Tài liệu 1 _photo - 1_

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tm hiu v ng k hc, hy gi in ti s 09798.17.8.85 (gp Thy Qunh)Bin son v ging dy: Thy Ng Xun Qunh (E_mail: [email protected] Website: hoahoc.org)

HN

NH

OO

HN

HN

OO

| 1 |

Cu 1. bo qun cc kim loi kim cnA. Ngm chng vo nc B. Gi chng trong l c y np knC. Ngm chng trong ru nguyn cht D. Ngm chng trong du ho

Cu 2. in phn mui clorua kim loi kim nng chy thu c 1,792 lt kh ktc anot v 6,24 gam kim loi

catot. Cng thc ho hc em in phn lA. LiCl B. NaCl C. KCl D. RbClCu 3. Trong cc phn ng sau, phn ng no trong ion Na+ b kh thnh nguyn t Na

A. 4Na + O2 2Na2O B. 2Na + 2H2O 2NaOH + H2

C. 4NaOH dpnc 4 Na + O2 + 2H2O D. 2Na + H2SO4 Na2SO4 + H2

Cu 4. Trong qu trnh in phn dung dch NaCl, cc m xy raA. S kh ion Na+ B. S kh phn t ncC. S oxi ho ion Na+ D. S oxi ho phn t ncCu 5. Cho 6,08 gam hn hp NaOH v KOH tc dng ht vi dung dch HCl to ra 8,3 gam hn hp muiClorua. S gam mi hiroxit trong hn hp ln lt lA. 2,4 gam v 3,68 gam B. 3,2 gam v 2,88 gam C. 1,6 gam v 4,48 gam D. 0,8 gam v 5,28 gam

Cu 6. Nung nng 100 gam hn hp gm Na2CO3 v NaHCO3cho n khi lng khng i cn li 69 gamcht rn. % khi lng mi cht trong hn hp u lA. 63% v 37% B. 42% v 58% C. 16% v 84% D. 84% v 16%

Cu 7 Cho 6 lt hn hp CO2 v N2ktc i qua dung dch KOH to ra 2,07 gam K2CO3 v 6 gam KHCO3. %th tch ca CO2 trong hn hp l

A. 42% B. 56% C. 28% D. 50% .

Cu 8. Cho 5 gam hn hp Na v Na2O v tp cht tr tc dng ht vi nc thot ra 1,792 lt kh ktc. Trungho dung dch sau phn ng cn 100 ml dung dch HCl 2M. % khi lng mi cht trong hn hp ban u l

A. 80% Na ; 18% Na2O ; 2% tp cht B. 73.6% Na ; 24.8% Na2O ; 1.6 % tp chtC. 73,6% Na ; 1,6% Na2O ; 24,8% tp cht D. 92% Na ; 6,9% Na2O ; 1,1% tp chtCu 9. Tnh lng kt ta to thnh khi trn ln dung dch cha 0,0075 mol NaHCO3 vi dung dch cha 0,01mol Ba(OH)2

A. 0,73875 gam B. 1,4775 gam C. 1,97 gam D. 2,955 gam

Cu 10. Nhm cc kim loi no sau y u tc dng c vi nc lnh to dung dch kimA. Na, K, Mg, Ca B. Be, Mg, Ca, Ba C. Ba, Na, K, Ca D. K, Na, Ca, Zn

Cu 11. Cc ion no sau y u c cu hnh 1s22s22p6A. Na+ , Ca2+ , Al3+ B. K+ , Ca2+ , Mg2+ C. Na+ , Mg2+ , Al3+ D. Ca2+ , Mg2+ , Al3+

Cu 12. Chn th t gim dn hot ng ho hc ca cc kim loi kim

A. Na>K>Cs>Rb>Li B. Cs>Rb>K>Na>Li C. Li>Na>K>Rb>Cs D. K>Li>Na>Rb>CsCu 13. Phng trnh in phn no sai

A. 2ACln dpnc 2A + nCl2 B. 4MOH

dpnc 4M + 2H2O

C. 4AgNO3 + 2H2O dpdd 4Ag + O2 + 4HNO3 D. 2NaCl + 2H2O

mnxdpdd, H2 + Cl2 + 2NaOH

Cu 14. Hin tng no xy ra khi cho Na kim loi vo dung dch CuSO4A. Si bt kh khng mu v c kt ta mu xanh B. B mt kim loi c mu , dung dch nht muC. Si bt kh khng mu v c kt ta mu D. B mt kim loi c mu , c kt ta mu xanhCu 15. Pht biu no di y l ngA. Kim loi kim c nhit nng chy v nhit si thp do c lin kt trong mng tinh thbn vng

