ca crom l

A. +2, +4, +6. B. +2, +3, +6. C. +1, +2, +4, +6. D. +3, +4, +6.Cu 259 Cp kim loi no sau y bn trong khng kh v nc do c mng oxit bo v?A. Fe v Al B. Fe v Cr C. Al v Cr D. Mn v Cr

Cu 260 Cho phn ng: NaCrO2 + Br2 + NaOH Na2CrO4 + NaBr + H2O



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Trng THPT L Thanh Hin T Ha n thi tt nghip 2010Khi cn bng phn ng trn, h s ca NaCrO2 l A. 1 B. 2 C. 3 D. 4Cu 261 Cho cc phn ng: M + 2HCl MCl2 + H2; MCl2 + 2NaOH M(OH)2 + 2NaCl

4M(OH)2 + O2 + 2H2O 4M(OH)3 M(OH)3 + NaOH Na[M(OH)4]M l kim loi no sau y? A. Fe. B. Al. C. Cr. D.

Pb.Cu 262 Mt oxit ca nguyn t R c cc tnh cht sau:

- Tnh oxi ha rt mnh. - Tan trong nc to thnh dung dch hn hp H2RO4 vH2R2O7

- Tan trong dung dch kim to ra anion 24

RO c mu vng.

Oxit l: A. SO3 B. CrO3 C. Cr2O3 D. Mn2O7



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Cu 263 Cu hnh electron ca ion Cu2+ l A. [Ar]3d7 B. [Ar]3d8 C. [Ar]3d9 D. [Ar]3d10

Cu 264 Phn ng ho hc no sau y xy ra:A. Cu2++ 2Ag Cu + 2Ag+ B. Cu+Pb2+ Cu2+ + PbC. Cu+2Fe3+ Cu2++ 2Fe2+ D. Cu+2Fe3+ Cu2++ 2Fe

Cu 265 M t ph hp vi th nghim nhng thanh Cu (d) vo dung dch FeCl3 lA. b mt thanh kim loi ng c mu trng hi xm. B. khi lng thanh ng kim loi

tng ln. C. dung dch t mu vng nu chuyn dn qua mu xanh. D. dung dch c mu vng nu.Cu 266 Khi cho t t dung dch NH3 vo dung dch CuSO4 cho n d th

A. khng thy kt ta xut hin B. c kt ta keo xanh xut hin, sau tanC. c kt ta keo xanh xut hin v khng tan D. sau mt thi gian mi thy xut hin kt

ta.Cu 267 Cho ba hn hp kim loi :Cu-Ag; Cu-Al v Cu-MgDng dung dch ca cp cht no sau y nhn bit cc hn hp trn?

A. HCl v AgNO3 B. HCl v Al(NO3)3 C. HCl v NaOH D. HCl vMg(NO3)2Cu 268 Dung dch no sau y khng ho tan c kim loi Cu?

A. Dung dch FeCl3. B. Dung dch NaHSO4.C. Dung dch hn hp NaNO3 v HCl. D. Dung dch HNO3 c ngui.

Cu 269 Cho cc ion kim loi: Zn2+, Sn2+, Ni2+, Fe2+, Pb2+. Th t tnh oxi ho gim dn lA. Pb2+ > Sn2+ > Fe2+ > Ni2+ > Zn2+. B. Sn2+ > Ni2+ > Zn2+ > Pb2+ > Fe2+.C. Zn2+ > Sn2+ > Ni2+ > Fe2+ > Pb2+. D. Pb2+ > Sn2+ > Ni2+ > Fe2+ > Zn2+.

Cu 270 Cc hp cht trong dy cht no di y u c tnh lng tnh?A. Cr(OH)3, Fe(OH)2, Mg(OH)2. B. Cr(OH)3, Zn(OH)2, Pb(OH)2.C. Cr(OH)3, Zn(OH)2, Mg(OH)2. D. Cr(OH)3, Pb(OH)2, Mg(OH)2.

Cu 271 Hai kim loi X, Y v cc dung dch mui clorua ca chng c cc phn ng ha hc sau:X + 2YCl3 XCl2 + 2YCl2; Y + XCl2 YCl2 + X.

Pht biu ng l:A. Ion Y2+ c tnh oxi ha mnh hn ion X2+ B. Kim loi X kh c ion Y2+.C. Kim loi X c tnh kh mnh hn kim loi Y. D. Ion Y3+ c tnh oxi ha mnh hn

ion X2+.Cu 272 Cho dy cc cht: Cr(OH)3, Al2(SO4)3, Mg(OH)2, Zn(OH)2, MgO, CrO3. S cht trong dyc tnh cht lng tnh l A. 5. B. 2. C. 3. D. 4.Cu 273 Mnh khng ng l:

A. Fe2+ oxi ho c Cu. D. Tnh oxi ha ca cc ion tng theo th t: Fe2+, H+, Cu2+,Ag+

B. Fe kh c Cu2+ trong dung dch. C. Fe3+ c tnh oxi ha mnh hn Cu2+

Cu 274 C 4 dung dch mui ring bit: CuCl2, ZnCl2, FeCl3, AlCl3. Nu thm dung dch KOH (d) ri

thm tip dung dch NH3 (d) vo 4 dung dch trn th s cht kt ta thu c lA. 4. B. 1. C. 3. D. 2.Cu 275 Cho cc phn ng:

(1) Cu2O + Cu2S (2) Cu(NO3)2 (3) CuO + CO (4) CuO + NH3S phn ng to ra kim loi Cu l A. 2. B. 3. C. 1. D. 4.Cu 276 Cho mt t bt Fe vo dung dch AgNO3 d , kt thc phn ng c dung dch c cha cht tan

A. Fe(NO3)2 B. Fe(NO3)3 C. Fe(NO3)3 , AgNO3 D. AgNO3 , Fe(NO3)3 , Fe(NO3)2Cu 277 Tch Ag ra khi hn hp Fe, Cu, Ag th dng dung dch no sau y ?

A. HCl B. HNO3 m c C. Fe(NO3)3 D. NH3Cu 278 Kh no sau y gy ra hin tng ma axit?

A. CO2 B. SO2 C. CH4 D. NH3

Cu 279 Dn kh b nhim qua giy lc tm dung dch Pb(NO3)2 thy dung dch xut hin vt mu en.Khng kh b nhim bn kh no?A. Cl2 B. NO2 C. SO2 D. H2S


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Cu 280 Chn mt ha cht no sau y thng dng (r tin) loi b cc cht HF, NO2, SO2 trong khthi cng nghip v cation Pb2+, Cu2+ trong nc thi cc nh my ?

