Bi tp trc nghim chng in li

Bi tp trc nghim chng in li

Cu1: Pht biu no sau y ng:

A. Mui n l cht in li

B. Axit nitric khng l cht in li

C. ng saccaroz l cht khng in li

D. Cht in li l cht phn li thnh cc ion

Cu 2: Cho cc cht sau: HCl , KOH, NaCl, CH3COOH cc cht in li mnh gm:

A. HCl , KOH , NaCl B . KOH, NaCl , CH3COOH

C. HCl , NaCl , CH3COOH D . KOH , NaClCu 3: dung dch cht no sau y khng dn in:

A. CH3OH

B. CuSO4

C. NaCl

D. HCl.

Cu 4: Hiroxit no sau y khng phi l hiroxit lng tnh

A. Zn(OH)2 B. Al(OH)3

C. Ca(OH)2

D. Pb(OH)2Cu 5 phng trnh in li no sau y c biu din ng:A. Na2CO3( 2Na+ + CO32- B. HClO H+ + ClO-C. NaOH Na+ + OH-

D. NH3 + H2O ( NH4+ + OH-

Cu 6 Trng hp no sau y khng xy ra phn ng c

A. NaHSO4, + NaOH

C. NaNO3 + CuSO4 B. CuO + HNO3

D. Al2(SO4)3 + Ba(OH)2Cu 7: Cho cc dung dch mui NH4Cl, Cu(NO3)2, Na2CO3, Na2S, NaNO3, NaCl. Cc dung dch c pH < 7 l:

A. NH4Cl, Cu(NO3)2 B. Na2CO3, Na2S

C. NaNO3, NaCl D. NH4Cl, NaNO3Cu 8: Cho cc dung dch mui NH4Cl, Cu(NO3)2, Na2CO3, Na2S, NaNO3, NaCl. Cc dung dch c pH > 7 l:

A. NH4Cl, Cu(NO3)2 B. Na2CO3, Na2S

C. NaNO3, NaCl D. NH4Cl, NaNO3Cu 9: Dung dch mui no c pH= 7

A. NaCl, NaNO3, Al2(SO4)3 C. NaCl, NaNO3, K2SO4

B. K2SO4, FeCl3, NH4Cl D. Tt c u sai

Cu 10: Phn ng trao i ion thc hin c nu

A. Sn phm to thnh c cht khng tan, hay kt ta c mu d nhn bit

B. Sn phm to thnh c cht d bay hi, to mi c trng

C. Sn phm to thnh c cht d bay hi

D. C A, B, C u ng

Cu 11: Cho dung dch Na2SO4 tc dng vi dung dch BaCl2, phn ng xy ra v sn phm to thnh c

A. Cht kt ta B. C nc

C. Cht d bay hi D. Cht in li yu

Cu 12: Dung dch CH3COONa tc dng c vi dung dch HCl v sn phm to thnh c

A. Cht kt ta B. C nc

C.Cht d bay hi D. Cht in li yu

Cu 13: Phn ng gia dung dchNa2CO3 v dung dch CaCl2 c phng trnh ion thu gn l

A. Na+ + Cl- NaCl

B. Ca2+ + CO32- CaCO3 C. 2Na+ + 2Cl- + Ca2+ + CO32- ( CaCO3 + 2 NaCl D. p n khc Cu 14: Ion OH- c th phn ng vi cc ion no sau y:

A. H+, NH4+, HCO3- C. Fe2+, Zn2+, Al3+ E. Tt c A,B,C ,D u ng

B. Cu2+, Mg2+, Al3+ D. Fe3+, HSO4-, HSO3-

Cu 15: Ion CO32- khng phn ng vi nhng ion no sau y

A. NH4+, Na+, K+ C. Ba2+, Cu2+, NH4+, K+ E. Tt c u sai

B. Ca2+, Mg2+ D. H+, NH4+, Na+, K+Cu 16: Dung dch cha ion H+ c th phn ng vi dung dch cha ion hay phn ng vi cc cht rn no di y

A. CaCO3, Na2CO3, Ba(HCO3)2 C. Cu(OH)2, Fe(OH)2, FeO, CuO

B. OH-, CO32-, Na+, K+ D. HSO3-,HCO3-, Na+, Ca2+E.Tt c cc cht v dung dch trn u phn ng c vi dung dch cha ion H+Cu 17: Al(OH)3 l mt hiroxit lng tnh, phn ng no sau y chng minh c iu ?

Al(OH)3 + 3HCl AlCl3 + 3H2O

(1)

Al(OH)3 + NaOH NaAlO2 + 2H2O(2)

2Al(OH)3 Al2O3 + 3H2O

(3)

A. (1) B. (2)

C. (3)

D. (1), (2)

E. (2), (3)

Cu 18: phng trnh S2- + 2H+ ( H2S l phng trnh ion thu gn ca phn ng :

A. FeS + HCl ( FeCl2 + H2S

B. 2NaHSO4 + Na2S ( 2Na2SO4 + H2S.

C. 2HCl + K2S (2KCl + H2S

D. BaS + H2SO4 ( BaSO4 + H2S.

Cu 19: Cho cc cp cht sau y: (I) Na2CO3 + BaCl2 ; (II) (NH4)2CO3 + Ba(NO3)2 ; (III) Ba(HCO3)2 + K2CO3 (IV) BaCl2 + MgCO3 . Nhng cp cht khi phn ng c cng phng trnh ion thu gn l:

A. (I) B. (I), (II)

C. (I), (II), (III)

D. (I), (II), (III), (IV).

Cu 20: Trn 200 ml dung dch H2SO4 0,05 M vi 300 ml dung dch NaOH 0,06 M. pH ca dung dch to thnh l:

A. 2,7

B. 1,6

C. 1,9

D. 2,4Cu 21: Ho tan 20ml dung dch HCl 0,05M vo 20ml dung dch H2SO4 0,075M th dung dch thu c c pH l

A. 1 B. 2C. 3

D. 1,5

E. Kt qu khc

Cu 22: Cn bao nhiu lt dung dch HCl pH= 2 tc dng vi 100 ml dung dch NaOH pH =12 thu c dung dch c pH=3?

A. 0,1 lt

B. 11/9 (lit)

C. 0,2 lt

D. 12/9 (lt)