BÀI TẬP KIM LOẠI KIỀM - KIỀM THỔ - NHÔM

8/1/2019 BI TP KIM LOI KIM - KIM TH - NHM

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GV: Trn Vn Tn (T: 0984532986) BI DNG KIN THC HO 12 LTH

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CHUYN BI TP TNG HPKIM LOI KIM - KIM TH - NHM

PHN I: CC DNG TON TRNG TMDNG 1: CO2 (SO2) TC DNG VI DUNG DCH KIMCu 1: Dn 4,48 lt kh CO2 (ktc) vo 250 ml dung dch NaOH 1M. C cn dung dch sau phn ng thu c mgam mui khan. Gi tr ca m l

A. 5,3. B. 12,9. C. 13,9. D. 18,2.Cu 2: Sc V lt kh CO2 (ktc) vo 200 ml dung dch X gm Ba(OH)2 1M v NaOH 1M. Sau phn ng thu 19,7 gam kt ta. Gi tr ca V l

A. 2,24 v 4,48. B. 2,24 v 11,2. C. 6,72 v 4,48. D. 5,6 v 1,2.Cu 3: Cho m gam hn hp hai mui Na2CO3 v NaHCO3 c s mol bng nhau tc dng vi dung dch H2SOlong d. Kh sinh ra c dn vo dung dch Ba(OH)2 d thu c 41,4 gam kt ta. Gi tr ca m l

A. 20. B. 21. C. 22. D. 23.

Cu 4: Cho 28 gam hn hp X gm CO2 v SO2 (c t khi ca X so vi O2 bng 1,75) li chm qua 500 ml dundch hn hp gm NaOH 0,7M v Ba(OH)2 0,4M c m gam kt ta. Gi tr ca m lA. 54,25. B. 52,25. C. 49,25. D. 41,80.

Cu 5: Ho tan mt mu hp kim K-Ba c s mol bng nhau vo H2O c dung dch X v 6,72 lt kh (ktc).Sc 0,025 mol CO2 vo dung dch X thu c m gam kt ta. Gi tr ca m l

A. 2,955. B. 4,344. C. 3,940. D. 4,925.Cu 6: Cho 0,05 mol hoc 0,35 mol CO2 hp th hon ton vo dung dch Ca(OH)2 u thu c 0,05 mol ktta. S mol Ca(OH)2 trong dung dch l

A. 0,15. B. 0,20. C. 0,30. D. 0,05.Cu 7: Ho tan hon ton 0,3 mol hn hp gm Al v Al4C3 vo dung dch Ba(OH)2 d, thu c a mol hn hpkh v dung dch X, lng kt ta thu c l 46,8 gam. Gi tr ca a l

A. 0,40. B. 0,60. C. 0,45. D. 0,55.Cu 8: Hp th ht 3,36 lt kh SO2 (ktc) vo dung dch NaOH thu c dung dch cha 2 mui. Thm Br2 dvo dung dch X, phn ng xong thu c dung dch Y. Cho dung dch Y tc dng vi lng d dung dchBa(OH)2. Khi lng kt ta thu c sau khi phn ng xy ra hon ton l

A. 34,95 gam. B. 69,90 gam. C. 32,55 gam. D. 17,475 gam.Cu 9: Hp th hon ton 3,36 lt ( ktc) hn hp kh CO2 v SO2 vo 500 ml dung dch NaOH c nng amol/l, thu c dung dch X, dung dch X c kh nng hp th ti a 2,24 lt CO2 (ktc). Gi tr ca a l

A. 0,4. B. 0,6. C. 0,5. D. 0,8.Cu 10: Dn 5,6 lt kh CO2 (ktc) vo bnh cha 200 ml dung dch NaOH nng a mol/l; dung dch thu cc kh nng tc dng ti a vi 100 ml dung dch KOH 1M. Gi tr ca a l

A. 1,75. B. 2,00. C. 0,5. D. 0,8.

Cu 11: ) Nhit phn 3,0 gam MgCO3 mt thi gian thu c kh X v hn hp rn Y. Hp th hon ton X vo100 ml dung dch NaOH x M thu c dung dch Z. Dung dch Z phn ng vi BaCl2 d to ra 3,94 gam kt ta trung ho hon ton dung dch Z cn 50 ml dung dch KOH 0,2M. Gi tr ca x v hiu sut phn ng nhitphn MgCO3 ln lt l

A. 0,75 v 50%. B. 0,5 v 66,67%. C. 0,5 v 84%. D. 0,75 v 90%.Cu 12: Hp th hon ton 0,16 mol CO2 vo 2 lt dung dch Ca(OH)2 0,05M c kt ta X v dung dch Y. Kh khi lng dung dch Y so vi khi lng dung dch Ca(OH)2 ban u s

A. tng 3,04 gam. B. tng 7,04 gam. C. gim 3,04 gam. D. gim 7,04 gam.Cu 13: Dung dch X cha a mol Ca(OH)2. Cho dung dch X hp th 0,06 mol CO2 c 2b mol kt ta, nhngnu dng 0,08 mol CO2 th thu c b mol kt ta. Gi tr ca a v b ln lt l

A. 0,08 v 0,04. B. 0,05 v 0,02. C. 0,06 v 0,02. D. 0,08 v 0,05.


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Cu 14: Cho dung dch cha a mol Ca(OH)2 tc dng vi dung dch cha b mol NaHCO3 thu c 20 gam ktta. Tip tc cho thm a mol Ca(OH)2 vo dung dch, sau phn ng to ra thm 10 gam kt ta na. Gi tr ca av b ln lt l

A. 0,2 v 0,3. B. 0,3 v 0,3. C. 0,3 v 0,2. D. 0,2 v 0,2.Cu 15: t chy hon ton 1,6 gam kim loi M thuc nhm IIA trong lng d khng kh, c hn hp chtrn X (gm oxit v nitrua ca kim loi M). Ho tan X vo nc c dung dch Y. Thi CO2 n d vo dung

dch Y thu c 6,48 gam mui. Kim loi M lA. Mg. B. Sr. C. Ca. D. Ba.

Cu 16: Trong mt bnh kn cha 0,02 mol Ba(OH)2. Sc vo bnh lng CO2 c gi tr bin thin trong khongt 0,005 mol n 0,024 mol. Khi lng kt ta (gam) thu c bin thin trong khong

A. 0 n 3,94. B. 0,985 n 3,94. C. 0 n 0,985. D. 0,985 n 3,152.Cu 17: Hp th hon ton 4,48 lt kh CO2 ( ktc) vo 500 ml dung dch hn hp gm NaOH 0,1M v Ba(OH)0,2M, sinh ra m gam kt ta. Gi tr ca m l

A. 19,70. B. 17,73. C. 9,85. D. 11,82.Cu 18: Hp th hon ton 2,688 lt kh CO2 ( ktc) vo 2,5 lt dung dch Ba(OH)2 nng a mol/l, thu c15,76 gam kt ta. Gi tr ca a l

A. 0,032. B. 0,048. C. 0,06. D. 0,04.

DNG 2: MUI CACBONAT TC DNG VI AXITCu 1: Dung dch X cha 0,375 mol K2CO3 v 0,3 mol KHCO3. Thm t t dung dch cha 0,525 mol HCl vdung dch X c dung dch Y v V lt CO2 (ktc). Thm dung dch nc vi trong d vo dung dch Y thy tthnh m gam kt ta. Gi tr ca V v m l

A. 3,36 v 17,5. B. 8,4 v 52,5. C. 3,36 v 52,5. D. 6,72 v 26,25.Cu 2: Cho t t dung dch hn hp cha 0,5 mol HCl v 0,3 mol NaHSO4 vo dung dch cha hn hp 0,6 moNaHCO3 v 0,3 mol K2CO3 c dung dch X v V lt CO2 (ktc). Thm dung dch Ba(OH)2 d vo dung dch Xthy to thnh m gam kt ta. Gi tr ca V v m ln lt l

A. 11,2 v 78,8. B. 20,16 v 148,7. C. 20,16 v 78,8. D. 11,2 v 148,7.Cu 3: Cho t t dung dch 0,015 mol HCl vo dung dch cha a mol K2CO3 thu c dung dch X (khng ch

HCl) v 0,005 mol CO2. Nu th nghim trn c tin hnh ngc li (cho t t K2CO3 vo dung dch HCl) ths mol CO2 thu c lA. 0,005. B. 0,0075. C. 0,01. D. 0,015.

Cu 4: Trn 100 ml dung dch KHCO3 1M v K2CO3 1M vi 100 ml dung dch cha NaHCO3 1M v Na2CO1M vo dung dch X. Nh t t 100 ml dung dch Y cha H2SO4 1M v HCl 1M vo dung dch X c V lt CO(ktc) v dung dch Z. Cho Ba(OH)2 d vo Z th c m gam kt ta. Gi tr ca V v m ln lt l

A. 5,6 v 59,1. B. 2,24 v 59,1. C. 1,12 v 82,4. D. 2,24 v 82,4.Cu 5: Nung 13,4 gam hn hp 2 mui cacbonat ca 2 kim loi ho tr II thu c 6,8 gam cht rn v kh XLng kh X sinh ra cho hp th vo 200 ml dung dch NaOH 2M c dung dch Y. C cn dung dch Y m gam cht rn. Gi tr ca m l

A. 15,9. B. 12,6. C. 19,9. D. 22,6.

Cu 6: Cho t t dung dch HCl c pH = 0 vo dung dch cha 5,25 gam hn hp mui cacbonat ca 2 kim lokim k tip n khi c 0,015 mol kh thot ra th dng li. Cho dung dch thu c tc dng vi dung dcCa(OH)2 d sinh ra 3 gam kt ta. Cng thc ca 2 mui v th tch dung dch HCl dng l

A. Li2CO3 v Na2CO3; 0,03 lt. B. Na2CO3 v K2CO3; 0,03 lt.C. Li2CO3 v Na2CO3; 0,06 lt. D. Na2CO3 v K2CO3; 0,06 lt.

Cu 7: Dung dch X cha 0,6 mol NaHCO3 v 0,3 mol Na2CO3. Thm rt t t dung dch cha 0,8 mol HCl vdung dch X thu c dung dch Y v V lt CO2 (ktc). Thm nc vi trong d vo dung dch Y thy to thnm gam kt ta. Gi tr ca V v m ln lt l

A. 11,2 v 40. B. 11,2 v 60. C. 16,8 v 60. D. 11,2 v 90.Cu 8: C 2 cc ring bit: Cc (1) ng dung dch cha 0,2 mol Na2CO3 v 0,3 mol NaHCO3; Cc (2) ndung dch cha 0,5 mol HCl. Khi nh t t cc (1) vo cc (2) thy thot ra V lt kh CO2 (ktc). Gi tr ca V l


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A. 6,72. B. 7,84. C. 8,00. D. 8,96.Cu 9: Cho 100 ml dung dch HCl 1M vo 200 ml dung dch Na 2CO3 thu c dung dch X cha 3 mui. Chdung dch X vo nc vi trong d thu c 15 gam kt ta. Nng mol ca dung dch Na2CO3 ban u l

A. 0,75M. B. 0,65M. C. 0,85M. D. 0,9M.Cu 10: Khi sc a mol kh SO2 vo 200 ml dung dch cha Ba(HCO3)2 0,4M v BaCl2 0,5M thu c 23,3 gamkt ta v V lt kh CO2 (ktc). Gi tr ca V l

A. 3,854. B. 3,136. C. 4,480. D. 2,240.Cu 11: Cho rt t t tng git dung dch cha 0,15 mol Na2CO3 v 0,1 mol NaHCO3 vo 100 ml dung dch HC2M. Th tch kh CO2 thot ra ( ktc) l

A. 3,36 lt. B. 2,8 lt. C. 2,24 lt. D. 3,92 lt.Cu 12: Cho t t tng git dung dch cha a mol HCl vo dung dch cha b mol Na2CO3 v c mol NaHCO3 thc dung dch X v kh CO2. Cho nc vi trong d vo dung dch X thu c m gam kt ta. Mi lin h gim vi a, b, c l

A. m = 100(2b + c 2a). B. m = 100(b + c a).C. m = 100(b + c 2a). D. m = 100(2b + c a).

Cu 13: Ho tan hon ton 27,4 gam hn hp gm M2CO3 v MHCO3 (M l kim loi kim) bng dung dch HCd thy thot ra 6,72 lt CO2 (ktc). Kim loi M l

A. Li. B. Na. C. K. D. Rb.Cu 14: Cho V1 lt dung dch NaOH 1M trn vi V2 lt dung dch Ba(HCO3)2 1M. sau phn ng thu dung dch cha Na+ v 3HCO

th t l V1/V2 l

A. 3/2. B. 1/2. C. 1. D. 2.Cu 15: Trn 100 ml dung dch NaOH 1M vo 100 ml dung dch HCl thu c dung dch X. Dung dch X tdng va vi 100 ml dung dch NaHCO3 0,5M. Nng mol dung dch HCl l

A. 0,5M. B. 1,5M. C. 0,5M v 1,5M. D. 0,5M v 2,0M.Cu 16: Cho 150 ml dung dch Na2CO3 1M v K2CO3 0,5M vo 250 ml dung dch HCl 2M th thu c V lt khCO2 (ktc). Gi tr ca V l

A. 3,36. B. 2,52. C. 5,60. D. 5,04.Cu 17: Cho rt t t tng git 100 ml dung dch HCl 2,5M vo dung dch cha 0,15 mol Na2CO3. Sau khi dundch HCl ht cho dung dch nc vi trong d vo thu c bao nhiu gam kt ta?

A. 7,5 gam. B. 10 gam. C. 5,0 gam. D. 15 gam.

DNG 3: Al V CC HP CHT TC DNG VI DUNG DCH KIMCu 1: Cho 200 ml dung dch AlCl3 1,5M tc dng vi V lt dung dch NaOH 0,5M, thu c 15,6 gam kt taGi tr ln nht ca V l

A. 1,2. B. 1,8. C. 2,0. D. 2,4.Cu 2: Cho V lt dung dch NaOH 2M vo dung dch cha 0,1 mol Al 2(SO4)3 v 0,1 mol H2SO4 n khi phng hon ton thu c 7,8 gam kt ta. Gi tr ln nht ca V thu c lng kt ta trn l

A. 0,45. B. 0,35. C. 0,25. D. 0,15.Cu 3: Cho a mol AlCl3 vo 1 lt dung dch NaOH c nng b M c 0,05 mol kt ta, thm tip 1 lt dung dc

NaOH trn th c 0,06 mol kt ta. Gi tr ca a v b ln lt lA. 0,15 v 0,06. B. 0,09 v 0,18. C. 0,09 v 0,15. D. 0,06 v 0,15.

Cu 4: Trn 100 ml dung dch AlCl3 1M vi 200 ml dung dch NaOH 2,25M c dung dch X. kt ta hoton Al3+ trong dung dch X di dng hiroxit cn dng V lt kh CO2 (ktc). Gi tr ca V l

A. 1,12. B. 2,24. C. 3,36. D. 6,72.Cu 5: X l dung dch cha 0,1 mol AlCl3, Y l dung dch cha 0,32 mol NaOH. Thc hin 2 th nghim sau:

- Th nghim 1: Cho t t Y vo X, sau khi cho ht Y vo X c a gam kt ta.- Th nghim 2: Cho t t X vo Y, sau khi cho ht X vo Y c b gam kt ta.Nhn nh no sau y l ng?A. a = b = 3,12. B. a = b = 6,24. C. a = 3,12, b = 6,24. D. a = 6,24, b = 3,12.


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Cu 6: X l dung dch AlCl3, Y l dung dch NaOH 2M. Cho 150 ml dung dch Y vo cc cha 100 ml dung dcX, khuy u ti phn ng hon ton thy trong cc c 7,8 gam kt ta. Thm tip vo cc 100 ml dung dch Ykhuy u n khi kt ta phn ng thy trong cc c 10,92 gam kt ta. Nng mol ca dung dch X l

A. 3,2M. B. 2,0M. C. 1,6M. D. 1,0M.Cu 7: Chia m gam hn hp Na2O v Al2O3 thnh 2 phn bng nhau:

- Phn 1: Ho tan trong nc d thu c 1,02 gam cht rn khng tan.

- Phn 2: Ho tan va ht trong 140 ml dung dch HCl 1M.Gi tr ca m lA. 2,26. B. 2,66. C. 5,32. D. 7,0.