A. NH3 B. NaOH C. Ca(OH)2 D.NaClCu 281 Nguyn nhn gy bnh long xng ngi cao tui l

A. do s thiu ht canxi trong mu. B. do s thiu ht st trong mu.C. do s thiu ht km trong mu. D.do s thiu ht ng trong mu.

Cu 282 Cho pht biu sau: Cc nguyn nhn gy nhim khng kh l1. nn chy rng. 2. kh thi cng nghip t cc nh my v cc phng tin giao thng vn ti.3. th v kh ht nhn.4. qu trnh phn hy xc ng vt, thc vt.

Nhng pht biu nglA. 1, 2, 3 B. 1, 2, 4 C. 1, 2, 3, 4 D. 1, 3, 4Cu 283 Mt s cht thi dng dung dch c cha cc ion : Cu2+, Fe3+, Hg2+, Zn2+, Pb2+. Dng cht no sauy loi b cc ion trn?A. Gim n. B. Nc vi trong d. C. Mui n. D. Dung dch xt d.Cu 284 Kh CO2 thi ra nhiu c coi l nh hng xu n mi trng vA. gy ma axit B. rt c C. to bi cho mi trng D. gy hiu ng nh knhCu 285 Tnh cht no sau y ca than hot tnh gip con ngi ch to cc thit b phng c, lc nc?

A. Khng c hi. B. t chy than sinh ra kh cacbonic.

C. Hp th tt cc cht kh, cht tan trong nc. D. Kh cc cht kh c, cc cht tan trong nc.Cu 286 Cho pht biu sau:Cc tc nhn ha hc gy nhim mi trng nc gm:(1) thuc bo v thc vt; (2) phn bn ha hc; (3) cc kim loi nng: Hg, Pb, Sn;(4) cc anion: NO3-, PO43-, SO42-

Nhng pht biu nglA. 1, 2, 3, 4 B. 2, 3, 4 C. 1, 2, 3 D. 1, 3, 4Cu 287 Cho pht biu sau:

(1) Cc nguyn nhn gy nhim mi trng t l; (2) cc vi sinh vt gy bnh cha c x l.(3) hot ng phun ni la; (4) s r r cc ha cht c hi v kim loi nng.(5) vic s dng lm dng thuc bo v thc vt.

Nhng pht biu nglA. 2, 3, 4 B. 1, 3, 4 C. 1, 2, 4 D. 1, 2, 3Cu 288 Nc sch khng b nhim l

A. nc khng mu, khng mi, trong sut. B. nc un si, khng c vi sinh vt gy hi.C. nc c nng cc ion kim loi nng nm trong gii hn cho php ca t chc Y t Th gii.D. nc khng cha cc cht nhim bn, vi khun gy bnh v cc cht ha hc gy nh hng sc khe conngi.Cu 289 Nc thi trong sinh hotA. ch gy nhim ngun nc B. gy nhim ngun nc v khng khC. gy nhim ngun nc v t D. gy nhim c t, nc v khng khCu 290 Hin tng thin nhin no sau y khnggy nhim?A. Ni la phun v chy rng B.Nc bin bc hi v thi ra xc ng vt.C. Bo lt v lc xoy. D. Qu trnh sa lng v ngng tCu 291 Cc tc nhn gy nhim khng kh tn ti

A. ch dng kh B. dng kh v dng lngC. dng kh v dng rn D. c dng kh, lng v rn

Cu 292 Khi trong nh c nhiu dng mi mua v mi sn, ta nnA. khng lu trong nh v thng xuyn m rng ca. B. lun trong nh v ng cht caC. khng lu trong nh v ng cht ca D. lun trong nh v rng caCu 293 Ngun nng lng no khnggy nhim mi trng?A. Nng lng gi, nng lng thy in v nng lng mt tri.B. Nng lng nhit in, nng lng in nguyn t v nng lng thy in.C. Nng lng mt tri, nng lng nhit in v nng lng thy triuD. Nng lng ht nhn, nng lng thy triu v nng lng du kh.Cu 294 Ion gy ra cng ca nc l

A. Na+, K+ B. Zn2+, Cu2+ C. Mg2+, Ca2+ D. Al3+, Fe3+

Cu 295 Pht biu no sau y khng ng?A. Khng kh sch l khng kh khng cha cht kh no


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B. C th nhn thy mi trng b nhim qua mi, mu scC. C th dng dng c : sc k, my o pH xc nh mc nhim mi trngD. Nc cng l nc b nhimCu 296 x l cc ion gy nhim ngun nc gm: Zn2+, Fe3+, Pb2+, Hg2+ ngi ta dngA. Ca(OH)2 B. CH3COOH C. HNO3 D. C2H5OHCu 297 C th dng Pb(NO3)2 xc nh s c mt ca kh no sau y trong khng kh?

A. H2S B. CO2 C. SO2 D. NH3Cu 298 Ngun nhin liu khng gy nhim mi trng lA. xng, du B. kh H2 C. gas D. than

Cu 299 Cch bo qun thc phm an ton lA. dng fomonB. dng ur C. dng nc D. dng mui

Cu 300 Hin tng thng tng ozon l doA. kh CO2 B. kh SO2 C. hp cht ca Clo D. hp cht ca lu hunh

Cu 301 SO2, NO2 l nhng kh gy ra hin tngA. ma axit B. hiu ng nh knh C. thng tng ozon D. sng m

Cu 302 Cht gy nghin c trong thuc l lA. Cafin B. Moocphin C. Hassish D. Nicotin

Cu 303 Kh gy hin tng hiu ng nh knh l:A. H2S B. SO2 C. NH3 D. CO2

Phn 3-CU HI TRC NGHIM V BI TONCu 304Cho 3,56 g hn hp 2 kim loi ha tr 2 tan hon ton trong dd H 2SO4 long thu 1,792 lt H2 (kc).Khi lng mui thu c l (gam):

A. 18,92 B. 11,24 C. 7,56 D. 12,36Cu 305 Cho 22,8 gam hn hp Mg v Al tc dng ht vi dung dch HCl d. Sau phn ng thy khi lngdung dch tng ln 20,6 gam. S mol HCl tham gia phn ng l

A. 2,2 mol B. 1,1 mol C. 1,13 mol D. 1,25 molCu 306 Ha tan hon ton 3,89 gam hn hp Fe v Al trong 1,0 lt dung dch HCl va , thu c 2,24 ltH2 (kc). Nng mol/l ca dung dch HCl l

A. 0,3M. B. 0,1M. C.0,2M. D.0,15M.Cu 307 Ha tan hon ton 25,0 gam hn hp 2 kim loi A, B bng dung dch HCl thu c 25,71 gam muikhan v V lt kh X. Th tch kh X thu c kc l

A. 0,224 lt. B.2,24 lt. C.4,48 lt. D.0,448 ltCu 308 Ha tan 36,72g hn hp 2 mui Cacbonat kim loi ha tr I v II bng dd HCl d thu c 8,064 litCO2 (kc) . Nu c cn dd th thu c bao nhiu gam mui khan ?