B. Kim loi kim c khi lng ring nh do nguyn t c bn knh ln v cu trc tinh th km c khtC. Kim loi kim c cng cao do lin kt kim loi trong mng tinh th kim loi kim bn vngD. Kim loi kim c t khi ln v thuc loi kim loi nng

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HN

NH

OO

HN

HN

OO

| 2 |

Cu 16. Cho hn hp cc kim loi kim Na, K ho tan ht vo nc c dung dch A v 0,672 lt H2ktc. Thtch dung dch HCl 0,1M cn trung ho ht 1/3 dung dch A l

A. 100 ml B. 200 ml C. 300 ml D. 600 ml

Cu 17. Ho tan m gam Na kim loi vo nc thu c dung dch A. Trung ho dung dch A cn 100 ml dung

dch H2SO4 1M. Tnh mA. 2,3 gam B. 4,6 gam C. 6,9 gam D. 9,2 gam

Cu 18. Trn 100 ml dung dch hn hp HCl 0,4 M v H2SO4 0,1M vi 400 ml dung dch hn hp NaOH 0,1Mv Ba(OH)2 xM, thu c kt ta v 500 ml dung dch c pH = 12. Tnh x

A. 0,05125 M B. 0,05208 M C. 0,03125M D. 0,01325M

Cu 19. Trn 200 ml dung dch H2SO4 0,05 M vi 300 ml dung dch NaOH 0,06M.pH ca dung dch to l:A. 2,7 B. 1,6 C. 1,9 D. 2,4

Cu 20. Cho a mol CO2 hp th vo dung dch cha 2,1a mol NaOH. Dung dch thu c c gi tr pHA. khng xc nh B. pH > 7 C. pH < 7 D. pH = 7

Cu 21. Cho 0,001 NH4Cl vo 100 ml dung dch NaOH c pH = 12 v un si, sau lm ngui, thm vo 1 tphenolphtalein, dung dch thu c c mu

A. xanh B. hng C. trng D. khng muCu 22. Th tch H2sinh ra khi in phn dung dch cng 1 lng NaCl c mng ngn (1) v khng c mngngn (2) lA. bng nhau B. (2) gp i (1) C. (1) gp i (2) D. khng xc nhCu 23. Trn 150 ml dung dch ( Na2CO3 1M v K2CO3 0,5 M) vi 250 ml dung dch HCl 2M th th tch khCO2 sinh ra iu kin tiu chun l

A. 2,52 lt B. 5,04 lt C. 3,36 lt D. 5,6 lt

Cu 24. Thm t t n ht dung dch cha 0,02 mol K2CO3 vo dung dch cha 0,03 mol HCl. Lng kh

CO2thu c iu kin tiu chun l:A. 0,448 lt B. 0,224 lt C. 0,336 lt D. 0,112 ltCu 25. Xoa Na2CO3.nH2O cha 72,72% oxi. Vy n c gi tr l

A. 6 B. 8 C. 10 D. 12

Cu 26. Hy chn phng n ng iu ch Na kim loi1. in phn nng chy NaCl 2. in phn dung dch NaCl c mng ngn xp3. in phn nng chy NaOH 4. Kh Na2O nhit cao bng H2A. 1 v 2 B. 1 v 3 C. 1 v 4 D. 2 v 4

Cu 27. Dung dch X cha 24,4 gam hn hp 2 mui Na2CO3 v K2CO3. Thm dung dch cha 33,3 gam CaCl2vo dung dch X thu c 20 gam kt ta v dung dch Y. S mol mi mui trong dung dch X l

A. 0,12 mol Na2CO3 v 0,08 mol K2CO3 B. 0,1 mol Na2CO3 v 0,1 mol K2CO3

C. 0,08 mol Na2CO3 v 0,12 mol K2CO3 D. 0,05 mol Na2CO3 v 0,15 mol K2CO3

Cu 28. in phn c mng ngn xp 500 ml dung dch NaCl 4M (D=1,2 g/ml). Sau khi anot thot ra 17,92lt Cl2ktc th ngng in phn. Hy chn gi tr ng ca nng C% ca NaOH trong dung dch sau in

phn (nc bay hi khng ng k)A. 8,26% B. 11,82% C. 12,14% D. 15,06%

Cu 29. Nhit phn hon ton 2,45 gam 1 mui v c X thu c 672 ml O2ktc. Phn cht rn cn li cha52,35% K v 47,65% Clo . Cng thc phn t ca mui X l