Cu 8: in phn 500 ml dung dch hn hp gm NaCl 0,1M v AlCl3 0,3M trong iu kin c mng ngn, icc tr ti khi anot xut hin 2 kh th ngng in phn. Sau in phn, lc ly kt ta ri nung nhit can khi lng khng i c m gam cht rn. Gi tr ca m l

A. 7,65. B. 5,10. C. 15,30. D. 10,20.Cu 9: Mt dung dch X cha NaOH v 0,3 mol Na[Al(OH)4]. Cho 1 mol HCl vo dung dch X thu c 15,gam kt ta. S mol NaOH trong dung dch X l

A. 0,2 hoc 0,8. B. 0,4 hoc 0,8. C. 0,2 hoc 0,4. D. 0,2 hoc 0,6.Cu 10: Ho tan 47,4 gam phn chua KAl(SO4)2.12H2O vo nc c dung dch X. Thm dn n ht 300 m

dung dch Ba(OH)2 1M vo X c a gam kt ta v dung dch Y. Lc b ht kt ta ri sc kh CO2 d vo dundch nc lc thy to ra b gam kt ta. Gi tr ca a v b ln lt l

A. 46,6 v 27,5. B. 46,6 v 7,8. C. 54,4 v 7,8. D. 52,5 v 27,5.Cu 11: Thm dung dch HCl vo 100 ml dung dch hn hp gm NaOH 1M v Na[Al(OH)4] 1M. Khi kt tthu c l 6,24 gam th s mol HCl dng l

A. 0,08 hoc 0,16. B. 0,18 hoc 0,22. C. 0,18 hoc 0,26. D. 0,26 hoc 0,36.Cu 12: Chia m gam hn hp X gm Al v Ba thnh 2 phn bng nhau

- Phn 1: tc dng vi nc (d) c 0,04 mol H2.- Phn 2: tc dng vi 50 ml dung dch NaOH 1M (d) c 0,07 mol H 2 v dung dch Y. Cho V ml dung dcHCl vo Y c 1,56 gam kt ta. Gi tr ca V ln nht thu c lng kt ta trn lA. 20. B. 50. C. 100. D. 130.

Cu 13: Dung dch X l dung dch NaOH C%. Ly 36 gam dung dch X trn vi 400 ml dung dch AlCl 3 0,1Mth lng kt ta bng khi ly 148 gam dung dch X trn vi 400 ml dung dch AlCl3 0,1M. Gi tr ca C lA. 3,6. B. 4,4. C. 4,2. D. 4,0.

Cu 14: Cho t t dung dch NaOH 1,0M vo dung dch c cha 26,7 gam AlCl3 cho n khi thu c 11,7 gamkt ta th dng li, thy dng ht V lt NaOH. Gi tr ca V l

A. 0,45 hoc 0,6. B. 0,65 hoc 0,75. C. 0,6 hoc 0,65. D. 0,45 hoc 0,65.Cu 15: Ho tan 26,64 gam Al2(SO4)3.18H2O vo nc c dung dch X.

a) Th tch dung dch NaOH 0,2M cn thm vo dung dch X thu c lng kt ta ln nht v nh nhln lt lA. 1,17 lt v 1,56 lt. B. 2,34 lt v 3,12 lt.C. 1,20 lt v 1,60 lt. D. 0,60 lt v 0,80 lt.

b) Cho 250 ml dung dch NaOH tc dng ht vi X th thu c 2,34 gam kt ta. Nng mol ca dung dcNaOH dng lA. 0,36M. B. 0,36M hoc 1,52M.C. 0,36M hoc 0,80M. D. 0,36M hoc 1,16M.

Cu 16: Dung dch hn hp X gm KOH 1,0M v Ba(OH)2 0,5M. Cho t t dung dch X vo 100 ml dung dcZn(NO3)2 1,5M. Th tch nh nht ca dung dch X cn dng khng cn kt ta l

A. 300 ml. B. 150 ml. C. 200 ml. D. 400 ml.Cu 17: Ho tan va ht m gam Al vo dung dch NaOH th thu c dung dch X v 3,36 lt H2 (ktc). Rt t tdung dch HCl 0,2M vo X th thu c 5,46 gam kt ta. Th tch dung dch HCl dng l

A. 0,35M, B. 0,35M hoc 0,85M.C. 0,35M hoc 0,50M. D. 0,35M hoc 0,70M.


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Cu 18: Cho t t V lt dung dch HCl 0,5M vo 200 ml dung dch Na[Al(OH)4] 1,0M thu c 11,7 gam kt tGi tr ca V l

A. 0,3 hoc 0,4. B. 0,4 hoc 0,7. C. 0,3 hoc 0,7. D. 0,7.Cu 19: Cho 100 ml dung dch AlCl3 2M tc dng vi dung dch KOH 1M.

a) Th tch dung dch KOH ti ti thiu phi dng khng c kt ta lA. 0,4 lt. B. 0,8 lt. C. 0,6 lt. D. 1,0 lt.

b) Cho dung dch sau phn ng trn tc dng vi HCl 2M thu c 3,9 gam kt ta keo. Th tch dung dcHCl dng lA. 0,025 lt. B. 0,325 lt hoc 0,10 lt.C. 0,025 lt hoc 0,10 lt. D. 0,025 lt hoc 0,325 lt.

Cu 20: Cho 200 ml dung dch Al2(SO4)3 tc dng vi dung dch NaOH 1M nhn thy khi dng 180 ml hay dn340 ml dung dch NaOH u thu c mt lng kt ta bng nhau. Nng dung dch Al2(SO4)3 trong thnghim trn l

A. 0,125M. B. 0,25M. C. 0,375M. D. 0,50M.Cu 21: Trong mt cc ng 200 ml dung dch AlCl3 2,0M. Rt vo cc V ml dung dch NaOH nng aM; thc kt ta em sy kh v nung n khi lng khng i th cn li 5,1 gam cht rn. Nu V = 200 ml th gitr ca a l

A. 1,5M. B. 7,5M. C. 1,5M hoc 7,5M. D. 1,5M hoc 3,0M.Cu 22: Dung dch X gm: 0,16 mol Na[Al(OH)4]; 0,56 mol Na2SO4 v 0,66 mol NaOH. Th tch dung dch HC2M cn cho vo dung dch X c 0,1 mol kt ta l

A. 0,38 lt hoc 0,41 lt. B. 0,41 lt hoc 0,50 lt.C. 0,38 lt hoc 0,50 lt. D. 0,25 lt hoc 0,50 lt.

Cu 23: Cho t t a mol NaOH vo dung dch cha b mol mui Al3+. iu kin thu c sau phn ng lA. a < 4b. B. a = 2b. C. a > 4b. D. 2b < a < 4b.

Cu 24: Cho dung dch cha a mol AlCl3 vo dung dch c cha b mol NaOH. iu kin c kt ta ln nhv b nht ln lt l

A. b = 3a v b = 4a. B. b = 3a v b 4a. C. b = 4a v b = 3a. D. b = 3a v b 4a.Cu 25: Cho dung dch c cha a mol Al2(SO4)3 vo dung dch c cha b mol NaOH. iu kin c kt ta l

nht v b nht ln lt lA. b = 6a v b = 8a. B. b = 3a v b 4a. C. b = 4a v b 5a. D. b = 6a v b 8a.Cu 26: Dung dch X cha a mol Na[Al(OH)4] v 2a mol NaOH. Thm t t b mol HCl vo dung dch X. saphn ng thu c kt ta th gi tr ca b l

A. b < 4a. B. 2a < b < 5a. C. 2a < b < 4a. D. 2a < b < 6a.Cu 27: Hp th hon ton 2,24 lt CO2 (ktc) vo dung dch nc vi trong c cha 0,075 mol Ca(OH) 2. Sphm thu c sau phn ng l

A. ch c CaCO3. B. ch c Ca(HCO3)2.C. c c CaCO3 v Ca(HCO3)2. D. c c 2 cht CaCO3 v CO2 d.

Cu 28: Dn t t 112 cm3 kh CO2 (ktc) qua 200 ml dung dch Ca(OH)2 a mol/l th thy khng c kh thot rv thu c 0,1 gam kt ta trng. Gi tr ca a l

A. 0,03. B. 0,015. C. 0,02. D. 0,025.Cu 29: Thm m gam kali vo 300 ml dung dch cha Ba(OH)2 0,1M v NaOH 0,1M thu c dung dch X. Cht t dung dch X vo 200 ml dung dch Al2(SO4)3 0,1M thu c kt ta Y. thu c lng kt ta Y lnht th gi tr ca m l

A. 1,17. B. 0,585. C. 1,755. D. 2,34.Cu 30: Cho m gam Na tan ht trong 100 ml dung dch Al2(SO4)3 0,2M. Sau phn ng thu c 0,78 gam kt tGi tr ca m l

A. 0,69 gam. B. 0,69 gam hoc 3,45 gam.C. 0,69 gam hoc 3,68 gam. D. 0,69 gam hoc 2,76 gam.

Cu 31: Rt t t dung dch HCl 0,1M vo 200 ml dung dch K[Al(OH)4] 0,2M. Sau phn ng thu c 1,5gam kt ta. Th tch dung dch HCl dng l


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A. 0,2 lt hoc 1,0 lt. B. 0,3 lt hoc 0,8 lt. C. 0,2 lt hoc 0,8 lt. D. 0,3 lt hoc 1,0 lt.Cu 32: Rt t t dung dch Ba(OH)2 0,2M vo 150 ml dung dch AlCl3 0,04M n khi thu c lng kt tln nht, nh nht. Th tch dung dch Ba(OH)2 dng tng ng l

A. 45 ml v 60 ml. B. 45 ml v 90 ml. C. 90 ml v 120 ml. D. 60 ml v 90 ml.Cu 33: Trong bnh kn cha 15 lt dung dch Ca(OH)2 0,01M. Sc vo bnh lng CO2 c gi tr bin thin tronkhong 0,02

2COn 0,12. Khi lng kt ta thu c bin thin trong khong no?

A. 0 gam n 15 gam. B. 2 gam n 15 gam. C. 2 gam n 12 gam. D. 0 gam n 12 gam.Cu 34: Ho tan 10,8 gam Al trong mt lng H2SO4 va thu c dung dch X. Th tch dung dch NaOH0,5M phi thm vo dung dch X c kt ta sau khi nung n khi lng khng i cho ta mt cht rn c khlng 10,2 gam l

A. 1,2 lt hoc 2,8 lt. B. 1,2 lt. C. 2,8 lt. D. 1,2 lt hoc 1,4 lt.

DNG 4: PHN NG NHIT NHMCu 1: Trn 0,54 gam bt Al vi Fe2O3 v CuO ri tin hnh phn ng nhit nhm trong iu kin khng ckhng kh, thu c hn hp cht rn X. Ho tan X trong dung dch HNO3 thu c 0,896 lt hn hp kh Y gmNO2 v NO (ktc). T khi hi ca hn hp kh Y so vi H2 l

A. 17. B. 19. C. 21. D. 23.Cu 2: Nung 21,4 gam hn hp X gm bt Al v Fe2O3 (phn ng nhit nhm), thu c hn hp Y. Cho Y tdng ht vi dung dch HCl d c dung dch Z. Cho Z tc dng vi dung dch NaOH d c kt ta T. NungT trong khng kh n khi lng khng i thu c 16 gam cht rn. Khi lng ca Al v Fe 2O3 trong hhp X l

A. 4,4 gam v 17 gam. B. 5,4 gam v 16 gam. C. 6,4 gam v 15 gam. D. 7,4 gam v 14 gam.Cu 3: Nung nng m gam hn hp gm Al v Fe3O4 trong iu kin khng c khng kh. Sau khi phn ng xra hon ton, thu c hn hp rn X. Cho X tc dng vi dung dch NaOH (d) thu c dung dch Y, cht rZ v 3,36 lt kh H2 ( ktc). Sc kh CO2 (d) vo dung dch Y, thu c 39 gam kt ta. Gi tr ca m l

A. 48,3. B. 57,0. C. 45,6. D. 36,7.Cu 4: Nung hn hp bt gm 15,2 gam Cr2O3 v m gam Al nhit cao. Sau khi phn ng hon ton, thc 23,3 gam hn hp rn X. Cho ton b hn hp rn X phn ng vi axit HCl d thot ra V lt kh H 2 (ktcGi tr ca V l

A. 7,84. B. 4,48. C. 3,36. D. 10,08.Cu 5: Nung nng m gam hn hp Al v FexOy (trong mi trng khng c khng kh) n khi phn ng xy rhon ton thu c hn hp rn X. Cho X tc dng vi dung dch NaOH d c 0,03 mol H 2, dung dch Y v4,48 gam cht rn khng tan. Cho t t dung dch HCl vo Y n khi thu c lng kt ta ln nht, lc ly kta nung n khi lng khng i c 5,1 gam cht rn. Gi tr ca m v cng thc FexOy ln lt l

A. 11,2 v Fe3O4. B. 8,5 v FeO. C. 9,1 v Fe2O3. D. 10,2 v Fe2O3.Cu 6: Hn hp X gm bt Al v Fe2O3. Ly 85,6 gam X em ung nng thc hin phn ng nhit nhm, samt thi gian c m gam hn hp rn Y. Chia Y thnh 2 phn bng nhau:

- Phn 1: ho tan trong dung dch NaOH d thy thot ra 3,36 lt kh H2 ( ktc).- Phn 2: ho tan trong dung dch HCl d thy thot ra 10,08 lt kh H 2 ( ktc).Phn trm khi lng ca Fe trong hn hp Y lA. 18,0%. B. 19,62%. C. 39,25%. D. 40,0%.

Cu 7: Khi cho 41,4 gam hn hp X gm Fe2O3, Cr2O3 v Al2O3 tc dng vi dung dch NaOH c (d). Saphn ng c cht rn c khi lng 16 gam. kh hon ton 41,4 gam X bng phn ng nhit nhm, phdng 10,8 gam Al. Phn trm khi lng ca Cr2O3 trong hn hp X l (bit cc phn ng xy ra hon ton)

A. 36,71%. B. 19,62%. C. 39,25%. D. 40,15%.Cu 8: Nung hn hp bt gm 15,2 gam Cr2O3; 69,6 gam Fe3O4 v m gam Al nhit cao. Sau khi phn nxy ra hon ton thu c 114,5 gam hn hp rn X. Cho ton bt hn hp X phn ng vi dung dch HCl (dthot ra V lt H2 ( ktc). Gi tr ca V l

A. 34,72. B. 24,64. C. 30,24. D. 28,00.


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Cu 9: Tin hnh phn ng nhit nhm 26,8 gam hn hp X gm Al gam hn hp X gm Al v Fe 2O3. Sau khlm ngui, ly hn hp thu c ho tan trong dung dch HCl d thy thot ra 11,2 lt H 2 (ktc). Hiu sut ccc phn ng l 100%. Phn trm khi lng ca Al trong hn hp ban u l

A. 20,15%. B. 40,03%. C. 59,70%. D. 79,85%.Cu 10: Nung a gam hn hp bt Al v Fe2O3 (trong iu kin khng c khng kh) n khi lng phn nc hn hp rn X. Chia X thnh 2 phn bng nhau:

- Phn 1: Cho tc dng vi dung dch NaOH d c 0,15 mol H2.- Phn 2: Cho tc dng vi dung dch HCl d c 0,55 mol H2 v dung dch Y. Cho dung dch Y tc dng v

dung dch NaOH d trong khng kh , lc ly kt ta ri nung n khi lng khng i c b gam cht rn ZGi tr ca a v b ln lt l

A. 45,5 v 3,2. B. 59,0 v 14,4. C. 91,0 v 32,0. D. 77,5 v 37,1.Cu 11: Nung 5,54 gam hn hp X gm Fe3O4, CuO v Al n phn ng hon ton c hn hp rn Y. Ho taht Y trong dung dch HCl d th lng H2 sinh ra ti a l 0,06 mol. Nu cho Y vo dung dch NaOH d th thcn 2,96 gam cht rn khng tan. Phn trm khi lng ca Al trong X l

A. 29,24%. B. 24,37%. C. 19,50%. D. 34,11%.Cu 12: Oxi ho hon ton 11,2 gam Fe thu c 17,6 gam hn hp X gm cc oxit. kh hon ton X thnhFe cn dng va 5,4 gam bt Al. Ho tan hn hp thu c sau phn ng nhit nhm bng dung dch HCl th

thot ra V lt kh H2 ( ktc). Gi tr ca V lA. 3,36. B. 8,96. C. 6,72. D. 2,24.