A. 40,68g B. 81,36g C. 111,96g D. Khng xc nhcCu 309 Cho 12,2g hn hp hai mui cacbonat ca kim loi kim hai chu k kin tip tc dng ht vidung dch HCl, thu c 2,24 lt kh (ktc). Khi lng mui to thnh sau phn ng l :

A. 2,66g B. 13,3g C. 1,33g D. 26,6gCu 310Cho 33 gam hn hp 2 kim loi tan hon ton trong HCl d thy c 26,88 lt kh thot ra (kc) v ddX, c cn dd X th khi lng hn hp mui khan thu c l (gam):

A. 78,8 gam B. 44 gam C. 88 gam D. khng xc nh cCu 311 Cho 27 gam hn hp cc kim loi Al, Cr, Fe tc dng vi lng d dung dch H 2SO4 long nng(trong iu kin khng c khng kh), thu c dung dch X v 15,68 lt kh H 2 ( ktc). C cn dung dch X(trong iu kin khng c khng kh) c m gam mui khan. Gi tr ca m l

A. 85,2. B. 91. C. 97,6. D. 94,2.Cu 312 Cho 5 g hn hp 2 mui cacbonat ca kim loi ho tr II tc dng ht vi dung dch HCl thy thot

ra V lt kh ktc. Dung dch thu c em c cn thy c 7,2 g mui khan. Gi tr ca V lA. 2,24 lt B. 4,48 lt C. 3,36 lt D. 1,12 ltCu 313 Ha tan 20 gam hn hp 2 mui cacbonat kim loi ha tr I v II bng lng d dung dch HCl thuc dung dch X v 4,48 lt CO2 (kc) thot ra. Tng khi lng mui trong dung dch X l


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A. 1,68 gam B. 22,2 gam C. 28,0 gam D. 33,6 gamCu 314 Thi kh CO d qua 1,6 g Fe2O3 nung nng n phn ng hon ton. Khi lng Fe thi c l:

A. 0,56gam B. 1,12gam C. 4,80gam D. 11,2gamCu 315 Kh hon ton 48 gam Fe2O3 bng kh CO nhit cao. Kh i ra sau phn ng c dn vodung dch Ca(OH)2 d. Khi lng kt ta thu c l

A. 45 gam B. 60 gam C. 75 gam D. 90 gam

Cu 316 kh hon ton 88 gam hn hp gm Fe, FeO, Fe3O4, Fe2O3 n Fe cn va 11,2lit kh CO(kc). Khi lng st thu c l:A. 90gam B. 85gam C. 80gam D. 60gam

Cu 317 Cho kh CO kh hon ton n Fe mt hn hp gm FeO; Fe2O3; Fe3O4 thy c 4,48 lt kh CO2(ktc) thot ra. Th tch kh CO (ktc) tham gia phn ng l

A. 1,12 lt B. 2,24 lt C. 3,36 lt D. 4,48 ltCu 318 Cho kh CO qua ng ng a gam hn hp gm CuO, Fe 3O4, FeO, Al2O3 nung nng, kh thot rac cho vo nc vi trong d thy c 30 gam kt ta trng. Sau phn ng , cht rn trong ng s c khilng 202 gam. Khi lng a gam ca hn hp cc oxit ban u l

A. 200,8 gam B. 216,8 gam C. 206,8 gam D. 103,4 gamCu 319 Hn hp A gm FeO, Fe3O4, Fe2O3. Trong hn hp A mi oxit u c 0,75 mol. Khi lng ca hn

hp A l A. 348 gam. B. 174 gam. C. 147 gam. D. 384 gamCu 320Ngm mt l km trong 100ml dung dch AgNO3 0.2M. Khi phn ng kt thc thu c bao nhiugam Ag? A. 2,16(g) B. 0,54(g) C. 1,62(g) D. 1,08 (g)Cu 321 Ngm mt l km trong 100ml dung dch AgNO3 0.1M. Khi phn ng kt thc khi lng l kmtng bao nhiu gam?

A. 0,65(g) B. 1,51(g) C. 0,755(g) D. 1,3 (g)Cu 322 Ngm mt inh st trong 100ml dung dch CuSO4. Sau khi phn ng kt thc ly inh st ra khidung dch, ra nh, lm kh thy khi lng inh st tng thm 3,2gam. Nng ban u ca dung dchCuSO4 l bao nhiu?

A. 0,4 (M) B. 4(M) C. 1,5(M) D. 2(M)Cu 323 Ha tan 5 gam mui CuSO4.5H2O vo nc c 500ml dung dch CuSO4. Cho dn bt st vo

50ml dung dch trn, khuy nh cho n khi ht mu xanh. Khi lng st tham gia phn ng l bao nhiugam? A. 1,12g B. 0,112g C. 1,75g D. 0,175gCu 324 Ngm mt vt bng ng c khi lng 20g trong 250g dung dch AgNO3 8%. Khi ly vt ra khidung dch th khi lng AgNO3 trong dung dch gim 17%. Khi lng ca vt sau phn ng l bao nhiugam? A. 27 (g) B. 10,76(g) C.21,52(g) D. 12,70(g)Cu 325 Ngm mt l Pb trong dung dch AgNO3 sau mt thi gian lng dung dch thay i 1,6g. Khi khi lng l Pb thay i nh th no?

A. Khng thay i B. Gim 1,6 g C. Tng 1,6 g D. Gim 16gCu 326 Ngm mt l km trong dung dch mui sunfat c cha 11,8g ion kim loi in tch 2+. Sau phnng, khi lng l km gim 1,2g. cng thc ha hc ca mui sunfat l:

A. CuSO4 B. CdSO4 C. NiSO4 D. FeSO4Cu 327Ngm mt l km trong dung dch c ha tan 4,16 g CdSO4. Phn ng xong, khi lng l km tng4,7%. Khi lng l km trc phn ng l bao nhiu gam?