A. KClO B. KClO2 C. KClO3 D. KClO4

Cu 30. Cn trn 2 dung dch NaOH 3% v 10% theo t l khi lng nh th no c dung dch NaOH 8%.T l khi lng m1 ca dung dch NaOH 3% v m2 ca dung dch NaOH 10% lA. m1 : m2 = 1 : 2 B. m1 : m2 = 2 :1 C. m1 : m2 = 5 : 2 D. m1 : m2 = 2 : 5

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HN

NH

OO

HN

HN

OO

| 3 |

Cu 31. Trong 1 ci cc ng 1 mui cacbonat ca kim loi ho tr I. Thm t t dung dch H2SO4 10% vo cccho n khi kh va thot ra ht thu c dung dch mui sunfat nng 13,63%. Kim loi ho tr I l

A. Li B. Na C. K D. Ag

Cu 32. Cho m gam Na tc dng ht vi p gam nc thu c dung dch nng x%. Lp biu thc tnh nng

x% theo m, p. Chn biu thc ng

A. x% =pm

m

4644

100.40.

B. x% =pm

m

4644

100.80.

C. x% =pm

m

4646

100.40.

D. x% =pm

m

4646

100.80.

Cu 33. X,Y, Z l 3 hp cht ca 1 kim loi ho tr I, khi t nng nhit cao cho ngn la mu vng. X tcdng vi Y to thnh Z. Nung nng Y thu c cht Z v 1 cht kh lm c nc vi trong, nhng khng lmmt mu dung dch nc Br2. Hy chn cp X,Y,Z ng

A. X l K2CO3 ; Y l KOH ; Z l KHCO3 B. X l NaHCO3 ; Y l NaOH ; Z l Na2CO3

C. X l Na2CO3 ; Y l NaHCO3 ; Z l NaOH D. X l NaOH ; Y l NaHCO3 ; Z l Na2CO3

Cu 34. Trn 0,2 lt dung dch NaOH 3% ( d= 1,05 g/ml) vi 0,3 lt dung dch NaOH 10% ( d = 1,12 g/ml ) thu

c dung dch X c nng C% lA. 5,15% B. 6,14% C. 7,35% D. 8,81%Cu 35. Cho 4,9 gam kim loi kim M vo 1 cc nc. Sau 1 thi gian lng kh thot ra vt qu 7,5 ltktc. Kim loi kim M l

A. Li B. Na C. K D. Rb

Cu 36. Cu hnh e lp ngoi cng no ng vi kim loi kimA. ns

2np

1B. ns

1C. ns

2np

5D. ns

2np

2

Cu 37. Nhng cu hnh e no ng vi ion ca kim loi kim1. 1s

22s

22p

12. 1s

22s

22p

6 3. 1s

22s

22p

44. 1s

22s

22p

63s

15. 1s

22s

22p

63s

23p

6

Hy chn p n ngA. 1 v 4 B. 1 v 2 C. 1 v 5 D. 2 v 5

Cu 38. Cho s bin ho Na X Y Z T Na. Hy chn th t ng ca cc cht X,Y, Z, TA. Na2CO3 ; NaOH ; Na2SO4 ; NaCl B. NaOH ; Na2SO4 ; Na2CO3 ; NaCl

C. NaOH ; Na2CO3 ; Na2SO4 ; NaCl D. Na2SO4 ; Na2CO3 ; NaOH ; NaCl

Cu 39. NaHCO3 l hp cht lng tnh vA. Dung dch NaHCO3 c pH > 7B. V phn t c cha c Na v HC. V khi nhit phn to ra Na2CO3, CO2, H2OD. V n c kh nng tc dng vi baz (v d NaOH) v c kh nng tc dng vi axit (v d HCl)

Cu 40. Cho 16,8 lt CO2ktc hp th t t vo 600 ml dung dch NaOH 2M. Hi thu c nhng cht g ? Vc s mol l bao nhiu?