Cu 13: Trn 0,81 gam bt Al vi hn hp bt Fe2O3, Al2O3 v CuO ri t nng tin hnh phn ng nhinhm. Ho tan hon ton X trong dung dch HNO3 un nng c V lt kh NO (sn phm kh duy nht, ktc)Gi tr ca V l

A. 2,24. B. 0,224. C. 0,672. D. 6,72.Cu 14: Nung 9,66 gam hn hp bt X gm Al v mt oxit st trong iu kin khng c khng kh, khi phn nnhit nhm xy ra hon ton (gi s ch xy ra phn ng kh oxit st thnh st) thu c hn hp sn phm YChia Y lm 2 phn u nhau:

- Phn 1: ho tan trong dung dch NaOH d thy thot ra 0,336 lt H 2 (ktc).- Phn 2: ho tan trong dung dch HCl d c 1,344 lt H 2 (ktc).

Oxit st trong X lA. FeO. B. Fe2O3. C. Fe3O4. D. Fe2O3 hoc Fe3O4.

PHN II: H THNG BI TP TRC NGHIM TRONG SGK

Cu 1: Cu hnh electron lp ngoi cng ca nguyn t kim loi kim lA. ns1. B. ns2. C. ns2np1. D. (n1)dxnsyy.

Cu 2: Cation M+ c cu hnh electron lp ngoi cng l 2s22p6. M+ l cation no sau y?A. Ag+. B. Cu+. C. Na+. D. K+.

Cu 3: Nguyn t ca cc kim loi trong nhm IA khc nhau v

A. s electron lp ngoi cng ca nguyn t.B. cu hnh electron nguyn t.C. s oxi ho ca nguyn t trong hp cht.D. kiu mng tinh th ca n cht.

Cu 4: Cu no sau y m t ng s bin i tnh cht ca cc kim loi kim theo chiu in tch ht nhn tndn?

A. bn knh nguyn t gim dn. B. nhit nng chy tng dn.C. nng lng ion ho I1 ca nguyn t gim dn. D. khi lng ring ca n cht gim dn.

Cu 5: Nng ca dung dch to thnh khi ho tan 39 gam kali kim loi vo 362 gam l kt qu no sau y?A. 15,47%. B. 13,97%. C. 14%. D. 14,04%.


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Cu 6: Trong cc mui sau, mui no d b nhit phn?A. LiCl. B. NaNO3. C. KHCO3. D. KBr.

Cu 7: Nhng nguyn t trong nhm IA ca bng tun hon c sp xp t trn xung di theo th t tndn ca

A. in tch ht nhn nguyn t. B. khi lng ring.C. nhit si. D. s oxi ho.

Cu 8: Cho 3 gam hn hp gm Na v kim loi kim M tc dng vi nc. trung ho dung dch thu c cn800 ml dung dch HCl 0,25M. Kim loi M l

A. Li. B. Cs. C. K. D. Rb.Cu 9: Ho tan 4,7 gam K2O vo 195,3 gam nc. Nng phn trm ca dung dch thu c l

A. 2,6%. B. 6,2%. C. 2,8%. D. 8,2%.Cu 10: Cho 17 gam hn hp X gm hai kim loi kim ng k tip nhau trong nhm IA tc dng vi nc thuc 6,72 lt H2 (ktc) v dung dch Y.

a) Hn hp X gmA. Li v Na. B. Na v K. C. K v Rb. D. Rb v Cs.b) Th tch dung dch HCl 2M cn dng trung ho dung dch Y lA. 200 ml. B. 250 ml. C. 300 ml. D. 350 ml.

Cu 11: Cho 3,9 gam kali tc dng vi nc thu c 100 ml dung dch. Nng mol ca dung dch KOH thc l

A. 0,1M. B. 0,5M. C. 1M. D. 0,75M.Cu 12: Cho hn hp Na v Mg ly d vo 100 gam dung dch H2SO4 20% th th tch kh H2 (ktc) thot ra l

A. 4,57 lt. B. 54,35 lt. C. 49,78 lt. D. 57,35 lt.Cu 13: in phn mui clorua ca mt kim loi kim nng chy thu c 0,896 lt kh (ktc) anot v 1,84gam kim loi catot. Cng thc ho hc ca mui l

A. LiCl. B. NaCl. C. KCl. D. RbCl.Cu 14: c im no sau y khng l c im chung cho cc kim loi nhm IA?

A. s electron lp ngoi cng ca nguyn t.B. s oxi ho ca cc nguyn t trong hp cht.

C. cu to mng tinh th ca cc n cht.D. bn knh nguyn t.Cu 15: Nguyn t c nng lng ion ho nh nht l

A. Li. B. Na. C. K. D. Cs.Cu 16: Cho 6,2 gam hn hp 2 kim loi kim tc dng ht vi nc thy c 2,24 lt H 2 (ktc) bay ra. C cdung dch th khi lng cht rn khan thu c l

A. 9,4 gam. B. 9,5 gam. C. 9,6 gam. D. 9,7 gam.Cu 17: Ho tan hon ton 5,2 gam hai kim loi kim 2 chu k lin tip vo nc thu c 2,24 lt kh H2 (ktcHai kim loi l

A. Li v Na. B. Na v K. C. K v Rb. D. Rb v Cs.Cu 18: Nng phn trm ca dung dch thu c khi cho 39 gam kim loi K vo 362 gam nc l

A. 12%. B. 13%. C. 14%. D. 15%.Cu 19: Trong mt lt dung dch Na2SO4 0,2M c tng s mol cc ion do mui phn li ra lA. 0,2 mol. B. 0,4 mol. C. 0,6 mol. D. 0,8 mol.

Cu 20: Cho 0,1mol hn hp gm Na2CO3 v KHCO3 tc dng ht vi dung dch HCl. Dn kh thot ra vo dundch Ca(OH)2 d th khi lng kt ta thu c l

A. 8 gam. B. 9 gam. C. 10 gam. D. 11 gam.Cu 21: Cho a gam hn hp 2 mui Na2CO3 v NaHSO3 c s mol bng nhau tc dng vi dung dch H2SOlong d. Kh sinh ra c dn vo dung dch Ba(OH)2 d thu c 41,4 gam kt ta. Gi tr ca a l

A. 20. B. 21. C. 22. D. 23.Cu 22: Xp cc kim loi kim th theo chiu tng ca in tch ht nhn, th

A. bn knh nguyn t gim dn. B. nng lng ion ho gim dn.


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C. tnh kh gim dn. D. kh nng tc dng vi nc gim dn.Cu 23: Cho dung dch Ca(OH)2 vo dung dch Ca(HCO3)2 s

A. c kt ta trng. B. c bt kh thot ra.C. c kt ta trng v bt kh. D. khng c hin tng g.

Cu 24: Cho 2,84 gam hn hp CaCO3 v MgCO3 tc dng ht vi dung dch HCl thy thot ra 672 ml kh CO(ktc). Phn trm khi lng ca hai mui (CaCO3, MgCO3) trong hn hp l

A. 35,2% v 64,8%. B. 70,4% v 29,6%. C. 85,49% v 14,51%. D. 17,6% v 82,4%.Cu 25: Cho 2 gam mt kim loi thuc nhm IIA tc dng ht vi dung dch HCl to ra 5,55 gam mui cloruaKim loi l kim loi no sau y?

A. Be. B. Mg. C. Ca. D. Ba.Cu 26: trng thi c bn, nguyn t kim loi kim th c s electron ho tr l

A. 1e. B. 2e. C. 3e. D. 4e.Cu 27: Ch dng thm thuc th no cho di y c th nhn bit c 3 l mt nhn cha cc dung dchH2SO4, BaCl2, Na2SO4?

A. Qu tm. B. Bt km.C. Na2CO3. D. Qu tm hoc bt km hoc Na2CO3.

Cu 28: Cho cc hp cht: Ca, Ca(OH)2, CaCO3, CaO. Da vo mui quan h gia cc hp cht v c, hy ch

dy bin i no sau y c th thc hin c.A. Ca CaCO3 Ca(OH)2 CaO. B. Ca CaO Ca(OH)2 CaCO3.C. CaCO3 Ca CaO Ca(OH)2. D. CaCO3 Ca(OH)2 Ca CaO.

Cu 29: C th dng cht no sau y c th lm mm nc c tnh cng tm thi?A. NaCl. B. H2SO4. C. Na2CO3. D. KNO3.

Cu 30: Anion gc axit no sau y c th lm mm nc cng?A. 3NO

. B. 24SO . C. 4ClO

. D. 34PO .

Cu 31: Trong mt dung dch c a mol Ca2+, b mol Mg2+, c mol Cl, d mol 3HCO . Biu thc lin h gia a, b, c

d lA. a + b = c + d. B. 2a + 2b = c + d. C. 3a + 3b = c + d. D. 2a + c = b + d.

Cu 32: Trong nc cng t nhin thng c ln mt lng nh cc mui Ca(NO3)2, Mg(NO3)2, Ca(HCO3)Mg(HCO3)2. C th dng dung dch no sau y loi ng thi cc cation trong cc mui trn ra khi nc?A. dung dch NaOH. B. dung dch K2SO4. C. dung dch Na2CO3. D. dung dch NaNO3.

Cu 33: C th loi b tnh cng tm thi ca nc bng cch un si v l do no sau y?A. Nc si nhit cao ( 100oC, p sut kh quyn).B. Khi un si lm tng tan ca cc cht kt ta.C. Khi un si cc cht kh ho tan trong nc thot ra.D. Cc mui hirocacbonat ca canxi v magie b phn hu bi nhit to kt ta.

Cu 34: oxi ho hon ton mt kim loi M ho tr II thnh oxit phi dng mt lng oxi bng 40% lng kimloi dng. Kim loi M l

A. Zn. B. Mg. C. Ca. D. Ba.

Cu 35: Nung hn hp mui cacbonat ca hai kim loi k tip nhau trong nhm IIA ti khi lng khng i thc 2,24 lt CO2 (ktc) v 4,64 gam hn hp hai oxit. Hai kim loi lA. Mg v Ca. B. Be v Mg. C. Ca v Sr. D. Sr v Ba.

Cu 36: trung dung dch ho hn hp X cha 0,1 mol NaOH v 0,15 mol Ba(OH) 2 cn bao nhiu lt dundch hn hp Y cha HCl 0,1M v H2SO4 0,05M?

A. 1 lt. B. 2 lt. C. 3 lt. D. 4 lt.Cu 37: Ho tan hn hp 2 mui cacbonat ca kim loi ho tr II trong dung dch HCl d thu c 6,72 lt kh(ktc). C cn dung dch sau phn ng thy khi lng mui khan thu c nhiu hn khi lng 2 mucacbonat ban u l

A. 3,0 gam. B. 3,1 gam. C. 3,2 gam. D. 3,3 gam.


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Cu 38: Cho a gam hn hp BaCO3 v CaCO3 tc dng ht vi V lt dung dch HCl 0,4M thy gii phng 4,48 lCO2 (ktc), dn kh thu c vo dung dch Ca(OH)2 d

a) Khi lng kt ta thu c lA. 10 gam. B. 15 gam. C. 20 gam. D. 25 gam.b) Th tch dung dch HCl cn dng lA. 1,0 lt. B. 1,5 lt. C. 1,6 lt. D. 1,7 lt.

c) Gi tr ca a nm trong khong noA. 10 gam < a < 20 gam. B. 20 gam < a < 35,4 gam.C. 20 gam < a < 39,4 gam. D. 20 gam < a < 40 gam.

Cu 39: Nhn nh ng khi ni v nhm kim loi kim th v cc kim loi thuc nhm A ni chung lA. Tnh kh ca kim loi tng khi bn knh nguyn t tng.B. Tnh kh ca kim loi tng khi bn knh nguyn t gim.C. Tnh kh ca kim loi gim khi bn knh nguyn t tng.D. Tnh kh ca kim loi khng ph thuc vo bn knh nguyn t ca kim loi.

Cu 40: Cho 18,4 gam hn hp hai mui cacbonat ca hai kim loi thuc nhm IIA hai chu k lin tip tdng ht vi dung dch HCl. C cn dung dch sau khi phn ng thu c 20,6 gam mui khan. Hai kim loi l

A. Be v Mg. B. Mg v Ca. C. Ca v Sr. D. Sr v Ba.Cu 41: Nc cng khng gy ra tc hi no di y?

A. Lm hao tn cht git ra tng hp. B. Lm gim mi v thc phm.C. Lm gim an ton ca cc ni hi. D. Lm tc ng dn nc nng.

Cu 42: Cho dung dch Ba(OH)2 d vo 500 ml dung dch hn hp gm NaHCO3 1M v Na2CO3 0,5M. Khlng kt ta to ra l

A. 147,75 gam. B. 146,25 gam. C. 145,75 gam. D. 154,75 gam.Cu 43: Ho tan hon ton 4 gam hn hp gm MCO3 v MCO3 vo dung dch HCl thy thot ra V lt kh (ktcDung dch to thnh em c cn thu c 5,1 gam mui khan. Gi tr ca V l

A. 1,12. B. 1,68. C. 2,24. D. 3,36.Cu 44: Dung dch A cha 5 ion: Mg2+, Ba2+, Ca2+, Cl (0,1 mol), 3NO

(0,2 mol). Thm dn V ml dung dc

K2CO3 1M vo dung dch A cho ti khi lng kt ta thu c ln nht. Gi tr ca V lA. 150. B. 300. C. 200. D. 250.

Cu 45: Cho 20,6 gam hn hp mui cacbonat ca mt kim loi kim v mt kim loi kim th tc dng vdung dch HCl d thy c 4,48 lt kh thot ra (ktc). C cn dung dch, mui khan thu c em in phn nnchy thu c m gam kim loi. Gi tr ca m l

A. 8,6. B. 8,7. C. 8,8. D. 8,9.Cu 46: Sc kh Cl2 va vo dung dch hn hp cha NaBr v NaI n phn ng hon ton th to ra 1,1gam NaCl. Tng s mol NaBr v NaI trong dung dch ban u l

A. 0,02 mol. B. 0,03 mol. C. 0,04 mol. D. 0,05 mol.Cu 47: Cho 19,2 gam hn hp mui cacbonat ca mt kim loi ho tr I v mui cacbonat ca kim loi ho tr tc dng vi dung dch HCl d, thu c 4,48 lt mt cht kh (ktc). Khi lng mui to ra trong dung dch l

A. 21,4 gam. B. 22,2 gam. C. 23,4 gam. D. 25,2 gam.Cu 48: So vi nguyn t canxi, nguyn t kali c

A. bn knh ln hn v m in ln hn.B. bn knh ln hn v m in nh hn.C. bn knh nguyn t nh hn v m in nh hn.D. bn knh nh hn v m in ln hn.

Cu 49: iu ch kim loi Mg bng cch in phn MgCl2 nng chy, qu trnh no xy ra catot (cc m)?A. Mg Mg2+ + 2e. B. Mg2+ + 2e Mg.C. 2Cl Cl2 + 2e. D. Cl2 + 2e 2Cl

.Cu 50: Cu no sau y din t ng tnh cht ca kim loi kim th?


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A. Tnh kh ca kim loi tng theo chiu tng ca nng lng ion ho.B. Tnh kh ca kim loi tng theo chiu gim ca ca nng lng ion ho.C. Tnh kh ca kim loi tng theo chiu tng ca th in cc chun.D. Tnh kh ca kim loi tng theo chiu tng ca m in.

Cu 51: Cht no sau y khng b phn hu khi nung nng?A. Mg(NO3)2. B. CaCO3. C. CaSO4. D. Mg(OH)2.

Cu 52: Theo thuyt Bron stet, ion no sau y (trong dung dch) c tnh lng tnh?A. 23CO

. B. OH. C. Ca2+. D. 3HCO .

Cu 53:Nc t nhin c cha ion no di y th c gi l nc c tnh cng tm thi?A. Ca2+, Mg2+, Cl. B. Ca2+, Mg2+, 24SO

.

C. Cl, 24SO , 3HCO

, Ca2+. D. 3HCO , Ca2+, Mg2+.

Cu 54: Mt loi nc cng khi c un si th mt tnh cng. Trong loi nc cng ny c ho tan nhng hp chno sau y?