A. 40 (g) B. 60(g) C. 80(g) D.20(g)Cu 328Ngm l km trong dung dch cha 0,3mol CuSO4. Phn ng xong thy khi lng l km thay inh th no? A. tng 0,3g B. tng 0,03g C. gim 0,3 g D. khng thay iCu 329Ngm mt l st trong dung dch CuSO4. Sau mt thi gian phn ng, ly l st ra khi dung dch,ra nh, lm kh, em cn thy khi lng tng thm 4,8g. Khi lng Cu bm trn l st l bao nhiu gam?

A. 38,4 (g) B. 24,6(g) C. 19,2(g) D. 28,8(g)Cu 330 Nhng thanh st vo dung dch CuSO4, sau mt thi gian ly thanh st ra ra sch, sy kh thykhi lng tng 6 gam. Khi lng Cu bm vo thanh st l

A. 46,5 gam B. 47 gam C. 47,5 gam D. 48 gamCu 331 Ngm mt vt bng st c khi lng 30 gam trong dd CuSO 4. Sau mt thi gian ly vt ra khi ddlau kh, em cn thy vt nng 30,8 gam. Lng Cu bm ln vt l:

A. 1.6 gam B. 6,4 gam C. 3.2 gam D. Khng xc nh c .


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Cu 332 Nhng mt l st nng 8g vo 100ml dung dch CuSO 4 2M. Sau mt thi gian ly l st ra cn lithy nng 8,8g. Xem th tch dung dch khng thay i th nng mol/lt ca CuSO 4 trong dung dch sau

phn ng l: A. 1 M B. 1,5 M C. 2 M D. 0,5 MCu 333 Nhng thanh st vo 100ml dung dch Cu(NO3)2 0,2M. n khi phn ng kt thc th thy khilng thanh st A. tng 0,16 gam B. tng 1,6 gam C. gim 0,16 gam D. gim 1,12 gamCu 334 Ngm mt inh st nng 8 gam trong dung dch CuSO4, sau mt thi gian ly ra inh st ra, sy kh,

cn nng 8,5714 gam. Khi lng st tham gia phn ng lA. 1,9999 gam. B. 3,9998 gam. C. 0,7998 gam. D. 4,2000 gam.Cu 335Mt thanh Al c khi lng 8,1g c nhng vo 500ml dd AgNO3 2M, sau mt thi gian ly ra,thanh Al c khi lng 67,5g. Khi lng Ag bm vo thanh Al l bao nhiu gam:

A. 129,6 B. 64,8 C. 21,6 D. 16,2Cu 336Ngm mt l st trong 250 ml dd Cu(NO3)2 0,6 M n khi kt thc phn ng , ly l st ra cn lithy khi lng l st tng 2,4 % so vi khi lng ban u . Tnh khi lng l st trc phn ng ?

A. 32 g B. 50 g C. 0,32 g D. 0,5 gCu 337 Ngm 10,8 gam Fe vo dung dch Cu(NO3)2, phn ng xong thu c 11,6 gam hn hp rn.Lng ng bm vo st l A. 0,8 gam. B.6,4 gam. C.3,2 gam. D.1,6 gam.Cu 338 Ngm 1 thanh kim loi Cu c khi lng 20g vo trong 250 g dd AgNO3 6,8% n khi ly thanh Cu

ra th khi lng AgNO3 trong dd l 12,75 g . Khi lng thanh Cu sau phn ng l:A. 25,7g B. 14,3g C. 21,9g D. 21,1gCu 339 Sc kh CO2 vo dung dch nc vi c cha 0,2 mol Ca(OH)2 ,thu c 16 g kt ta. S mol CO2cn dng l A. 0,16mol B. 0,2mol

C. 0,24 mol hoc 0,16 mol D. 0,2mol hoc 0,16molCu 340Hy xc nh hm lng lmit CaCO3.MgCO3 trong qung, bit rng khi nung 80gam qung trn

ngi ta thu c 22,4 lit kh CO2 (o 0oC v 0,8at).A.92%. B.29% C. 46% D. Kt qu khc.

Cu 341Cho 24 lt(ktc) hn hp kh CO v CO2 trong CO2 chim 39,2% v th tch i qua dung dchcha 22,2gam Ca(OH)2. Khi lng kt ta thu c sau phn ng l:

A.18gam. B. 42gam. C. 30gam D. 36 gamCu 342Cho V lit kh CO2 ktc hp th ht vo 100ml dung dch Ca(OH)2 0,35M, kt thc th nghim thuc 2 g kt ta. Gi tr V l

A. 0,448 B. 0,784 C. 0,448 hoc 0,784 D. 0,448 hoc1,12Cu 343 Hp thu hon ton 1,344lit CO2 (ktc) vo 1,25 lit dung dch Ba(OH)2 a (M) thu c 7,88 g kt ta.Gi tr ca a l A. 0,016 B. 0,04 C. 0,03 D. 0,02Cu 344 Cho 8,01 g AlCl3 vo 100 ml dung dch NaOH 2M. Sau khi phn ng kt thc thu c bao nhiugam kt ta

A. 3,12 g B. 4,68 g C. 5,20 g D. 3,3 gCu 345 Cho 200ml dung dch NaOH vo 400ml dung dch Al(NO3)3 0,2M thu c 4,68 gam kt ta. Nng

mol ca dung dch NaOH ban u lA. 0,6M v 1,1M B. 0,9M v 1,2M C. 0,8M v 1,4M D. 0,9M v 1,3M

Cu 346 Trn 100ml dung dch AlCl3 1M vi 200ml dung dch NaOH 2,25M uc dung dch X. kt tahon ton ion Al3+ trong dung dch X di dng hidroxit cn dng mt th tch kh CO 2 (ktc) l

A. 2,24 lt B. 3,36 lt C. 1,12 lt D. 6,72 ltCu 347 Cho 3,42g Al2(SO4)3 vo 50ml dung dch NaOH thu c 1,56 g kt ta v dung dch X. Nng mol/lit ca dung dch NaOH l

A. 1,2M B. 2,4M C. 3,6 M D. 1,2M v 3,6MCu 348Trong mt cc ng 200ml dung dch AlCl3 2M. Rt vo cc Vml dung dch NaOH c nng amol, ta c mt kt ta; em sy kh v nung n khi lng khng i c 5,1g cht rn. Nu V= 200mlth a c gi tr no? A. 2M B. 1,5M hay 3M

C. 1M hay 1,5M D. 1,5M hay 7,5MCu 349Cho 200ml dung dch HCl 1M vo mt dung dch c cha a mol NaAlO 2 c 7,8g kt ta. Gi trca a l: A. 0,025 B. 0,05 C. 0,1 D. 0,125


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Cu 350 Cho 200ml dung dch HCl vo 200ml dung dch NaAlO2 2M thu c 15,6 g kt ta keo, nng Mca dung dch HCl l