A. NaOH 0,45 mol ; NaHCO3 0,75 mol B. Na2CO3 0,25 mol ; NaHCO3 0,75 mol

C. NaHCO3 0,45 mol ; Na2CO3 0,3 mol D. Na2CO3 0,45 mol ; NaHCO3 0,3 mol

Cu 41. sn xut H2 v O2ngi ta tin hnh in phn 5000 gam dung dch KOH 14% (vi in cc tr)vi cng dng in 268A trong vng 10 gi. Gi s hiu sut in phn 100% (nc bay hi khng ngk). Tnh C% ca KOH trong dung dch sau in phn. Chn p n ng

A. 15,8% B. 17,07% C. 20,02% D. 23,14%

Cu 42. Ho tan 16,15 gam hn hp NaCl v NaBr vo nc sau cho tc dng vi lng d dung dch

AgNO3, thu c 33,15 gam kt ta. Tnh khi lng ca mi mui trong hn hp ban uA. 10 gam NaCl ; 6,15 gam NaBr B. 8,21 gam NaCl ; 7,94 gam NaBrC. 6,66 gam NaCl ; 9,49 gam NaBr D. 5,85 gam NaCl ; 10,3 gam NaBr

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HN

NH

OO

HN

HN

OO

| 4 |

Cu 43. Ho tan 17,75 gam hn hp NaCl v KBr vo nc thnh dung dch. Sc kh Cl2d vo dung dch, sau em c cn dung dch, thu c 13,3 gam mui khan. Tnh khi lng ca mi mui trong hn hp ban u

A. 5,85 gam NaCl ; 11,9 gam KBr B. 6,77 gam NaCl ; 10,98 gam KBr

C. 7,21 gam NaCl ; 10,54 gam KBr D. 8,42 gam NaCl ; 9,33 gam KBr

Cu 44. Cho 23 gam Na vo 500 gam nc thu c dung dch X v H2, coi nc bay hi khng ng k . Tnhnng C% ca dung dch X. Hy chn p n ng, chnh xc nht

A. 7,6482% B. 7,6628% C. 7,6815% D. 8%

Cu 45. Cho 2,3 gam Na vo 500 ml dung d ch NaOH 4% (d= 1,05g/ml) thu c dung dch X. Th tch coikhng i 500 ml, nc bay hi khng ng k . Tnh nng mol ca dung dch X

A. 2,12M B. 1,05M C. 1,25M D. 1,5M

Cu 46. Cn thm bao nhiu gam Na2O vo 500 ml dung dch NaOH 0,095M c dung dch NaOH 0,101 M.Th tch dung dch coi khng i, nc bay hi khng ng k

A. 1,15 gam B. 0,186 gam C. 0,093 gam D. 0,04 gam

Cu 47. Cn ho tan bao nhiu gam KOH vo nc c c 800 ml dung dch KOH c pH = 13A. 11,2 gam B. 8,96 gam C. 5,6 gam D. 4,48 gam

Cu 48. Trn 400 ml dung dch HCl 0,5 M vi 100 ml dung dch KOH 1,5M, sau pha trn ta thu c 500 mldung dch c pH = x. Tnh x

A. 3 B. 2,5 C. 2 D. 1

Cu 49. Trn 400 ml dung dch HCl 0,5 M vi 100 ml dung dch KOH aM, sau pha trn ta thu c 500 mldung dch c pH = 13. Tnh a

A. 1,5 B. 2,5 C. 2 D. 2,55

Cu 50. Dung dch X cha 0,6 mol NaHCO3 v 0,3 mol Na2CO3. Thm rt t t dung dch cha 0,8 mol HClvo dung dch X c dung dch Y v V lt kh CO2ktc. Thm vo dung dch Y nc vi trong d thy to

thnh m gam kt ta. Tnh th tch V v khi lng mA. 11,2 lt CO2 ; 90 gam CaCO3 D. 11,2 lt CO2 ; 40 gam CaCO3

B. 16,8 lt CO2 ; 60 gam CaCO3 C. 11,2 lt CO2 ; 60 gam CaCO3

1D 2C 3C 4A 5C 6C 7C 8B 9B 10C

11C 12B 13B 14A 15B 16B 17B 18C 19D 20B

21D 22B 23B 24C 25C 26B 27B 28B 29C 30D

31B 32B 33D 34C 35B 36B 37B 37C 39D 40D

41B 42 43 44B 45C 46C 47D 48D 49B 50D

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