A. Ca(HCO3)2, MgCl2. B. Ca(HCO3)2, Mg(HCO3)2.C. Mg(HCO3)2, CaCl2. D. MgCl2, CaSO4.

Cu 55: Khi in phn MgCl2 nng chy th

A. cc dng, ion Mg2+ b oxi ho. B. cc m, ion Mg2+ b kh.C. cc dng, nguyn t Mg2+ b oxi ho. D. cc m, nguyn t Mg b kh.

Cu 56: in phn mt mui kim loi M nng chy vi cng dng in l 10A trong thi gian 2 gi, ngi ta thc catot 0,373 mol kim loi M. S oxi ho ca kim loi M trong mui l

A. +1. B. +2. C. +3. D. +4.Cu 57: 1,24 gam Na2O tc dng vi nc, c 100 ml dung dch. Nng mol ca cht trong dung dch l

A. 0,04M. B. 0,02M. C. 0,4M. D. 0,2M.Cu 58: Pht biu no di y l ng?

A. Nhm l mt kim loi lng tnh. B. Al(OH)3 l mt baz lng tnh.C. Al2O3 l mt oxit trung tnh. D. Al(OH)3 l mt hiroxit lng tnh.

Cu 59: Trong nhng cht sau, cht no khng c tnh lng tnh?

A. Al(OH)3. B. Al2O3. C. ZnSO4. D. NaHCO3.Cu 60: C 4 mu bt kim loi l Na, Al, Ca, Fe. Ch dng nc lm thuc th th s kim loi c th phn bit c ta l bao nhiu?

A. 1. B. 2. C. 3. D. 4.Cu 61: in phn Al2O3 nng chy vi dng in cng 9,65A trong thi gian 3000 giy, thu c 2,16 gam AHiu sut ca qu trnh in phn l

A. 60%. B. 70%. C. 80%. D. 90%.Cu 62: Nhm hiroxit thu c t cch no sau y?

A. Cho d dung dch HCl vo dung dch natri aluminat.B. Thi d kh CO2 vo dung dch aluminat.C. Cho d dung dch NaOH vo dung dch AlCl3.

D. Cho Al2O3 tc dng vi nc.Cu 63: Ch dng ho cht no sau y c th phn bit 3 cht rn l Mg, Al v Al 2O3?A. dung dch HCl. B. dung dch KOH. C. dung dch NaCl. D. dung dch CuCl2.

Cu 64: Cc dung dch ZnSO4 v AlCl3 u khng mu. phn bit hai dung dch ny ta c th dng dung dch ccht no sau y?

A. NaOH. B. HNO3. C. HCl. D. NH3.Cu 65: Hin tng no sau y ng khi cho t t dung dch NH3 n d vo ng nghim ng dung dch AlCl3?

A. Si bt kh, dung dch vn trong sut v khng mu.B. Si bt kh v dung dch c dn do to ra cht kt ta.C. Dung dch c dn do to ra cht kt ta sau kt ta tan v dung dch li trong sut.D. Dung dch c dn do to ra cht kt ta v kt ta khng tan khi cho d dung dch NH 3.


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Cu 66: Trong 1 lt dung dch Al2(SO4)3 0,15M c tng s mol cc ion do mui phn ly ra (b qua s thu phn cmui) l

A. 0,15 mol. B. 0,3 mol. C. 0,45 mol. D. 0,75 mol.Cu 67: Ho tan hon ton m gam Al vo dung dch HNO3 rt long th thu c hn hp gm 0,015 mol N2O v 0,0mol kh NO. Gi tr ca m l

A. 13,5 gam. B. 1,35 gam. C. 0,81 gam. D. 8,1 gam.

Cu 68: Cho 5,4 gam Al vo 100 ml dung dch KOH 0,2M. Sau khi phn ng xy ra hon ton th tch kh H2 (ktc) thc l

A. 4,48 lt. B. 0,448 lt. C. 0,672 lt. D. 0,224 lt.Cu 69: Nung nng hn hp gm 10,8 gam bt Al vi 16 gam bt Fe2O3 (khng c khng kh), nu hiu sut phn nl 80% th khi lng Al2O3 thu c l

A. 8,16 gam. B. 10,20 gam. C. 20,40 gam. D. 16,32 gam.Cu 70: t chy bt Al trong bnh Cl2 d, sau khi phn ng xy ra hon ton, khi lng cht rn trong bnh tng 4,2gam. Khi lng Al tham gia phn ng l

A. 2,16 gam. B. 1,62 gam. C. 1,08 gam. D. 3,24 gam.Cu 71: Cho 4,005 gam AlCl3 vo 100 ml dung dch NaOH 0,1M. Sau khi phn ng xong thu c bao nhiu gam kta?

A. 1,56 gam. B. 2,34 gam. C. 2,60 gam. D. 1,65 gam.Cu 72: kh hon ton m gam hn hp CuO v PbO cn 8,1 gam kim loi Al, sau phn ng thu c 50,2 gam hhp 2 kim loi. Gi tr ca m l

A. 57,4 gam. B. 54,4 gam. C. 53,4 gam. D. 56,4 gam.Cu 73: Cho 16,2 gam kim loi X (c ho tr n duy nht) tc dng vi 3,36 lt O2 (ktc), phn ng xong thu c chrn A. Cho A tc dng ht vi dung dch HCl thy c 1,2 gam kh H2 thot ra. Kim loi X l

A. Mg. B. Zn. C. Al. D. Ca.Cu 74: Cho 3,04 gam hn hp NaOH v KOH tc dng vi axit HCl thu c 4,15 gam hn hp mui clorua. Khlng ca mi hiroxit trong hn hp ln lt l

A. 1,17 gam v 2,98 gam. B. 1,12 gam v 1,6 gam.C. 1,12 gam v 1,92 gam. D. 0,8 gam v 2,24 gam.

Cu 75: Sc 6,72 lt kh CO2 (ktc) vo dung dch c cha 0,25 mol Ca(OH)2. Khi lng kt ta thu c lA. 10 gam. B. 15 gam. C. 20 gam. D. 25 gam.Cu 76: Cht no sau y c th l mm nc cng c tnh cng vnh cu?

A. NaCl. B. H2SO4. C. Na2CO3. D. HCl.Cu 77: Cch no sau y thng c dng iu ch kim loi Ca?

A. in phn dung dch CaCl2 c mng ngn.B. in phn CaCl2 nng chy.C. Dng Al kh CaO nhit cao.D. Dng kim loi Ba y Ca ra khi dung dch CaCl2.

Cu 78: Sc a mol kh CO2 vo dung dch Ca(OH)2 thu c 3 gam kt ta. Lc tch kt ta, dung dch cn li manun nng thu thm c 2 gam kt ta na. Gi tr ca a l

A. 0,05 mol. B. 0,06 mol. C. 0,07 mol. D. 0,08 mol.Cu 79: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 hiroxit Al2O3 bn vng bo v. D. nhm c tnh th vi khng kh v nc.

Cu 80:Nhm khng tan trong dung dch no sau y?A. HCl. B. H2SO4. C. NaHSO4. D. NH3.

Cu 81: Cho 31,2 gam hn hp bt Al v Al2O3 tc dng vi dung dch NaOH d thu c 13,44 lt H2 (ktc). Khlng tng cht trong hn hp ban u ln lt l

A. 16,2 gam v 15 gam. B. 10,8 gam v 20,4 gam.C. 6,4 gam v 24,8 gam. D. 11,2 gam v 20 gam.


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Cu 82: Cho Al + HNO3 Al(NO3)3 + NO + H2O. S phn t HNO3 b Al kh v s phn t HNO3 to munitrat trong phn ng l

A. 1 v 3. B. 3 v 2. C. 4 v 3. D. 3 v 4.Cu 83: Mt pin in ho c cu to bi cc cp oxi ho - kh Al3+/Al v Cu2+/Cu. Phn ng ho hc xy ra khi pihot ng l

A. 2Al + 3Cu 2Al3+ + 3Cu2+. B. 2Al3+ + 3Cu 2Al + 3Cu2+.C. 2Al + 3Cu2+ 2Al3+ + 3Cu. D. 2Al3+ + 3Cu2+ 2Al + 3Cu.

Cu 84: Hp cht no sau y ca nhm tc dng vi dung dch NaOH (theo t l mol 1:1) cho sn phm Na[Al(OH)4]?A. Al2(SO4)3. B. AlCl3. C. Al(NO3)3. D. Al(OH)3.

Cu 85: Dy no di y gm cc cht va tc dng c vi dung dch axit va tc dng c vi dung dch kim?A. AlCl3 v Al2(SO4)3. B. Al(NO3)3 v Al(OH)3.C. Al2(SO4)3 v Al2O3. D. Al(OH)3 v Al2O3.

Cu 86: Bin i ho hc no sau y l do Al(OH)3 c tnh axit?A. Al(OH)3 (r) Al

3+ (dd). B. Al(OH)3 (r) Al2O3 (r).C. Al(OH)3 (r) [Al(OH)4]

-. D. Al(OH)3 (r) Al2O3 Al (r).Cu 87: Ho tan hon ton 10 gam hn hp gm Al v Al2O3 trong dung dch NaOH d thu c 6,72 lt kh H2 (ktc

Phn trm khi lng ca Al trong hn hp lA. 48%. B. 50%. C. 52%. D. 54%.Cu 88: C 3 l, mi l ng dung dch sau: BaCl2, Ba(NO3)2, Ba(HCO3)2. Ch dng thuc th no sau y c th nhbit c cc dung dch trn?

A. qu tm. B. phenolphtalein. C. Na2CO3. D. AgNO3.Cu 89: in phn nng chy 4,25 gam mui clorua ca mt kim loi kim thu c 1,568 lt kh ti anot (o 109,2o

v 1 atm). Kim loi kim lA. Li. B. Na. C. K. D. Rb.

Cu 90: Cho 21,6 gam mt kim loi cha bit ho tr tc dng ht vi dung dch HNO 3 long thu c 6,72 lt N2O dunht (ktc). Kim loi l

A. Na. B. Zn. C. Mg. D. Al.

Cu 91: Sc 11,2 lt kh SO2 (ktc) vo dung dch NaOH d, dung dch thu c cho tc dng vi BaCl2 d th khlng kt ta thu c lA. 107,5 gam. B. 108,5 gam. C. 106,5 gam. D. 105,5 gam.

Cu 92: Sc kh SO2 (ktc) vo dung dch brom d thu c dung dch X. Cho BaCl2 d vo dung dch X thu c 23,gam kt ta. Gi tr ca V l

A. 1,12. B. 2,24. C. 3,36. D. 6,72.Cu 93: Cho 5,75 gam hn hp Mg, Al v Cu tc dng vi dung dch HNO3 long, d thu c 1,12 lt kh (ktc) hhp kh X gm NO v N2O (ktc). T khi ca X i vi kh H2 l 20,6. Khi lng mui nitrat sinh ra trong dung dcl

A. 27,45 gam. B. 13,13 gam. C. 58,91 gam. D. 17,45 gam.Cu 94: Pht biu no sau y ng khi ni v nhm oxit?

A. Al2O3 c sinh ra khi nhit phn mui Al(NO3)3.B. Al2O3 b kh bi CO nhit cao.C. Al2O3 tan c trong dung dch NH3.D. Al2O3 l oxit khng to mui.

Cu 95: C cc dung dch: KNO3, Cu(NO3)2, FeCl3, AlCl3, NH4Cl. Ch dng ho cht no sau y c th nhn bit cc dung dch trn?

A. dung dch NaOH d. B. dung dch AgNO3. C. dung dch Na2SO4. D. dung dch HCl.Cu 96: Ho tan hon ton m gam bt Al vo dung dch HNO3 d ch thu c 8,96 lt hn hp kh X gm NO v N2O(ktc) c t l mol l 1 : 3. Gi tr ca m l

A. 24,3. B. 42,3. C. 25,3. D. 25,7.


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Cu 97: Trn 24 gam Fe2O3 vi 10,8 gam Al ri nung nhit cao (khng c khng kh). Hn hp thu c sau phng em ho tan vo dung dch NaOH d thu c 5,376 lt kh (ktc). Hiu sut ca phn ng nhit nhm l

A. 12,5%. B. 60%. C. 80%. D. 90%.Cu 98: Cho 7,8 gam hn hp Mg v Al tc dng ht vi dung dch HCl d. Sau phn ng thy khi lng dung dctng thm 7 gam. S mol HCl tham phn ng l

A. 0,8 mol. B. 0,7 mol. C. 0,6 mol. D. 0,5 mol.

Cu 99: Cho 23,4 gsm kim loi X (c ho tr n duy nht) tc dng vi 5,04 lt kh O2 (ktc) thu c cht rn A. Cho Atc dng ht vi dung dch HCl thy c 1,8 gam kh H2 thot ra. Kim loi X l

A. Mg. B. Zn. C. Al. D. Ca.Cu 100:Nung 21,4 gam hn hp A gm bt Al v Fe2O3 (phn ng nhit nhm), thu c hn hp B. Cho B tc dnht vi dung dch HCl d c dung dch C. Cho C tc dng vi dung dch NaOH d c kt ta D. Nung D tronkhng kh n khi lng khng i thu c 16 gam cht rn. Khi lng ca Al v Fe2O3 trong hn hp A ln lt l

A. 4,4 gam v 17 gam. B. 5,4 gam v 16 gam. C. 6,4 gam v 15 gam. D. 7,4 gam v 14 gam.Cu 101: Cho 10,5 gam hn hp gm bt Al v mt kim loi kim M vo nc. Sau phn ng thu c dung dch A v5,6 lt kh (ktc). Cho t t dung dch HCl vo dung dch A lng kt ta thu c l ln nht. Lc kt ta, sy khcn c 7,8 gam. Kim loi M l

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

Cu 102: C 3 cht rn: Mg, Al, Al2O3 ng trong 3 l mt nhn. Ch dng mt thuc th no sau y c th nhn bic mi cht?

A. dung dch HCl. B. dung dch H2SO4. C. dung dch CuSO4. D. dung dch NaOH.Cu 103: Cho 700 ml dung dch KOH 0,1M vo 100 ml dung dch AlCl 3 0,2M. Sau phn ng, khi lng kt ta to rl

A. 0,78 gam. B. 1,56 gam. C. 0,97 gam. D. 0,68 gam.Cu 104: Cho 100 ml dung dch hn hp gm Al2(SO4)3 1M v CuSO4 1M tc dng vi dung dch NaOH d. Kt tthu c em nung n khi lng khng i thu c cht rn c khi lng l

A. 4 gam. B. 6 gam. C. 8 gam. D. 10 gam.Cu 105: Trn 100 ml dung dch AlCl3 1M vi 200 ml dung dch NaOH 2,25M c dung dch X. kt ta hon toion Al3+ trong dung dch X di dng hiroxit cn dng mt th tch kh CO2 (ktc) l

A. 2,24 lt. B. 3,36 lt. C. 1,12 lt. D. 6,72 lt.Cu 106: Cho 200 ml dung dch NaOH vo 400 ml dung dch Al(NO3)3 0,2M thu c 4,68 gam kt ta. Nng moca dung dch NaOH ban u l

A. 0,8M hoc 1,1M. B. 0,9m hoc 1,2M. C. 0,8M hoc 1,4M. D. 0,9M hoc 1,3M.Cu 107: Trn u 0,54 gam bt Al vi bt Fe2O3 v CuO ri tin hnh phn ng nhit nhm thu c hn hp X. ChX tc dng vi dung dch HNO3 c hn hp kh NO v NO2 c t l s mol tng ng l 1 : 3. Th tch kh NO vNO2 (ktc) trong hn hp ln lt l

A. 0,224 lt v 0,672 lt. B. 2,24 lt v 6,72 lt. C. 0,672 lt v 0,224 lt. D. 6,72 lt v 2,24 lt.Cu 108: Cho dung dch NH3 vo 20 ml dung dch Al2(SO4)3 n d, kt ta thu c em ho tan bng dung dcNaOH d c dung dch A. Sc kh CO2 d vo dung dch A, kt ta thu c em nung nng n khi lng khni c 2,04 gam cht rn. Nng mol ca dung dch Al2(SO4)3 ban u l

A. 0,4M. B. 0,6M. C. 0,8M. D. 1M.

PHN III: BI TP TRC NGHIM TNG HPKIM LOI KIM KIM LOI KIM TH NHM

Cu 1: Nhng nguyn t nhm IA ca bng tun hon c sp xp theo trnh t tng dn caA. nguyn t khi. B. bn knh nguyn t.C. s oxi ho. D. in tch ht nhn ca nguyn t.