A. 0,1M B. 0,3M C. 0,1M v 0,3M D. 0,1M v 0,5MCu 351 Cho 200ml dung dch H2SO4 vo 400ml dung dch NaAlO2 1M thu c 7,8 g kt ta keo,nng Mca dung dch H2SO4 l

A. 0,25M v 3,25M B. 0,25M C. 3,25M D. 0,5M v 6,5M

Cu 352Ha tan 15,12 gam mt kim loi bng dung dch H2SO4 thu c 41,04 gam mui sunfat.Hy xcnh tn kim loi dng A. Ca B. Al C. Fe D. MgCu 353Ha tan han ton 23,04 gam mt kim loi vo dd HNO 3 long d, thu c 5,376 lt (kc) kh NO.kim loi cho l: A. ng B. Magie C. Bc D. StCu 354Ho tan a gam mt kim loi bng dung dch H 2SO4 long , c cn dung dch sau phn ng thu c5a gam mui khan .Kim loi trn l :

A. Ca. B. Mg C. Fe D. ZnCu 355 Nung 39,4g mui cacbonat (khan) ca 1 kim loi kim th th thy c CO 2 v hi nc thot ra. DnCO2 vo dd Ca(OH)2 d thu c 20g kt ta. Vy kim l

A. Be B. Mg C. Ca D. BaCu 356 kh hon ton 8g mt oxit kim loi cn dng 3,36 lit H 2 (ktc). Kim loi M l:

A. Mg B. Cu C. Fe D. CrCu 357 t mt kim loi trong bnh kn ng kh clo thu c 97,5 gam mui clorua v nhn thy th tchkh clo trong bnh gim 20,16 lt (ktc). Kim loi bi cho l

A. Fe B. Zn C. Cu D. AlCu 358 in phn mui clorua ca 1 kim loi M nng chy thu c 1,56g kim loi thot ra catot v 448cm3 kh (ktc). Cng thc ca mui em in phn l:

A. NaCl B. KCl C. BaCl2 D. CaCl2Cu 359 in phn bng in cc tr dung dch mui sunfat ca kim loi ha tr II vi dng in c cng 3,22A. Sau 1 gi thy khi lng catot tng 3,84g. Kim loi l:

A. Zn B. Cu C. Ni D. SnCu 360 Cho 8,28 gam cacbonat ca kim loi R ho tr I tc dng vi mt lng d dung dch HCl. Sau phnng thu c 8,94 gam mui . Kim loi R l :

A. Li B. Na C. K D. AgCu 361Ha tan hon ton mt kim loi ha tr 2 c khi lng 2,88g vo 500 ml dd H 2SO4 0,3M. dd sau

phn ng c trung ha bi 120 ml dd NaOH 0,5M. Kim loi ban u l:A. Zn B. Ca C. Mg D. Ba

Cu 362 Cho 24,32 gam hn hp gm hai hidroxit ca hai kim loi kim thuc hai chu k lin tip tc dngvi mt lng d dung dch HCl th thu c 33,2 gam mui clorua. Cng thc ca hai hidroxit l :A. LiOH v NaOH B. NaOH v KOH C. KOH v RbOH D. RbOH v CsOHCu 363 in phn Al2O3 nng chy vi dng in cng 9,65A trong thi gian 3000 giy, thu c 2,16gam Al. Hiu sut ca qu trnh in phn l

A. 60% B. 70% C. 80% D. 90%Cu 364 Cho 34,25g mt kim loi kim th tc dng ht vi nc, thu c 6,11 lt kh hidro (o 25oC v1atm). Kim loi kim th dng l

A. Be B. Mg C. Ca D. BaCu 365 Hn hp X gm hai kim loi kim X, Y thuc hai chu k k tip nhau trong bng THTH. Ly 4,48g X ha tan hon ton vo nc thu c 1,792 lt kh H2 (ktc). Hai kim loi X, Y l

A. Li v Na. B. Na v K. C. K v Rb. D. Rb v Cs.Cu 366Cho 4,84 gam hn hp gm 2 kim loi nhm IIA ,thuc 2 chu k lin tip tc dng hon ton vidung dch HCl d cho 3,696 lt H2 (kc). Hai kim loi l

A. Ca v Sr B. Be v Mg C. Mg v Ca D. Sr v BaCu 367 Cho 1,625 gam kim loi X tc dng ht vi dung dch HCl thu c dung dch mui trong kim

loi c s oxi ha +2 v 0,56 lt H2 (ktc). Kim loi X bi cho lA. Mg B. Zn C. Fe D. Ni

Cu 368 Ha tan 13,5gam kim loi R bng axit H2SO4 c nng, thu c 16,8lit kh SO2 (kc). Kim loi Rl: A. Mg B. Al C. Fe D. Cu


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Cu 369 Oxi ho hon ton 42 gam bt st thu c 58 gam mt oxt duy nht cng thc ca oxt lA. FeO B. Fe2O3 C. Fe3O4 D. FeO hoc Fe2O3

Cu 370 t chy 1 mol Fe trong Oxi c 1 mol st oxit. Cng thc phn t ca oxit ny l:A. FeO B. Fe2O3 C. Fe3O4 D. hn hp FeO v Fe2O3

Cu 371 Kh mt oxit st bng CO nhit cao, phn ng xong ngi ta thu c 3,36 gam Fe v 2,016litCO2 (ktc). Cng thc phn t ca oxit st l cng thc no sau y:

A. FeO B. Fe3O4 C. Fe2O3 D. Khng xc nh cCu 372 Kh hon ton 19,2 gam bt oxit st bng CO nhit cao, phn ng xong khi lng cht rngim 5,76 gam. Cng thc oxit st dng :

A. FeO B. Fe2O3 C. Fe3O4 D. FeO v Fe2O3Cu 373 Kh hon ton 0,25 mol FexOy bng kh CO nhit cao thy to ra 0,75 mol CO 2 . Cng thcFexOy l A. FeO B. Fe3O4 C. Fe2O3 D. Khng xc nh c.Cu 374 Kh hon ton 0,72 mol mt oxit st c cng thc FexOy bng Al thu c 0,96 mol Al2O3 theo s phn ng sau: FexOy +Al

0t C Fe + Al2O3. Vy cng thc ca oxit st lA. FeO B. Fe2O3 C. Fe3O4 D. Khng xc nh c.

Cu 375Ha tan 10,5 gam hn hp gm Al, Mg bng dd HCl d. Sau phn ng khi lng dd axit tng thm9,4 gam. Khi lng Al v Mg trong hn hp u l (gam):

A. 8,1 ; 2,4 B. 2,7 ; 7,2 C. 5,4 ; 5,1 D. 6,75 ; 3,75Cu 376Ha tan 21,24 gam hp kim cha Cu- Ag trong dung dch HNO3 long d, kt thc phn ng thuc 3,36 lit kh (kc) . Thnh phn % mi kim loi (theo khi lng ) trong hp kim l :

A. Cu ( 60% ) , Ag (40% ) B. Cu ( 72,8%) , Ag (27,2%)C. Cu ( 35% ), Ag ( 65%) D. Cu(54,24%), Ag(45,76%).

Cu 377Cho 15,6 gam hn hp Al v Al2O3 tc dng vi dung dch NaOH d thu c 6,72 lt kh H2 (ktc).Khi lng tng cht trong hn hp ban u ln lt l

A. 8,1 gam v 7,5 gam. B. 5,4 gam v 10,2 gam.C. 3,2 gam v 12,4 gam. D. 5,6 gam v 10 gam.

Cu 378Cho 20,84gam hn hp bt gm Mg, Fe tc dng va vi 800ml dung dch HCl. Kt thc phn

ng thu c 13,44lit kh (ktc). Thnh phn % v khi lng ca Mg, Fe v nng mol/lit ca dung dchHCl l bao nhiu?A. 46,15%; 53,85%; 1,5M B. 11,39%; 88,16%; 1,5MC. 53,85%; 46,15%; 1M D. 46,15%; 53,85%; 1M

Cu 379:Ha tan 18 gam hp kim Cu Ag trong dung dch HNO3, tao ra c 44,04 gam hn hp muiCu(NO3)2 v AgNO3. Thnh phn % ca hp kim l bao nhiu?

A. 50% Cu v 50% Ag B. 64%Cu v 36%AgC. 36% Cu v 64% Ag D. 60% Cu v 40% Ag

Cu 380Hp kim Fe Zn c cu to tinh th dung dch rn. Ha tan 9,32gam hp kim ny bng dung dchaxit HCl d thot ra 2,688 lit kh hir (ktc). Thnh phn ca hp kim l:

A. 72% Fe v 28% Zn B. 73% Fe v 27% Zn

C. 72,1% Fe v 27,9% Zn D. 27,3% Fe v 62,7% ZnCu 381 Cho 42 gam hn hp Y cha K2CO3 v Na2CO3 tc dng vi mt lng d dung dch HCl th thuc 8,064 lt CO2 (ktc). T l phn trm theo khi lng ca cc cht trong Y l :

A. 39,43% v 60,57% B. 56,56% v 43,44%C. 20% v 80% D. 40% v 60%

Cu 382Nung nng 8,22 gam hn hp gm Na2CO3 v NaHCO3 cho n khi khi lng hn hp khng i ,thu c 6,36 gam cht rn . T l phn trm ca NaHCO3 trong hn hp l :A. 30,65 % B. 61,31 % C. 69,34 % D. 34,66 %Cu 383 Nung nng 25,2g NaHCO3 n khi khi lng cht rn khng thay i th ngng . Bit lng khto ra sau phn ng c th ho tan ti a 13,48g hn hp CaCO 3 v MgCO3 trong nc . T l phn trm vkhi lng ca MgCO3 trong hn hp l :A. 37,31 % B. 62,69 % C. 74,62 % D. 25,38 %Cu 384 Cho 100 ml dung dch hn hp gm Al2(SO4)3 1M v CuSO4 2M tc dng vi dung dch NaOH d.Kt ta thu c em nung n khi lng khng i thu c cht rn c khi lng l


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A. 4 g B. 16 g C. 8 g D. 10 gCu 385 Ho tan 18,8 gam ng bch (hp kim Cu Ni, gi thit khng c tp cht khc) vo dung dchHNO3 long d. Khi phn ng xy ra hon ton, thu c 0,18mol NO v 0,006 mol N2. Phn trm khilng Cu trong hp kim bng A. 74,89% B. 69,04 % C. 27,23% D. 25,11%Cu 386 in phn dd CuSO4 vi cng dng in 2,5 A trong thi gian 1 gi 4 pht 20 giy. LngCuSO4 trong dd gim: A. 32 gam B. 16 gam C. 8 gam D. 4 gam

Cu 387Cho dng in 3A i qua dung dch ng (II) nitrat trong mt gi th lng ng kt ta trn catt lbao nhiu gam? A. 12,8 (g) B. 3,56(g) C. 31,8(g) D. 7,12(g)Cu 388in phn n ht 0,3mol Cu(NO3)2 trong dung dch vi in cc tr, th sau in phn khi lngdung dch gim bao nhiu gam?

A. 4,8 (g) B. 19,2(g) C. 24(g) D.56,4(g)Cu 389in phn (in cc tr) dung dch cha 0,02mol NiSO4 vi cng dng in 5A trong 6 pht 26giy. Khi lng catt tng ln bao nhiu gam?

A. 0,00 (g) B. 0,16(g) C. 0,59(g) D.1,18(g)Cu 390 in phn dung dch CuCl2 vi in cc tr .Sau mt thi gian thu c 0,32 gam Cu catot vmt lng kh X anot . Hp th hon ton lng kh X trn vo 200 ml dung dch NaOH ( nhit thng) . Sau phn ng , nng NaOH cn li l 0,05M ( gi thit th tch dung dch khng thay i ) Nng ban

u ca dung dch NaOH lA. 0,15M B. 0,2M C. 0,1M D. 0,05MCu 391 in phn vi in cc tr dung dch mui sunfat kim loi ha tr hai , vi cng dng in3(A). Sau 1930 giy thy khi lng catot tng 1,92 gam . Kim loi trong mui sunfat l

A. Fe B. Ca C. Cu D. MgCu 392in phn nng chy 44,4 gam MCl2 th thu c 0,24 mol kh clo anot . Bit hiu sut phn ngca qu trnh in phn l 60% . Khi lng nguyn t ca M l

A. 24 B. 40 C. 64 D. 87Cu 393 in phn dung dch CuSO4 ngi ta thu c 11,2 lt kh (ktc) anot . Vy khi lng kim loisinh ra catot l A. 50 gam B. 32 gam C. 64 gam D. 60 gamCu 394 Cho dng in c cng 5A qua 2 lt dung dch KCl 1,5M trong bnh in phn c vch ngn vi

in cc tr . Khi ngng in phn anot thu c 8,96 lt kh (ktc) v dung dch X . Thi gian in phn lA. 9750 giy B. 5790 giy C. 4 gi 20 pht D. 15440 giy