Cu 2: Kim loi c tnh kh mnh nht trong cc kim loi kim (Li, Na, K, Cs) lA. Li. B. Na. C. K. D. Cs.


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Cu 3: Nhng c im no sau y l chung cho cc kim loi nhm IA?A. S lp electron. B. Bn knh nguyn t.C. in tch ht nhn ca nguyn t. D. S oxi ho ca cc nguyn t trong hp cht.

Cu 4: Kim loi kim c tnh kh mnh nht trong tt c cc kim loi l do nguyn nhn no sau y?A. Kim loi kim d nng chy nht nn d nhng electron.B. Kim loi kim nh nht nn d nhng electron.

C. Kim loi kim c nng lng ion ho I1 nh nht.D. Kim loi kim ch c s oxi ho +1 trong cc hp cht.

Cu 5: Nhn nh khng ng v ng dng ca kim loi kim?A. Ch to hp kim c nhit nng chy thp dng trong thit b bo chy.B. Dng iu ch mt s kim loi him bng phng php nhit luyn.C. M bo v kim loi.D. Kim loi Cs dng ch to t bo quang in.

Cu 6: bo qun cc kim loi kim ngi taA. ngm chng trong nc. B. ngm chng trong ancol etylic.C. gi chng trong l c y np kn. D. ngm chng trong du ho.

Cu 7: Kim loi kim c nhit nng chy thp v mm l do

A. c cu to mng tinh th lp phng tm din tng i rng.B. c khi lng ring nh.C. c tnh kh rt mnh.D. c lc lin kt kim loi trong mng tinh th km bn.

Cu 8: Ho tan hon ton 1,36 gam hn hp 2 kim loi kim k tip nhau trong nhm IA vo nc c 0,56 lkh H2 (ktc). 2 kim loi l

A. Li, Na. B. Na, K. C. K, Rb. D. Rb, Cs.Cu 9: Ion Na+khng tn ti trong phn ng no sau y?

A. NaOH tc dng vi HCl. B. NaOH tc dng vi CuCl2.C. phn hu NaHCO3 bng nhit. D. in phn NaOH nng chy.

Cu 10: Phng trnh ho hc no di y khng ng?

A. 2NaHCO3 + 2KOH Na2CO3 + K2CO3 + 2H2O.B. 2NaCl + 2H2O

p ddc m ng ng n

2NaOH + H2 + Cl2.

C. 2KNO30t

2K + 2NO2 + O2.D. Ca(HCO3)2 + Na2CO3 CaCO3 + 2NaHCO3.

Cu 11: Cho a mol CO2 vo dung dch cha b mol NaOH, thu c dung dch X. Dung dch X va tc dng vi HCl va tc dng c vi KOH. Quan h gia a v b l

A. a > b. B. b > 2a. C. a = b. D. a < b < 2a.Cu 12: 100 ml dung dch X cha 2,17 gam hn hp gm: NaOH, Na2CO3 v Na2SO4. Cho BaCl2 d vo dundch X thu c kt ta v dung dch Y. trung ho dung dch Y cn 20 ml dung dch HCl 0,5M. Mt khc, 5ml dung dch X tc dng va ht vi dung dch HCl c 112 ml kh (ktc). Nng mol ca Na 2SO4 trong dun

dch X lA. 0,5M. B. 0,05M. C. 0,12M. D. 0,06M.Cu 13: Pht biu no di y khng ng?

A. Phng php duy nht iu ch kim loi kim l phng php in phn.B. Kim loi kim c cu hnh electron lp ngoi cng l ns1.C. Kim loi kim c nng lng ion ho I1 nh nht so vi cc kim loi khc nn kim loi kim c tnh khrt mnh.D. Ion kim loi kim c tnh oxi ho rt mnh.

Cu 14: X, Y, Z l cc 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 Y nhit cao to c Z, hi nc v kh E. Bit E l hp cht ca cacbonE tc dng vi X cho Y hoc Z. Vy X, Y, Z, E ln lt l


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

Cu 15: Phn ng no sau y khng to ra 2 mui?A. CO2 + NaOH d. B. NO2 + NaOH d.C. Ca(HCO3)2 + NaOH d. D. Fe3O4 + HCl d.

Cu 16: Trong thng in phn dung dch NaCl iu ch NaOH, cc dng lm bng than ch (graphit)

Ngi ta khng dng st v l do no sau y?A. Than ch khng b kh Cl2 n mn. B. Than ch khng b dung dch NaCl ph hu.C. Than ch dn in tt hn st. D. Than ch r hn st.

Cu 17: Trong cc qu trnh sau y ion Na+ th hin tnh oxi ho hay tnh kh?1. in phn NaOH nng chy.2. in phn dung dch NaOH c mng ngn.3. Nhit phn NaHCO3 nhit cao.A. 1 v 2 th hin tnh oxi ho; 3 th hin tnh kh.B. 1 th hin tnh oxi ho; 2, 3 th hin tnh kh.C. 1 th hin tnh oxi ho; 2, 3 khng th hin tnh oxi ho v kh.D. 1, 2, 3 u th hin tnh oxi ho.

Cu 18: Trong cng nghip iu ch NaOH ngi ta dng phng php no sau y?A. Cho Na tc dng vi nc. B. Cho Na2CO3 tc dng vi dung dch Ca(OH)2.C. in phn dung dch NaCl c mng ngn. D. Cho Na2O tc dng vi nc.

Cu 19: Dung dch X cha hn hp NaOH a mol/l v Ba(OH)2 b mol/l. trung ho 50 ml dung dch X cn 6ml dung dch HCl 0,1M. Mt khc, cho lng d dung dch Na2CO3 vo 100 ml dung dch X c 0,394 gam kta. Gi tr ca a, b ln lt l

A. 0,1; 0,01. B. 0,1; 0,08. C. 0,08; 0,01. D. 0,08; 0,02.Cu 20: C 2 lt dung dch NaCl 0,5M. Khi lng kim loi v th tch kh thu c (ktc) t dung dch trn(hiu sut iu ch t 90%) l

A. 27 gam v 18 lt. B. 20,7 gam v 10,8 lt.C. 10,35 gam v 5,04 lt. D. 31,05 gam v 15,12 lt.

Cu 21: Cho 100 gam CaCO3 tc dng vi dung dch HCl d. Kh thot ra c hp th vo 200 gam dung dcNaOH 30%. Khi lng mui thu c lA. 10,6 gam. B. 16,8 gam. C. 95 gam. D. 100,5 gam.

Cu 22: Cho 6 lt hn hp CO2 v N2 (ktc) i qua dung dch NaOH, sau phn ng thu c dung dch X. ChBaCl2 vo dung dch X c 2,955 gam kt ta, lc b kt ta thu c dung dch Y. Cho Ba(OH)2 d vo Y lc 11,82 gam kt ta. Phn trm th tch CO2 trong hn hp l

A. 42%. B. 56%. C. 28%. D. 50%.Cu 23: in phn dung dch NaOH vi cng dng in khng i l 10A trong thi gian 268 gi. Sau iphn cn li 100 gam dung dch NaOH 24%. Nng phn trm ca dung dch NaOH trc in phn l

A. 1,2%. B. 2,4%. C. 4,8%. D. 9,6%.Cu 24: Cho 5 gam hn hp Na, Na2O v tp cht tr tc dng vi H2O c 1,875 lt kh (ktc). Trung ho

dung dch sau phn ng cn 100 ml dung dch HCl 2M. Phn trm tp cht tr lA. 2%. B. 2,8%. C. 5,6%. D. 1,1%.Cu 25: Cho 16,8 lt CO2 (ktc) hp th hon ton vo 600 ml dung dch NaOH 2M thu c dung dch X. Ncho dung dch BaCl2 d vo dung dch X th thu c bao nhiu gam kt ta?

A. 19,7 gam. B. 88,65 gam. C. 147,75 gam. D. 118,2 gam.Cu 26: Dung dch X cha 0,6 mol NaHCO3 v 0,3 mol Na2CO3. Thm t t dung dch cha 0,8 mol HCl vdung dch X c dung dch Y v V lt kh CO2 (ktc). Thm vo dung dch Y nc vi trong d thy to thnm gam kt ta. Gi tr ca V v m tng ng l

A. 16,8 lt; 60 gam. B. 11,2 lt; 60 gam. C. 11,2 lt; 90 gam. D. 11,2 lt; 40 gam.Cu 27: Thm t t n ht dung dch cha 0,02 mol K2CO3 vo dung dch cha 0,03 mol HCl. Th tch kh CO(ktc) thot ra l


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A. 0,448 lt. B. 0,224 lt. C. 0,112 lt. D. 0,336 lt.Cu 28: Th tch kh H2 khi in phn dung dch cha cng mt lng NaCl c mng ngn (1) v khng c mnngn (2) l

A. bng nhau. B. (2) gp i (1). C. (1) gp i (2). D. khng xc nh c.Cu 29: Trn 150 ml dung dch hn hp gm Na2CO3 1M v K2CO3 0,5M vi 250 ml dung dch HCl 2M. Thtch CO2 (ktc) thot ra l

A. 3,36 lt. B. 2,52 lt. C. 5,04 lt. D. 5,6 lt.Cu 30: Thc hin hon ton cc qu trnh ho hc v in ho hc sau y?

(1) NaOH tc dng vi dung dch HCl. (2) NaOH tc dng vi dung dch CuCl2.(3) Phn hu NaHCO3 bng nhit. (4) in phn NaOH nng chy.(5) in phn dung dch NaOH. (6) in phn NaCl nng chy.

C bao nhiu trng hp ion Na+ c tn ti sau cc qu trnh ho hc v in ha hc nh trnA. 2. B. 3. C. 4. D. 5.

Cu 31: Trong nhng nhn nh sau, nhn nh no khng ng i vi kim loi kim th?A. bn knh nguyn t tng dn. B. tnh kh tng dn.C. nng lng ion ho gim dn. D. th in cc chun E0 tng dn.

Cu 32: Nhn nh no khng ng v cu to v tnh cht vt l ca cc kim loi nhm IIA?

A. khi lng ring tng i nh, chng l nhng kim loi nh hn Al (tr Ba).B. nhit nng chy v nhit si tng i thp (tr Be)C. cng tuy c cao hn kim loi kim nhng nhn chung chng l nhng kim loi mm hn nhm.D. mng tinh th ca chng u l kiu lp phng tm khi.

Cu 33: Nhn nh no sau y khng ng khi ni v kim loi nhm IIA?A. Cc kim loi nhm IIA u c cng mt kiu mng tinh th.B. Kim loi Ca, Sr, Ba u tc dng mnh vi nc nhit thng.C. Trong cc hp cht kim loi nhm IIA thng c s oxi ho +2.D. Tnh kim loi ca cc nguyn t tng dn theo chiu tng ca in tch ht nhn.

Cu 34: Cc nguyn t trong cc cp cht no sau y c tnh cht tng t nhau?A. Mg v S. B. Ca v Br2. C. Ca v Mg. D. S v Cl2.

Cu 35: So snh no gia Ca v Mg sau y khng ng?A. u tc dng vi nc nhit thng.B. u c iu ch bng cch in phn mui clorua nng chy ca chng.C. C s electron ho tr bng nhau.D. Nng lng ion ho I2 ca Mg ln hn ca Ca.

Cu 36: Cu 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 ho gim.B. Tnh kh ca kim loi tng theo chiu nng lng ion ho tng.C. Tnh kh ca kim loi tng theo chiu th in cc chun tng.D. Tnh kh ca kim loi tng theo chiu bn knh nguyn t gim.

Cu 37: Nhm cc kim loi no sau y u tc dng c vi nc nhit thng?

A. K, Pb, Ca, Ba. B. Na, K, Ca, Ba. C. Na, Sn, Ba, Be. D. K, Na, Ba, Fe.Cu 38: Khi so snh vi kim loi kim cng chu k, nhn xt no v kim loi kim th di y l ng?

A. Th in chun m hn. B. cng ln hn.C. Khi lng ring nh hn. D. Nhit si v nhit nng chy thp hn.

Cu 39: Nhn xt no di y khng ng?A. Cc kim loi kim th c tnh kh mnh.B. Tnh kh ca kim loi kim th tng dn t Be n Ba.C. Tnh kh ca kim loi kim th yu hn kim loi kim cng chu k.D. Cc ion kim loi kim th c in tch +1 hoc +2.

Cu 40: iu ch Ca c th dung phng php no sau y?


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A. in phn CaCl2 nng chy.B. dng C kh CaO trong l in.C. dng kim loi Na y Ca ra khi dung dch CaCl2.D. in phn dung dch CaCl2.

Cu 41: Cho s sau: CaXY Z TCa. Th t cc cht X, Y, Z, T c th lA. CaO, Ca(OH)2, Ca(HCO3)2, CaCO3. B. CaO, CaCO3, Ca(HCO3)2, CaCl2.

C. CaCl2, CaCO3, CaO, Ca(HCO3)2. D. CaO, CaCl2, CaCO3, Ca(OH)2.Cu 42: Cho s chuyn ho sau:

X1

X2

Y1

Y2

Ca(OH)2

Na2SO

4

CO2

X

+

+ HCl +Z

++ ....

+ ....

Cht X c th lA. CaCO3. B. BaSO3. C. BaCO3. D. MgCO3.

Cu 43: Cho s sau: Ca X 2H O Y Z 2 2CO H O+ Got

H

Cht rn H lA. CaCO3. B. CaO. C. Ca(OH)2. D. Ca(HCO3)2.Cu 44: Mt dung dch cha cc ion: Na+, Ca2+, Mg2+, Ba2+, H+, Cl. Phi dng dung dch cht no sau y loi ht cc ion: Ca2+, Ba2+, Mg2+, H+ ra khi dung dch ban u m khng a thm ion l vo?

A. dung dch Na2SO4 va . B. dung dch K2CO3 va .C. dung dch Na2CO3 va . D. dung dch AgNO3 va .

Cu 45: phn bit 4 cht rn: Na2CO3, CaCO3, Na2SO4, CaSO4.2H2O ng trong 4 l mt nhn ring bingi ta dng nhm thuc th no sau y?

A. Qu tm m, dung dch H2SO4 c. B. H2O v dung dch HCl.C. H2O v dung dch NaOH. D. Dung dch NaOH v dung dch phenolphtalein.

Cu 46: M l kim loi trong s cc kim loi sau: Cu, Ba, Zn, Mg. Dung dch mui MCl2 phn ng vi dung dc

Na2CO3 hoc Na2SO4 to kt ta, nhng khng to kt ta kh phn ng vi dung dch NaOH. M lA. Mg. B. Zn. C. Cu. D. Ba.Cu 47: Ngi ta s dng kim loi Ca v dung dch AgNO3 thc hin s bin i ca dy bin ho

A. NaCl AgCl Ag. B. CaCl2 Cl2 HCl.C. CaCl2 KCl AgCl. D. HCl CaCl2 AgCl.

Cu 48: ng dng no sau y khng phi ca Ca(OH)2?A. lm vi va xy nh. B. kh chua t trng trt.C. b bt khi b gy xng. D. ch to clorua vi l cht ty trng v kh trng.

Cu 49: Phn ng no di y ng thi gii thch s to thnh thch nh trong hang ng v s xm nhp cnc ma i vi vi?

A. CaCO3 + H2O + CO2 Ca(HCO3)2. B. Ca(HCO3)2 CaCO3 + CO2 + H2O.

C. Ca(OH)2 + 2CO2 Ca(HCO3)2. D. CaCO3 + HCl CaCl2 + CO2 + H2O.Cu 50: C 5 l ng 5 ho cht ring bit: Ba(OH)2, H2SO4, Na2SO4, Na2CO3, NaNO3. Thuc th dng nhbit chng l

A. dung dch HCl. B. dung dch KOH.C. dung dch BaCl2. D. giy qu tm.

Cu 51: Nhn nh no sau y khng ng?A. Nc c cha nhiu ion Ca2+, Mg2+ gi l nc cng.B. Nc cha t hoc khng cha cc ion Ca2+, Mg2+ gi l nc mm.C. Nc cng c cha anion 3HCO

l nc cng tm thi; cha anion Cl hoc 24SO hoc c hai l n

cng vnh cu.


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D. Nc t nhin thng ch c tnh cng tm thi.Cu 52: Nhn nh no sau y khng ng v cch lm mm nc cng?

A. lm gim nng cc ion Ca2+, Mg2+ trong nc cng.B. thay th cc ion Ca2+, Mg2+ trong nc cng bng ion Na+.C. chuyn cc ion Ca2+, Mg2+ vo hp cht khng tan.D. lm gim nng cc ion 3HCO

, Cl, 24SO trong nc cng.

Cu 53: Nc cng khng gy tc hi no sau y?A. Lm gim kh nng ty ra ca x phng, lm cho qun o mau mc nt.B. Gy lng ph nhin liu v mt an ton cho cc ni hi, lm tc cc ng ng nc nng.C. Gy ng c cho nc ung.D. Lm hng dung dch pha ch, lm thc phm lu chn v gim mi v ca thc phm.

Cu 54: Cho cc phn ng biu th cc phng php khc nhau lm mm nc cng (dng M 2+ thay cho Ca2

v Mg2+).1. M2+ + 23CO

MCO3 . 2. M2+ + 3HCO

+ OH MCO3+ H2O.

3. 3M2+ 2 34PO M3(PO4)2. 4. M(HCO3)2

ot MCO3 + CO2 + H2O.

Phng php ch dng lm mm nc cng tm thi lA. 4. B. 2, 4. C. 1, 2, 3, 4. D. 2.

Cu 55: Nhn nh no khng ng v cch lm mm nc cng?A. un si nc cng lm mt tnh cng tm thi ca nc.B. Cho nc cng i qua cht trao i ion (cc ht zeolit) loi b cc ion Ca2+ v Mg2+ ra khi nc cng.C. Thm dung dch Na2CO3 kh tnh cng tm thi v tnh cng vnh cu ca nc.D. Thm mt lng d dung dch nc vi trong vo nc cng kh tnh cng tm thi ca nc.

Cu 56: C 3 cc ng ln lt: nc ma, nc cng tm thi, nc cng vnh cu. Phng php ho hc dn nhn ra mi cc l

A. dng dung dch Na2CO3. B. dng dung dch Na3PO4.C. un si sau dng dung dch Na2CO3. D. ch cn un si.

Cu 57: C th dng cht no sau y: HCl, NaCl, Ca(OH)2, Na2CO3 lm mm nc cng tm thi?

A. dng dung dch HCl.B. dng dung dch NaCl.C. dng dung dch Ca(OH)2 va hoc dung dch Na2CO3.D. dng c c 4 cht trn.

Cu 58: Hp cht ca canxi no sau y khng gp trong t nhin?A. CaCO3. B. CaSO4. C. Ca(HCO3)2. D. CaO.

Cu 59: phn bit CaCO3 v MgCO3 dng thuc th no sau y?A. H2SO4. B. HCl. C. CO2 + H2O. D. NaBr.

Cu 60: Trong mt cc nc cha 0,02 mol Ca2+; 0,01 mol Mg2+; 0,04 mol 3HCO ; 0,02 mol Cl. Nc trong c

thuc loiA. nc cng tm thi. B. nc cng vnh cu.C. nc cng ton phn. D. nc mm.

Cu 61: Trong cc phng php lm mm nc cng, phng php ch kh c cng tm thi ca nc lA. phng php ho hc (s dng Na2CO3, Na3PO4).B. phng php nhit.C. phng php trao i ion.D. phng php lc.

Cu 62: Cho V ml (ktc) CO2 vo 300 ml dung dch Ca(OH)2 0,02M th thu c 0,2 gam kt ta. Gi tr ca Vl

A. 44,8 ml hoc 89,6 ml. B. 44,8 ml.C. 44,8 ml hoc 224 ml. D. 89,6 ml.


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Cu 63: Dn V lt (ktc) kh SO2 qua 100 ml dung dch Ca(OH)2 1M thu c 7,2 gam kt ta. Lc b kt ta, lnc lc un nng li thu c thm kt ta na. Gi tr ca V l

A. 3,136. B. 3,36 hoc 1,12. C. 1,344. D. 1,344 hoc 3,136.Cu 64: Sc 2,24 lt CO2 vo 100 ml dung dch hn hp gm Ca(OH)2 0,5M v KOH 2M th thu c m gam kta. Gi tr ca m l

A. 0,0 gam. B. 30 gam. C. 10 gam. D. 5 gam.

Cu 65: Trn 100 ml dung dch gm Ba(OH)2 0,1M v NaOH 0,1M vi 400 ml dung dch gm H 2SO4 0,0375Mv HCl 0,0125M, thu c dung dch X. Gi tr pH ca dung dch X l

A. 1. B. 2. C. 6. D. 7.Cu 66: Nung 13,5 gam hn hp mui cacbonat ca hai kim loi ho tr 2, thu c 6,9 gam cht rn v kh X. Lnkh X sinh ra cho hp th vo 75 ml dung dch NaOH 1M. Khi lng mui khan thu c sau phn ng l

A. 5,8 gam. B. 6,5 gam. C. 4,2 gam. D. 6,3 gam.Cu 67: Cho 200 ml dung dch X cha MgCl2 v BaCl2 tc dng vi dung dch NaOH d c kt ta Y. Nung kt tY n khi lng khng i c 6 gam cht rn. Mt khc, cho 400 ml dung dch X tc dng vi dung dch H2SO4 dc 46,6 gam kt ta. Nng mol ca dung dch MgCl2 v BaCl2 trong hn hp X l

A. 0,75M; 0,5M. B. 0,5M; 0,75M. C. 0,75M; 1M. D. 0,0075M; 0,005M.Cu 68: Dung dch X cha 0,025 mol 23CO

; 0,01 mol Na+; 0,25 mol 4NH+ v 0,3 mol Cl . Cho 270 ml dung dc

Ba(OH)2 0,2M vo v un nng nh (gi s hi nc bay hi khng ng k). Tng khi lng dung dch X v dundch Ba(OH)2 sau phn ng gim i l

A. 4,215 gam. B. 5,296 gam. C. 6,761 gam. D. 7,015 gam.Cu 69: Dung dch X cha a mol Na+, b mol 3HCO

, c mol 23CO v d mol 24SO

. to kt ta ln nht ngi t

phi dng 100 ml dung dch Ba(OH)2 x mol/l. Biu thc tnh x theo a v b l

A. x =a b

0,2

+. B. x =

a b

2

+. C. x =

a b

0,1

+. D. x =

a b

0,3

+.

Cu 70: Trong mt cc nc cng cha a mol 2Ca + ; b mol 2Mg + v c mol 3HCO . Dng dung dch Ca(OH)2 x mol

lm gim cng ca nc th thy khi thm V lt nc vi trong vo cc, cng trong cc l nh nht. Biu thtnh V theo a, b, x l

A. V =a b

x

+. B. V =

a 2b

x

+. C. V =

2a b

x

+. D. V =

a b

2x

+.

Cu 71: Mt loi vi cha 80%, phn cn lai l tp cht tr. Nung a gam vi mt thi gian th thu c chrn nng 0,78a gam. Hiu sut phn hu CaCO3 l

A. 60%. B. 65%. C. 62,5%. D. 70,5%.Cu 72: C 500 ml dung dch X cha Na+, 4NH

+ , 23CO , 24SO

. Ly 100 ml dung dch X cho tc dng vi dun

dch HCl d c 2,24 lt CO2 (ktc). Mt khc, cho 100 ml dung dch X cho tc dng vi lng d dung dcBaCl2 th thu c 43 gam kt ta. Ly 100 ml dung dch X cho tc dng vi dung dch NaOH d th c 4,4lt kh (ktc). Tng khi lng mui c trong 500 ml dung dch X l

A. 43,1 gam. B. 86,2 gam. C. 119 gam. D. 50,8 gam.

Cu 73: Khi thm rt t t dung dch cha 0,3 mol HCl vo 500 ml dung dch Na 2CO3 0,4M n khi kt thphn ng c dung dch X v kh Y. Thm nc vi trong d vo dung dch c m gam kt ta. Gi tr ca ml

A. 15 gam. B. 10 gam. C. 8 gam. D. 5 gam.Cu 74: C 28,1 gam hn hp MgCO3 v BaCO3, trong MgCO3 chim a% v khi lng. Cho hn hp trn tc dnht vi dung dch HCl ly kh CO2 ri em sc vo dung dch c cha 0,2 mol Ca(OH)2 c kt ta X. Gi tr ca kt ta X thu c l ln nht

A. 59,78%. B. 29,89%. C. 14,945%. D. 44,835%.Cu 75: Cho 112 ml kh CO2 (ktc) hp th hon ton bi 200 ml dung dch Ca(OH)2 thu c 0,1 gam kt ta. Nn mol ca dung dch Ca(OH)2 l

A. 0,5M. B. 0,05M. C. 0,015M. D. 0,02M.


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Cu 76: Cho V lt kh CO2 (o 54,6oC v 2,4 atm) hp th hon ton vo 200 ml dung dch KOH 1M v Ba(OH)

0,75M thu c 23,64 gam kt ta. Gi tr ca V lA. 2,688 hoc 8,512. B. 4,25. C. 1,344 hoc 4,256. D. gi tr khc.

Cu 77: Nhit phn hon ton 38 gam hn hp X gm MgCO3 v Mg(NO3)2 thu c 13,44 lt hn hp kh Y (ktcPhn trm khi lng ca MgCO3 trong hn hp X l

A. 22,11%. B. 77,89%. C. 46,95%. D. 53,05%.

Cu 78: Cho 10 gam mt kim loi kim th tc dng vi nc, thu c 6,11 lt kh H2 (25oC v 1 atm). Kim loi kimth l

A. Sr. B. Ca. C. Mg. D. Ba.Cu 79: 1 lt dung dch hn hp X gm HCl v H2SO4 long c trung ho bng dung dch 0,4 mol NaOH. Nu cho lt dung dch hn hp X tc dng ht vi Mg th s mol H2 sinh ra l

A. 0,4. B. 0,3. C. 0,2. D. 0,1.Cu 80: Ho tan 8,2 gam hn hp bt CaCO3 v MgCO3 trong nc cn 2,016 lt CO2 (ktc). Thnh phn phn trm smol ca CaCO3 trong hn hp l

A. 44,44%. B. 48,78. C. 51,22%. D. 55,56%.Cu 81: Dung dch X c cha cc ion Ba2+, Cl, 3NO

c tng khi lng mui trong X l 13,54 gam. lm kt ta h

ion Ba2+ trong X cn 100 ml dung dch Na2SO3 0,6M, thu c m gam kt ta v dung dch Y. Khi lng mui ctrong dung dch Y l

A. 8,08 gam. B. 9,08 gam. C. 7,54 gam. D. 9,64 gam.Cu 82: Cho 2,688 lt kh CO2 (ktc) hp th hon ton bi 200 ml dung dch NaOH 0,1M v Ca(OH)2 0,1M. Tng khlng cc mui thu c l

A. 1,26 gam. B. 2,16 gam. C. 1,06 gam. D. gi tr khc.Cu 83: Sc 2,24 lt kh CO2 (ktc) vo 100 ml dung dch hn hp gm Ca(OH)2 0,5M v KOH 2M th thu c m gamkt ta. Gi tr ca m l

A. 5. B. 30. C. 10. D. khng thu c kt ta.Cu 84: Nhn nh no sau y khng v Al?

A. Al c tnh kh mnh nhng yu hn Na v Mg.B. Al thuc chu k 3, nhm IIIA, s 13 trong bng tun hon.C. Al dn in, dn nhit tt, tt hn cc kim loi Fe v Cu.D. Al d nhng 3 electron ho tr nn thng c s oxi ho +3 trong cc hp cht.

Cu 85: T Al n Mg, Na theo chiu tnh kh tng dnA. nng lng ion ho I1 gim dn, ng thi th in cc gim dn.B. nng lng ion ho I1 tng dn, ng thi th in cc gim dn.C. nng lng ion ho I1 tng dn, ng thi th in cc tng dn.D. nng lng ion ho I1 gim dn, ng thi th in cc gim dn.

Cu 86: Nhn nh no sau y khng ng v tnh cht ca cc kim loi Na, Mg, Al.A. Na l kim loi c tnh kh mnh hn Mg, Al.B. Al tan trong dung dch NaOH cng nh trong Mg(OH)2 gii phng H2.C. Na, Mg, Al u kh d dng ion H+ trong dung dch axit HCl, H2SO4 long thnh H2.

D. Al c th kh nhiu oxit kim loi nh: Fe2O3, Cr2O3,... nhit cao thnh kim loi t do.Cu 87: Trong qu trnh sn xut Al bng cch in phn Al2O3 nng chy, criolit c vai tr nh sau:

(1) Criolit c cho vo h nhit nng chy ca hn hp, t tit kim nng lng.(2) Criolit nng chy ho tan Al2O3 to ra cht lng c tnh dn in tt hn Al2O3 nng chy.(3) Criolit nng chy ho tan Al2O3 to iu kin cho Al2O3 d dng tc dng trc tip vi C (ca in cc) tthnh Al nng chy.(4) Al2O3 tan trong criolit nng chy to ra hn hp c khi lng ring nh hn Al ni ln trn v bo v Anng chy khng b oxi ho bi O2 khng kh.A. (1), (3), (4). B. (1), (2), (3). C. (2), (3), (4). D. (1), (2), (4).


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Cu 88: Cho phn ng: Al + NaOH + 3H2O Na[Al(OH)4] +3

2H2

Cht tham gia phn ng ng vai tr cht oxi ho lA. NaOH. B. Na[Al(OH)4]. C. H2O. D. Al.

Cu 89: C th dng bnh bng Al chuyn ch cc dung dch no sau y?A. dung dch KOH, NaOH.B. dung dch HNO3, dung dch H2SO4.C. dung dch HNO3 c ngui v H2SO4 c ngui.D. dung dch HCl, H2SO4.

Cu 90: Phng trnh in phn Al2O3 nng chy: 2Al2O3pnc 4Al + 3O2

cc m xy ra qu trnh:A. Al Al3+ + 3e. B. Al3+ + 3e Al.C. 2O2- O2 + 4e. D. O2 + 4e 2O

2-.Cu 91: Nhn nh khng ng v qu trnh in phn sn xut Al l

A. cn tinh ch qung boxit (Al2O3.2H2O) do c ln tp cht l Fe2O3 v SiO2.B. t 1 tn boxit (cha 60% Al2O3) c th iu ch c gn 0,318 tn Al vi hiu sut 100%.

C. criolit c cho vo h nhit nng chy ca Al 2O3, tng dn in v ngn cn s oxi ho bi oxkhng kh.D. sn xut 2,7 tn Al tiu hao 18 tn C lm anot, nu cc qu trnh l hon ton v sn phm oxi ho ch lCO2.

Cu 92: Khi in phn nng chy sn xut Al, ngi ta ho tan Na3AlF6 vo A. gim nhit nng chy ca Al2O3 (2050

oC 950oC) do tit kim nng lng, tit kim nguyn liu Al2O3 vbt tiu hao C anot.B. gim nhit nng chy ca Al2O3 (2050

oC 950oC) do tit kim nng lng.C. tit kim nguyn liu Al2O3.D. bt tiu hao C anot.

Cu 93: Khi cho m gam Al tc dng vi dung dch NaOH d c x lt kh v khi cho m gam Al tc dng v

HNO3 long d c y lt kh N2 duy nht (cc th tch kh o cng iu kin). Quan h gia x v y lA. x = 5y. B. y =5x. C. x = y. D. x = 2,5y.Cu 94: Phn nhm c dng lm trong nc v:

A. Mi trng ca dung dch l axit (chua), nn trung ho cc baz.B. Khi ho long, kt ta Al(OH)3 c to ra, ko theo cc cht rn, bn l lng trong nc.C. Al2(SO4)3 l cht in li mnh, khi in li, ion Al

3+ kt hp vi cc cht bn, lng xung.D. Al2(SO4)3 phn ng trao i vi cc ion Mg

2+, Ca2+ c trong nc, to kt ta.Cu 95: Qung boxit cha Al2O3.2H2O thng c ln tp cht l Fe2O3 v SiO2. tinh ch qung, ngi ta lmnh sau: Cho qung tc dng vi NaOH c, d. Lc b cht rn khng tan c dung dch X. Sc CO2 vo dundch X c kt ta Y v dung dch Z. Nung kt ta Y nhit cao c Al2O3 tinh khit. S phn ng xy rtrong qui trnh trn l

A. 5. B. 6. C. 3. D. 4.Cu 96: Ngi ta sn xut nhm bng cch in phn Al2O3 nng chy m khng dng in phn AlCl3 vA. AlCl3 nng chy nhit cao hn Al2O3.B. Al2O3 cho ra Al tinh khit hn.C. S in phn AlCl3 nng chy to ra Cl2 c hi, cn Al2O3 to ra O2 khng c hi.D. AlCl3 l hp cht cng ho tr nn thng hoa khi nung.