Cu 395 Sau mt thi gian in phn dung dch Cu(NO3)2 vi in cc tr , khi lng dung dch gim 6,4gam . Khi lng Cu thu c catot l

A. 5,12 gam B. 6,4 gam C. 5,688 gam D. 10,24gamCu 396 iu ch c 10,8 gam Ag th cn in phn dung dch AgNO 3 vi cng dng in l 5,36Atrong thi gian l A. 20 pht B. 25 pht C. 30 pht D. 35 phtCu 397 in phn dd cha 0,81g mui clorua ca mt kim loi M ha tr ( II) n khi catot c kh thot rath ngng , thu c 134,4ml kh anot (kc). M l :

A. Zn B. Cu C. Mg D. FeCu 398 in phn c mng ngn (in cc tr) 200ml dd MgCl2 0,15M vi cng dng in 0,2A trong

9650 giy . Nng mol /l ca dung dch MgCl2 sau khi in phn l:A. 0,12M B. 0,15M C. 0,5M D. 0,1M

Cu 399in phn 200 ml dung dch CuSO4 2M (in cc tr) cho n khi trong dung dch khng cn ionCu2+ th ngng in phn (hiu sut in phnl 100%). Khi lng dung dch sau in phn gim:

A. 12,8 gam B. 19,2 gam C. 16 gam D. 32 gamCu 400 in phn 500g dd NaCl 7,02% ( in cc tr, c mn ngn) Kh thu c Catot l kh no? Cth tch l bao nhiu lit? A. Kh Clo , 3,36 lit B. Kh Clo , 6,72 lit

C. Kh Hidro , 3,36 lit D. Kh Hidro , 6,72 litCu 401 in phn 220ml dung dch CuCl2 2M trong thi gian 2 gi vi dng in I = 2,68A. Khi lng Cusinh ra catot l: A. 6,4g B. 3,2g C. 0,32g D. 0,64g

Cu 402 Khi in phn dung dch mui tan ca Ag trong 772 giy thu c 1,08g Ag cc m. Cng dng in l: A. 1,25 A B. 3,5 A C. 2,5 A D. 4,5 ACu 403 Ho tan 4,68 gam Kali vo 50g nc . Nng phn trm ca dung dch thu c l :

A. 8.58 % B. 12.32 % C. 8,56 % D. 12,29 %


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Cu 404 Th tch dd HCl 2M cn dng ha tan va ht 33,6g NaHCO3 l :A. 100 ml B. 200 ml C. 500 ml D. Kt qa khc

Cu 405 tc dng ht vi 20 g hn hp gm Ca v MgO cn V ml dung dch HCl 4M. Gi tr ca V lA. 400 ml B. 450 ml C. 500 ml D. 250 ml

Cu 406 Cho hn hp CaO v KOH tc dng vi dung dch HCl thu c hn hp 2 mui clorua c t l mol1 : 1. Phn trm khi lng ca CaO v KOH trong hn hp ln lt l

A. 20% v 80% B. 30% v 70% C. 40% v 60% D. 50% v 50%Cu 407 hn hp dung dch axit (gm 0,1 mol H2SO4 v 0,2 mol HCl) vo hn hp kim ly va gm0,3 mol NaOH v 0,05 mol Ca(OH)2. Khi lng mui to ra l

A. 25,5g B. 25,6g C. 25,7g D. 25,8gCu 408 Cho 17,64 gam hn hp NaHCO3 v MgCO3 tc dng ht vi dung dch HCl. Kh thot ra c dnvo dung dch Ca(OH)2 d thu c a g kt ta. Gi tr ca a l

A. 10g B. 20g C. 21g D. 22gCu 409 Trong 1 lt dung dch Al2(SO4)3 0,15M c tng s mol cc ion do mui phn li ra (b qua s thy

phn ca mui) lA. 0,15 mol B. 0,3 mol C. 0,45 mol D. 0,75 molCu 410 Cho 5,4 gam Al vo 100 ml dung dch KOH 0,2M. Sau khi phn ng xy ra hon ton th tch khH2 (ktc) thu c l A. 4,48 lt B. 0,448 lt C. 0,672 lt D. 0,224 lt

Cu 411 t chy bt Al trong bnh ng kh Cl2 d, sau khi phn ng xy ra hon ton, khi lng cht rntrong bnh tng 4,26 g. Khi lng Al phn ng lA. 2,16 g B. 1,62 g C. 1,08 g D. 3,24 g

Cu 412 C 2 l st khi lng bng nhau v bng 11,2 g. L 1 cho tc dng vi clo d, l 2 ngm trong ddHCl d. Khi lng mui clorua thu c trong 2 trng hp trn

A. Bng nhau B. Lng mui st (III) ln hnC. Lng mui st (III) nh hn D. Khi lng mui st (III) thu c l 25,4 g

Cu 413 Cn iu ch 6,72 lt H2 (ktc) t Fe v dung dch HCl hoc dung dch H2SO4 long. Chn axit no s mol cn ly nh hn? A. HCl B. Hai axit u nh nhau

C Khng xc nh c v khng cho lng st. D. H2SO4 longCu 414 Cho 5 gam bt st un nng trong oxi mt thi gian c 6,44g hn hp Fe2O3 v Fe d. Khi

lng st d l (gam): A. 1,64 B. 1,44 C. 3,36 D. 3,66Cu 415 37 gam bt st ngoi khng kh mt thi gian thy khi lng tng ln thnh 43,4 gam. Tnh %khi lng st b oxi ho , gi thit sn phm oxi ho ch l oxt st t.

A. 48,8% B. 45,4% C. 81,4% D. 99,9%Cu 416 Nung mt mu thp c khi lng 10gam trong O2 d thu c 0,153 lit kh CO2 (kc). Thnh phn

phn trm theo khi lng ca cacbon trong mu thp l:A. 0,82% B. 0,84% C. 0,85% D. 0,86%

Cu 417 Y l mt loi qung manhetit cha 80 % Fe3O4. Khi lng st ti a c th iu ch t 1,5 tn Y lA. 0,504 tn B. 0,405 tn C. 0,869 tn D. 1,086 tn

Cu 418 Hn hp X gm Cu v Fe, trong Cu chim 43,24% khi lng. Cho 19,73g X tc dng ht vidung dch HCl thy c V lit kh (ktc) bay ra. Gi tr ca V l

A. 1,12 lit B. 2,24 lit C. 4,48 lit D. 3,36 litCu 419 Nhng thanh Cu vo dung dch cha 72.6gam Fe(NO3)3. Khi Fe(NO3)3 phn ng ht th khi lngthanh ng