Cu 97: Nhn nh no sau y khng ng v tnh cht ca Al2O3?A. Al2O3 c tnh bn vng v ion Al

3+ c in tch ln (3+) v bn knh ion nh nn lc ht gia ion Al3+ vion O2 rt mnh to ra lin kt Al2O3 rt bn vng.B. Al2O3 c tnh lng tnh v n va th hin tnh axit, va th hin tnh baz.C. Al2O3 c tnh lng tnh nn tan c trong nc to ra dung dch kim hoc dung dch axit.


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D. Do cu trc rt bn vng m Al2O3 c nhit nng chy rt cao v kh b kh thnh Al.Cu 98: Trong cc cht sau: Al(OH)3; Al2O3; NaHCO3; Al. S cht c tnh lng tnh l

A. 1. B. 2. C. 3. D. 4.Cu 99: Ch dng ho cht no sau y c th phn bit c 4 kim loi: Na, Al, Mg, Ag

A. dung dch NaOH. B. dung dch NH3. C. H2O. D. dung dch HCl.Cu 100: Dy cht no sau y gm cc cht u khng tan c trong nc nhng tan c trong dung dc

HCl hoc nc c ho tan CO2?A. MgCO3, Al2O3, CaCO3. B. MgCO3, CaCO3, Al(OH)3.C. MgCO3, BaCO3, CaCO3. D. Ba(HCO3)2, Ca(HCO3)2, MgCO3.

Cu 101: nhn bit 3 cht rn: Al2O3, MgO, CaCl2 c th dng nhm thuc th no sau y?A. H2O v H2SO4. B. H2O v NaOH. C. H2O v NaCl. D. H2O v HCl.

Cu 102: Cho cc th nghim sau:(1) Sc kh CO2 d vo dung dch natri aluminat.(2) Sc kh NH3 d vo dung dch AlCl3.(3) Nh t t n d dung dch HCl long vo dung dch natri aluminat.Nhng th nghim c hin tng ging nhau lA. (1) v (2). B. (1) v (3). C. (2) v (3). D. (1), (2) v (3).

Cu 103: Th nghim no sau y khi hon thnh khng c kt ta?A. Cho dung dch AlCl3 d vo dung dch NaOH.B. Cho Ba kim loi vo dung dch NH4HCO3.C. Cho dung dch NH4Cl vo dung dch natri aluminat.D. Cho dung dch HCl d vo dung dch natri aluminat.

Cu 104: t nng hn hp gm bt Al v bt Fe3O4 trong iu kin khng c khng kh. Sau khi phn ng xra hon ton thu c hn hp X. Cho hn hp X tc dng vi dung dch NaOH d thy c kh thot ra. Vtrong hn hp X c

A. Al, Fe, Fe3O4, Al2O3. B. Al, Fe, Al2O3.C. Al, Fe, Fe2O3, Al2O3. D. Al, Fe, FeO, Al2O3.

Cu 105: C 5 l ng 5 dung dch mt nhn: AlCl3, NaNO3, K2CO3, NH4NO3, (NH4)2SO4. Thuc th dng

nhn bit 5 dung dch trn lA. dung dch NaOH. B. dung dch Ba(OH)2. C. qu tm. D. dung dch AgNO3.Cu 106: Hin tng no sau y khi nh t t dung dch KOH vo ng nghim dung dch Al(NO3)3 n rt d?

A. kt ta xut hin, lng kt ta tng dn ri sau dn tan ht to dung dch khng mu.B. kt ta trng.C. kt ta trng xut hin v tan ngay to dung dch khng mu.D. khng c hin tng g xy ra.

Cu 107: Nh t t dung dch Al(NO3)3 vo ng nghim dng dung dch KOH, hin tng xy ra lA. kt ta trng xut hin, lng kt ta tng dn ri sau dn tan ht to dung dch khng mu.B. xut hin kt ta trng.C. khng c kt ta, ch c kh bay ln.

D. kt ta trng xut hin ri tan ht ngay to dung dch khng mu.Cu 108: Tch ring kim loi nhm ra khi hn hp gm Cu, Al, Mg , nn thc hin theo trnh t no sau y?A. Ngm hn hp trong ddch NaOH, thi CO2 vo dung dch, ly kt ta nung nng, in phn oxit nng chy.B. Ngm hn hp trong dd HCl, in phn dung dch.C. Ngm hn hp trong dd CuCl2, in phn dung dch.D. Cho hn hp tc dng vi oxi, in phn oxit nng chy.

Cu 109: sn xut nhm trong cng nghip, ta dng cch no sau yA. Dng kim loi natri y nhm ra khi oxit nhm nhit cao, hoc dng CO kh Al 2O3 nhit cao.B. Dng kim loi magie y nhm ra khi mui ca n trong dung dch.C. in phn Al2O3 nng chy.D. in phn AlCl3 nng chy.


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Cu 110: Trong cc pht biu sau:(1) Nhm kh d dng ion H+ ca dung dch axit, nh HCl v H2SO4 long, gii phng H2.(2) Nhng vt bng nhm hng ngy tip xc vi nc xy ra phn ng nhit thng.(3) Nhm khng tc dng vi H2SO4 v HNO3 c, ngui.(4) Nhm b th ng s khng tc dng vi cc dung dch HCl, H2SO4 long.S pht biu ng l

A. 4. B. 2. C. 3. D. 1.Cu 111: Khi cho hn hp gm a mol kali v b mol nhm ho tan trong nc, bit a > 4b. Kt qu l

A. kali v nhm u tan ht, thu c dung dch trong sut.B. kali v nhm u tan ht, trong bnh phn ng c kt ta trng keo.C. kali tan ht, nhm cn d, dung dch thu c trong sut.D. kali tan ht, nhm cn d, trong bnh phn ng c kt ta trng keo.

Cu 112: Khi sc t t kh CO2 lng d vo dung dch NaAlO2, thu c:A. Lc u c to kt ta (Al(OH)3), sau kt ta b ha tan (to Al(HCO3)3) v NaHCO3.B. C to kt ta (Al(OH)3), phn dung dch cha Na2CO3 v H2O.C. Khng c phn ng xy ra.D. Phn khng tan l Al(OH)3, phn dung dch gm NaHCO3 v H2O.

Cu 113: Cho mt lng bt kim loi nhm trong mt cc thy tinh, cho tip dung dch HNO 3 long vo cckhuy u cho phn ng hon ton, c cc kh NO, N 2O v N2 thot ra. By gi cho tip dung dch xt vo ckhuy u, c hn hp kh thot ra (khng k hi nc, khng kh). Hn hp kh ny c th l kh no?

A. NO2; NH3. B. NH3; H2. C. CO2; NH3. D. H2; N2.Cu 114: Phn chua c cng thc l

A. (NH4)2SO4.Al2(SO4)3.24H2O. B. Na2SO4.Al2(SO4)3.24H2O.C. K2SO4.Al2(SO4)3.24H2O. D. Li2SO4.Al2(SO4)3.24H2O.

Cu 115: Trong cc pht biu v sn xut Al c bao nhiu pht biu ng?(1) Trong cng nghip, nhm c sn xut t qung boxit bng phng php in phn.(2) Trong qung boxit, ngoi thnh phn chnh l Al2O3.2H2O cn c tp cht l SiO2 v Fe2O3. Bng phnphp ho hc, ngi ta loi b cc tp cht c Al2O3 nguyn cht.

(3) h nhit nng chy ca Al2O3 t 2050oC xung 900oC, ngi ta ho tan Al2O3 trong criol(Na3AlF6) nng chy. Vic lm ny mt mt mt tit kim nng lng ng thi to c cht lng c tndn in tt hn Al2O3 nng chy. Mt khc, hn hp cht in li ny c khi lng ring nh hn nhm, nln thng in phn c cc m (catot) v cc dng (anot) u l than ch.(4) cc m xy ra s oxi ho Al3+ thnh kim loi Al.(5) cc dng xy ra s kh cc ion O2 thnh kh O2.S pht biu ng lA. 4. B. 1. C. 2. D. 3.

Cu 116: Cho kh CO2 vo mt bnh kn cha Al(OH)3. Kt lun no sau y ng:A. C to Al2(CO3)3 lc u, sau vi CO2 d s thu c Al(HCO3)3.B. Lc u to Al2(CO3)3, nhng khng bn, n t phn hu to Al(OH)3 v CO2.

C. Khng c phn ng xy ra.D. C phn ng xy ra v to mui Al2(CO3)3.

Cu 117: Hin tng no sau y khi nh t t dung dch KOH vo ng nghim dung dch Al(NO3)3 n rt d?A. kt ta xut hin, lng kt ta tng dn ri sau dn tan ht to dung dch khng mu.B. kt ta trng.C. kt ta trng xut hin v tan ngay to dung dch khng mu.D. khng c hin tng g xy ra.

Cu 118: Trng hp no di y to ra kt ta sau khi phn ng xy ra hon ton?A. Cho dung dch HCl d vo dung dch NaAlO2 (hay Na[Al(OH)4]).B. Cho dung dch AlCl3 d vo dung dch NaOH.


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C. Cho dung dch NaOH d vo dung dch AlCl3.D. Sc CO2 d vo dung dch Ca(OH)2.

Cu 119: Trong cc pht biu sau:(1) nhit cao, Al kh c nhiu oxit kim loi nh Fe2O3, Cr2O3,... thnh kim loi t do.(2)Phn ng ca Al vi oxit kim loi gi l phn ng nhit nhm.(3)Nhng vt bng nhm b ho tan trong dung dch kim d NaOH, Ca(OH)2,

(4)Nhng axit H2SO4 c, ngui v HNO3 c, ngui oxi ho b mt kim loi Al to thnh mt mng oxc tnh tr, lm cho Al th ng.

S pht biu ng lA. 4. B. 1. C. 2. D. 3.

Cu 120: iu ch c 78 gam crom t Cr2O3 bng phng php nhit nhm, nu hiu sut ca phn ng ch l 90%th s gam bt nhm cn dng l:

A. 54 gam. B. 81 gam. C. 40,5 gam. D. 45,0 gam.Cu 121: Ha tan hon ton mt lng Al vo dung dch HNO3 long (d), ch thu c hn hp kh gm 0,015 mol khN2O v 0,01 mol kh NO. C cn dung dch sau phn ng thu c m gam mui khan. Gi tr ca m l

A. 16,5. B. 15,6. C. 5,16. D. 10,65.Cu 122: Trn 5,4 gam bt Al vi 4,8 gam bt Fe2O3 ri nung nng thc hin phn ng nhit nhm. Sau phn ng ho

ton, ly 1/2 hn hp rn thu c ho tan vo dung dch HCl d. Th tch kh H2 thu c iu kin tiu chun lA. 6,72 lt. B. 3,36 lt. C. 4,48 lt. D. 3,024 lt.

Cu 123: Cho 10,5 gam hn hp 2 kim loi gm Al v mt kim loi kim M vo trong nc. Sau phn ng thu c dundch X v 5,6 lt kh ( ktc). Cho t t dung dch HCl vo dung dch X thu c mt lng kt ta ln nht. Lc v ckt ta c 7,8 gam. Kim loi kim l

A. Li. B. Na. C. K. D. Rb.Cu 124: Cho 200 ml dung dch AlCl3 0,75M tc dng vi 800 ml dung dch NaOH 1M c dung dch Y. Cn phi chvo dung dch Y bao nhiu lt dung dch HCl 1M lng kt ta thu c l cc i?

A. 0,5 lt. B. 0,4 lt. C. 0,35 lt. D. 0,2 lt.Cu 125: Cho m gam hn hp gm Al, Al2O3 tan hon ton vo dung dch H2SO4 long thu c 6,72 lt kh(ktc) v 68,4g mui sunfat. Gi tr ca m l

A. 7,8. B. 15,6. C. 23,4. D. 12,9.Cu 126: Cho V lt dung dch NaOH 2M vo dung dch cha 0,1 mol Al2(SO4)3 v 0,1 mol H2SO4 n khi phn nhon ton, thu c 7,8 gam kt ta. Gi tr ln nht ca V thu c lng kt ta trn l

A. 0,05. B. 0,45. C. 0,25. D. 0,35.Cu 127: Cho hn hp gm Na v Al c t l s mol tng ng l 1 : 2 vo nc (d). Sau khi cc phn ng xy ra hoton, thu c 8,96 lt kh H2 ( ktc) v m gam cht rn khng tan. Gi tr ca m l

A. 5,4. B. 7,8. C. 10,8. D. 43,2.Cu 128: Cho 3,68 gam hn hp gm Al v Zn tc dng vi mt lng va dung dch H 2SO4 10% thu c 2,24 lkh H2 ( ktc). Khi lng dung dch thu c sau phn ng l

A. 101,48 gam. B. 101,68 gam. C. 97,80 gam. D. 88,20 gam.Cu 129: Ha tan m gam hn hp gm Al, Fe vo dung dch H2SO4 long (d). Sau khi cc phn ng xy ra hon ton

thu c dung dch X. Cho dung dch Ba(OH)2 (d) vo dung dch X, thu c kt ta Y. Nung Y trong khng kh khi lng khng i, thu c cht rn Z lA. hn hp gm Al2O3 v Fe2O3. B. hn hp gm BaSO4 v FeO.C. hn hp gm BaSO4 v Fe2O3. D. Fe2O3.

Cu 130: Hn hp X gm Na, Ba v Al.- Nu cho m gam hn hp X vo nc d ch thu c dung dch Y v 12,32 lt H2 (ktc).- Nu cho m gam hn hp X tc dng vi dung dch HCl d thu c dung dch Z v H2. C cn dung dch Zthu c 66,1 gam mui khan. Gi tr ca m lA. 36,56. B. 27,05. C. 24,68. D. 31,36.

Cu 131: Cho m gam Na vo 250 ml dung dch hn hp gm HCl 0,5M v AlCl 3 0,4M thu c (m 3,995) gamGi tr ca m l


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A.7,728 hoc 12,788. B.10,235. C. 7,728. D. 10,235 hoc 10,304 .Cu 132: Cho m gam Al tc dng vi m gam Cl2 (gi s hiu sut phn ng l 100%) sau phn ng thu c chrn X. Cho cht rn X tc dng vi dung dch HCl d thu c dung dch Y v 8,904 lt H 2 (ktc). C cn dundch Y thu c bao nhiu gam cht rn khan?

A. 56,7375 gam. B. 32,04 gam. C. 47,3925 gam. D. 75,828 gam.Cu 133: Cho m gam hn hp X gm Al, Fe2O3, Fe3O4, FeO tc dng vi dung dch HCl d thu c dung dc

Y trong khi lng ca FeCl2 l 31,75 gam v 8,064 lt H2 (ktc). C cn dung dch Y thu c 151,54 gamcht rn khan. Nu cho m gam hn hp X tc dng vi dung dch HNO 3 long d thu c dung dch Z v khNO (sn phm kh duy nht). C cn dung dch Z thu c bao nhiu gam mui khan?

A. 242,3 gam. B. 268,4 gam. C. 189,6 gam. D. 254,9 gam.Cu 134: Dung dch X gm AlCl3 a mol/l v Al2(SO4)3 b mol/l. Cho 400 ml dung dch X tc dng vi 612 mdung dch NaOH 1M thu c 8,424 gam kt ta. Mt khc nu cho 400 ml dung dch X tc dng vi dung dcBaCl2 d thu c 83,88 gam kt ta. T s a/b l

A. 2. B. 0,75. C. 1,75. D. 2,75.Cu 135: Cho m gam hn hp X gm Na v Al vo nc thu c dung dch X, 5,376 lt H 2 (ktc) v 3,51 gamcht rn khng tan. Nu oxi ha m gam X cn bao nhiu lt kh Cl2 (ktc)?