A. khng i. B. gim 1,2 gam. C. gim 9,6 gam. D. gim 8 gam.Cu 420 Nung mt lng xc nh mui Cu(NO3)2 . Sau mt thi gian dng li ngui ri em cn thykhi lng gim 10.8 gam. S mol kh thot ra ( ktc ) trong qu trnh ny l

A. 1 mol B.. 2 mol C. 0,25 mol D. 1,25 molCu 421 Ho tan hn hp gm 6,4 gam Fe2O3 v 6,4 gam Cu bng 400ml dung dch HCl 2M. Khi phn ngxy ra hon ton th khi lng cht rn cha b ho tan bng

A. 0,0gam B. 5,12gam C. 2,56 gam D. 6,4 gamCu 422 Cho 4,8 gam hn hp gm CuO v Fe2O3 tc dng ht vi dung dch HCl c hai muic t l mol1:2. S mol HCl tham gia phn ng l:

A. 0,6 mol B. 0,14mol C. 0,16mol D. 0,18mol


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Cu 423A l dd CuSO4 . chuyn ton b lng SO42- trong 20 g dd A thnh hp cht kt ta , cn 26 mldd BaCl2 0,02 M.Tnh nng % ca dd A ? A. 0, 20 % B.0, 25 % C. 0,416 M D. 0,512 MCu 424t nhm trong bnh cha kh Cl2 , sau phn ng thy khi lng bnh tng 4,26 g . Khi lng Al tham gia phn ng l :

A. 3,24 g B. 1,08 g C. 1,62 g D. 0,86 g

Cu 425 Hp th hon ton 4,48 lit CO2 (kc) cn dng 500 ml dd NaOH thu c 17,9g mui . Nng mol/l ca dd NaOH l :A. 0,5M B. 0,75M C. 1M D. Kt qa khc

Cu 426Cho t t dd X c cha a mol HCl vo dd Y c cha b mol Na2CO3 thu c V lt kh (kc) . Biuthc V theo a , b l : A. V = 22,4b B. V = 22,4a C. V = 22,4(a-b) D. C A v CCu 427 Mt cc nc c cha 0,3 mol Mg2+ ; 0,2 mol Na+ ; 0,2 mol SO42- v x mol Cl -. Gi tr x l

A. 0,2 mol B. 0,3 mol C. 0,4 mol D. 0,5 molCu 428 Mt cc nc c cha 0,2 mol Mg2+, 0,1 mol Na+, 0,1 mol SO42 -, 0,3 mol Cl -. Khi lng cht tanc trong cc nc bi cho l

A. 17,55 gam B. 24 gam C. 41,55 gam D. 27,35 gamCu 429 Khi lng bt nhm cn dng thu c 53.2 gam crom t Cr2O3 bng phn ng nhit nhm gi

s hiu sut phn ng l 100%) lA. 13,5 g B. 27 g C. 40,5 g D. 18,9 gCu 430 Cho lung H2 i qua 0,8 gam CuO nung nng. Sau phn ng c 0,64 gam cht rn . Hiu sut

phn ng kh CuO thnh Cu l: A. 60% B. 75% C. 80%D. 90%Cu 431 Nung nng hn hp gm 10,8 g bt Al vi 16 g bt Fe2O3 (khng c khng kh), nu hiu sut phnng l 90% th khi lng Al2O3 thu c l

A. 8,16 g B. 10,20 g C. 9,18 g D. 16,32 gCu 432 Kh hon ton m gam hn hp CuO v PbO cn 8,1 gam kim loi Al, sau phn ng thu c 50,2gam hn hp hai kim loi. Gi tr m l

A. 57,4 B. 54,4 C. 53,4 D. 56,4Cu 433 Trn 24 gam Fe2O3 vi 10,8 g Al ri nung nhit cao (khng c khng kh). Hn hp sau phn

ng em ha tan vo dung dch NaOH d thu c 3,36 lt kh (ktc). Hiu sut ca phn ng nhit nhm lA. 75% B. 60% C. 80% D. 90%

Cu 434 Thc hin phn ng nhit nhm hon ton m gam Fe2O3 vi 8,1gam Al. em ha tan cht thu csau phn ng bng dung dch NaOH d th c 1,68lit H2 (kc) thot ra. Tr s ca m l:

A. 16gam B. 14gam C. 24gam D. 20gamCu 435 Cho 1,5 lt NH3 ( ktc ) qua ng ng 16g CuO nung nng thu c cht rn X. Th tch dung dchHCl 2M tc dng ht vi X l:

A. 1 lt B. 0,1 lt C. 0,01 lt D. 0,2 lt.Cu 436 28 gam bt st ngoi khng kh mt thi gian thy khi lng tng ln thnh 34,4 gam. Tnh %khi lng st b oxi ho , gi thit sn phm oxi ho ch l oxt st t.

A. 48,8% B. 60,0% C. 81,4% D. 99,9%

Cu 437 Kh han ton hn hp Fe2O3 v CuO bng CO thu c s mol CO2 to ra t cc oxit c t l tngng l 3:2. Phn trm s molca Fe2O3 v CuO trong hn hp ln lt l

A. 50% v 50% B. 75% v 25% C. 75,5% v 24,5% D. 25% v 75%Cu 438 Nung hn hp bt gm 15,2 gam Cr2O3 v m gam Al nhit cao. Sau khi phn ng hon ton,thu c 23,3 gam hn hp rn X. Cho ton b hn hp X phn ng vi axit HCl (d) thot ra V lt kh H 2 (ktc). Gi tr ca V l (cho O = 16, Al = 27, Cr = 52)

A. 7,84. B. 4,48. C. 3,36. D. 10,08.Cu 439Th tch dung dch HNO3 0,1 M cn thit ho tan ht 9,6 gam Cu theo phn ng :

Cu + HNO3 .+ NO +.. l : A. 2 lit B. 1,5 lit C. 4 lit D. 0,4 lit.Cu 440Ha tan m gam Al vo dung dch HNO3 rt long ch thu c hn hp kh gm c 0,03 mol N 2O v0,02 mol NO. Gi tr ca m l

A. 27 g B. 2,7 g C. 1,62 g D. 1,5 g


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Cu 441 Ha tan hon ton m gam bt Al v dung dch HNO3 d ch thu c 11,2 lt hn hp kh X gmNO v N2O (ktc) c t l mol l 2:3. Gi tr ca m l

A. 24,3 B. 27 C. 16,2 D. 22,5Cu 442 Oxi ho 0,4 mol Al cn bao nhiu mol H2SO4 long?

A. 0,75 mol B. 0,5 mol C. 0,6 mol D. 1,2 molCu 443

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