A. 9,968 lt. B. 8,624 lt. C. 9,520 lt. D. 9,744 lt.

Cu 136: Rt t t 200 gam dung dch NaOH 8% vo 150 gam dung dch AlCl3 10,68% thu c kt ta vdung dch X. Cho thm m gam dung dch HCl 18,25% vo dung dch X thu c 1,17 gam kt ta v dung dchY. Nng % ca NaCl trong dung dch Y l

A.6,403% hoc 6,830%. B. 5,608% hoc 6,830%.C. 5,608% hoc 8,645%. D. 6,403% hoc 8,645%.

Cu 137: Cho m gam Al tc dng vi dung dch HCl 18,25% va thu c dung dch X v kh H 2. Thm mgam Na vo dung dch X thu c 3,51 gam kt ta. Khi lng ca dung dch X l

A. 70,84 gam. B. 74,68 gam. C. 71,76 gam. D. 80,25 gam.Cu 138: Trn m gam dung dch AlCl3 13,35% vi m gam dung dch Al2(SO4)3 17,1% thu c 350 gam dundch Y trong s mol ion Cl bng 1,5 ln s mol SO4

2. Thm 81,515 gam Ba vo dung dch Y thu c banhiu gam kt ta?

A. 75,38 gam. B. 70,68 gam. C. 84,66 gam. D. 86,28 gam.Cu 139: Hn hp bt X gm Al v Fe2O3. Nu cho m gam hn hp X tc dng vi dung dch thu c 5,376 lH2 (ktc). Nu nung nng m gam hn hp X thc hin hon ton phn ng nhit nhm. thu c cht rn YHa tan ht cht rn Y vi dung dch NaOH d thu c 0,672 lt lt H2 (ktc). ha tan ht m gam hn hp Xcn bao nhiu ml dung dch hn hp HCl 1M v H2SO4 0,5M?

A. 300 ml. B. 450 ml. C. 360 ml. D.600 ml.Cu 140: Cho 38,775 gam hn hp bt Al v AlCl3 vo lng va dung dch NaOH thu c dung dch X(kt ta va tan ht) v 6,72 lt H2 (ktc). Thm 250 ml dung dch HCl vo dung dch X thu c 21,84 gam kta. Nng mol ca dung dch HCl l

A. 1,12M hoc 2,48M. B. 2,24M hoc 2,48M.C. 1,12M hoc 3,84M. D. 2,24M hoc 3,84M.

Cu 141: Cho m gam hn hp Al, Al2O3, Al(OH)3 tc dng vi dung dch H2SO4 19,6% va thu c dundch X c nng % l 21,302% v 3,36 lt H2 (ktc). C cn dung dch X thu c 80,37 gam mui khan. Gitr ca m l

A. 25,08. B. 28,98. C. 18,78. D. 24,18.Cu 142: Cho 7,872 gam hn hp X gm K v Na vo 200 ml dung dch Al(NO3)3 0,4M thu c 4,992 gam kta. Phn trm s mol K trong hn hp X l

A. 46,3725%. B. 48,4375%. C. 54,1250%. D. 40,3625% hoc 54,1250%.Cu 143: Cho 23,45 gam hn hp X gm Ba v K vo 125 ml dung dch AlCl3 1M thu c V lt kh H2 (ktcdung dch Y v 3,9 gam kt ta. Gi tr ca V l

A. 10,08. B. 3,92. C. 5,04. D. 6,72.


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Cu 157: Cho 200 ml gm MgCl2 0,3M; AlCl3 0,45M v HCl 0,55M tc dng hon ton vi V lt gm NaOH0,02M v Ba(OH)2 0,01M. Gi tr ca V c kt ta ln nht v lng kt ta nh nht l

A. 1,25 v 1,475. B. 1,25 v 14,75. C. 12,5 v 14,75. D. 12,5 v 1,475.Cu 158: Cho m gam hn hp gm Na2O v Al2O3 tc vo H2O d cho phn ng hon ton thu c 200 mdung dch X ch cha mt cht tan duy nht c nng 0,5M. Thi kh CO 2 d vo dung dch X c a gam kta. Gi tr ca m v a l

A. 8,2 gam v 78 gam. B. 8,2 gam v 7,8 gam. C. 82 gam v 7,8 gam. D. 82 gam v 78 gam.Cu 159: Ho tan 0,24 mol FeCl3 v 0,16 mol Al2(SO4)3 vo dung dch cha 0,4 mol H2SO4 c dung dch XCho dung dch cha 2,6 mol NaOH vo X c m gam kt ta. Gi tr ca m l

A. 15,6. B. 25,68. C. 41,28. D. 0,64.Cu 160: in phn Al2O3 nng chy trong thi gian 2 gi 40 pht 50 giy, cng dng in 5A, thu c 3,gam nhm kim loi catot. Hiu sut ca qu trnh in phn ny l

A. 80%. B. 90%. C.100%. D. 70%.Cu 161: Thc hin phn ng nhit nhm gia 6,48 gam Al vi 17,6 gam Fe 2O3. Ch c phn ng nhm kh oxkim loi to kim loi. em ha tan cht rn sau phn ng nhit nhm bng dung dch xt d cho n kt thphn ng, thu c 1,344 lt H2 (ktc). Hiu sut phn ng nhit nhm l

A. 100%. B. 90,9%. C. 83,3%. D. 70%.

Cu 162: Ha tan ht m gam bt kim loi nhm trong dung dch HNO3, thu c 13,44 lt (ktc) hn hp ba khNO, N2O v N2. T l th tch

2 2NO N O NV :V :V = 3 : 2 : 1. Gi tr ca m l

2 2NO N O NV :V :V

A. 32,4. B. 31,5. C. 40,5. D. 24,3.Cu 163: Cho 100 ml dung dch NaOH x mol/l vo dung dch cha 0,02 mol MgCl2 v 0,02 mol AlCl3. Lc lkt ta nung n khi lng khng i c m gam cht rn. m nh nht th x bng

A. 0,8. B. 1,0. C. 1,2. D. 0,6.Cu 164: Trn 0,81 gam Al vi 3,2 gam Fe2O3 ri thc hin phn ng nhit nhm thu c cht rn X. Cho Xtc dng vi dung dch NaOH d, thu c 0,672 lt kh (ktc). Hiu sut phn ng nhit nhm l

A. 75%. B. 50%. C. 40,5%. D. 33,33%.Cu 165: Dng m gam Al kh ht 1,6 gam Fe2O3. Sn phm sau phn ng cho tc dng ht vi dung dc

NaOH d c 0,672 lt kh (ktc). Gi tr ca m lA. 0,54. B. 1,08. C. 1,755. D. 0,81.Cu 166: Dung dch cha AlCl3 0,5M v HCl 0,2M. Cho 200 ml dung dch X tc dng vi V ml dung dcNaOH 0,8M. Khi phn ng khng c kt ta v c mui NaAlO2 th gi tr ca V l

A. 425. B. 325. C. 300. D. 550.Cu 167: Cho 6,48 gam bt kim loi Al vo 100 ml dung dch hn hp Fe2(SO4)3 1M v ZnSO4 0,8M. Sau khkt thc phn ng, thu c hn hp cc kim loi c khi lng m gam. Gi tr ca m l

A. 16,4. B. 14,5. C. 15,1. D. 12,8.Cu 168: Cho dung dch hn hp cha 0,2 mol NaAlO2 (hay Na[Al(OH)4]) v 0,2 mol NaOH tc dng vi V mdung dch HCl 1M, thu c 7,8 gam kt ta. Gi tr ca V l

A. 300 ml hoc 100 ml. B. 100 ml. B. 300 ml. D. 300 ml hoc 700 ml.

PHN IV: KIM LOI KIM, KIM LOI KIM TH, NHMTRONG CC THI H, C T NM 2007 N NAY

Cu 1 (H khi A - 2007):Nh t t cho n d dung dch NaOH vo dung dch AlCl3. Hin tng xy ra lA. c kt ta keo trng, sau kt ta tan. B. ch c kt ta keo trng.C. c kt ta keo trng v c kh bay ln. D. khng c kt ta, c kh bay ln.


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Cu 2 (H khi A - 2007): Cho t t dung dch cha a mol HCl vo dung dch cha b mol Na2CO3 ng thkhuy u, thu c V lt kh (ktc) v dung dch X. Khi cho d nc vi trong vo dung dch X thy xut hikt ta. Biu thc lin h gia V vi a v b l

A. V = 11,2(a - b). B. V = 22,4(a + b). C. V = 22,4(a - b). D. V = 11,2(a + b).Cu 3 (H khi A - 2007): Trn dung dch cha a mol AlCl3 vi dung dch cha b mol NaOH. thu c kt ta lnht th cn phi c t l

A. a : b = 1 : 4. B. a : b < 1 : 4. C. a : b = 1 : 5. D. a : b > 1 : 4.Cu 4 (H khi A - 2007): Hp th hon ton 2,688 lt kh CO2 ( ktc) vo 2,5 lt dung dch Ba(OH)2 a mol/l th thc 15,76 gam kt ta. Gi tr ca a l

A. 0,032. B. 0,048. C. 0,06. D. 0,04.Cu 5 (H khi A - 2007): Cho m gam hn hp gm Mg, Al vo 250 ml dung dch X cha hn hp axit HCl 1M vaxit H2SO4 0,5M, thu c 5,32 lt H2 ( ktc) v dung dch Y (coi th tch dung dch khng i). Dung dch Y c pH l

A. 1. B. 6. C. 7. D. 2.Cu 6 (C -2007): Khi cho 100 ml dung dch KOH 1M vo 100 ml dung dch HCl thu c dung dch c ch6,525 gam cht tan. Nng mol (hoc mol/l) ca HCl trong dung dch dng l

A. 0,75M. B. 1M. C. 0,25. D. 0,5M.Cu 7 (C - 2007): Phn ng ho hc xy ra trong trng hp no di y khng thuc loi phn ng nhi

nhm?A. Al tc dng vi Fe3O4 nung nng. B. Al tc dng vi CuO nung nng.C. Al tc dng vi Fe2O3 nung nng. D. Al tc dng vi axit H2SO4 c, nng.

Cu 8 (C - 2007): Trong cng nghip, natri hiroxit c sn xut bng phng phpA. in phn dung dch NaCl, khng c mng ngn in cc.B. in phn dung dch NaNO3, khng c mng ngn in cc.C. in phn dung dch NaCl, c mng ngn in cc.D. in phn nng chy NaCl.

Cu 9 (C - 2007): Cho mt mu kim loi Na-Ba tc dng vi nc (d), thu c dung dch X v 3,36 lt H 2 (ktc). Th tch dung dch H2SO4 2M cn dng trung ho dung dch X l

A. 150 ml. B. 75 ml. C. 60 ml. D. 30 ml.

Cu 10 (C - 2007): Thm m gam kali vo 300 ml dung dch cha Ba(OH)2 0,1M v NaOH 0,1M thu c dundch X. Cho t t dung dch X vo 200 ml dung dch Al2(SO4)3 0,1M thu c kt ta Y. thu c lng kta Y ln nht th gi tr ca m l

A. 1,59. B. 1,17. C. 1,71. D. 1,95.Cu 11 (C - 2007): C th dng NaOH ( th rn) lm kh cc cht kh

A. NH3, SO2, CO, Cl2. B. N2, NO2, CO2, CH4, H2.C. NH3, O2, N2, CH4, H2. D. N2, Cl2, O2, CO2, H2.

Cu 12 (C - 2007): Cho s phn ng: NaCl (X) NaHCO3 (Y) NaNO3. X v Y c th lA. NaOH v NaClO. B.Na2CO3 v NaClO.C. NaClO3 v Na2CO3. D. NaOH v Na2CO3.

Cu 13 (H khi B - 2007): Trong cc dung dch: HNO3, NaCl, Na2SO4, Ca(OH)2, KHSO4, Mg(NO3)2, dy gm c

cht u tc dng c vi dung dch Ba(HCO3)2 lA. HNO3, NaCl, Na2SO4. B. HNO3, Ca(OH)2, KHSO4, Na2SO4.C. NaCl, Na2SO4, Ca(OH)2. D. HNO3, Ca(OH)2, KHSO4, Mg(NO3)2.

Cu 14 (H khi B - 2007): Cho 200 ml dung dch AlCl3 1,5M tc dng vi V lt dung dch NaOH 0,5M, lnkt ta thu c l 15,6 gam. Gi tr ln nht ca V l

A. 1,2. B. 1,8. C. 2,4. D. 2,0.Cu 15 (H khi B - 2007): Cho 13,44 lt kh clo ( ktc) i qua 2,5 lt dung dch KOH 100 oC. Sau khi phng xy ra hon ton, thu c 37,25 gam KCl. Dung dch KOH trn c nng l

A. 0,24M. B. 0,48M. C. 0,4M. D. 0,2M.


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Cu 42 (C - 2009): Ho tan hon ton 8,862 gam hn hp gm Al v Mg vo dung dch HNO3 long, thu dung dch X v 3,136 lt ( ktc) hn hp Y gm hai kh khng mu, trong c mt kh ha nu trong khngkh. Khi lng ca Y l 5,18 gam. Cho dung dch NaOH (d) vo X v un nng, khng c kh mi khai thora. Phn trm khi lng ca Al trong hn hp ban u l

A. 19,53%. B. 12,80%. C. 10,52%. D. 15,25%.Cu 43 (C - 2009): Ho tan hon ton 47,4 gam phn chua KAl(SO4)2.12H2O vo nc, thu c dung dch X

Cho ton b X tc dng vi 200 ml dung dch Ba(OH)2 1M, sau phn ng thu c m gam kt ta. Gi tr ca ml

A. 7,8. B. 46,6. C. 54,4. D. 62,2.Cu 44 (C - 2009): Ch dng dung dch KOH phn bit c cc cht ring bit trong nhm no sau y?

A. Mg, Al2O3, Al. B. Mg, K, Na. C. Zn, Al2O3, Al. D. Fe, Al2O3, Mg.Cu 45 (H khi B - 2009): in phn nng chy Al2O3 vi anot than ch (hiu sut in phn 100%) thu c mkg Al catot v 67,2 m3 ( ktc) hn hp kh X c t khi so vi hiro bng 16. Ly 2,24 lt ( ktc) hn hp khX sc vo dung dch nc vi trong (d) thu c 2 gam kt ta. Gi tr ca m l

A. 108,0. B. 75,6. C. 54,0. D. 67,5.Cu 46 (H khi B - 2009): Khi nhit phn hon ton tng mui X, Y th u to ra s mol kh nh hn s momui tng ng. t mt lng nh tinh th Y trn n kh khng mu, thy ngn la c mu vng. Hai mui X

Y ln lt l:A. KMnO4, NaNO3. B. Cu(NO3)2, NaNO3. C. CaCO3, NaNO3. D. NaNO3, KNO3.

Cu 47 (H khi B - 2009): Nung nng m gam hn hp gm Al v Fe3O4 trong iu kin khng c khng khSau khi phn ng xy ra hon ton, thu c hn hp rn X. Cho X tc dng vi dung dch NaOH (d) thu dung dch Y, cht rn Z v 3,36 lt kh H2 ( ktc). Sc kh CO2 (d) vo dung dch Y, thu c 39 gam kt tAGi tr ca m l

A. 45,6. B. 48,3. C. 36,7. D. 57,0.Cu 48 (H khi B - 2009): Ho tan hon ton 2,9 gam hn hp gm kim loi M v oxit ca n vo nc, thc 500 ml dung dch cha mt cht tan c nng 0,04M v 0,224 lt kh H2 ( ktc). Kim loi M l

A. Na. B. Ca. C. Ba. D. K.Cu 49 (H khi B - 2009): Cho dung dch cha 6,03 gam hn hp gm hai mui NaX v NaY (X, Y l ha

nguyn t c trong t nhin, hai chu k lin tip thuc nhm VIIA, s hiu nguyn t Z X < ZY) vo dung dcAgNO3 (d), thu c 8,61 gam kt ta. Phn trm khi lng ca NaX trong hn hp ban u lA. 58,2%. B. 41,8%. C. 52,8%. D. 47,2%.

Cu 50 (H khi B - 2009): Thc hin cc th nghim sau:(I) Cho dung dch NaCl vo dung dch KOH.(II) Cho dung dch Na2CO3 vo dung dch Ca(OH)2.(III) in phn dung dch NaCl vi in cc tr, c mng ngn.(IV) Cho Cu(OH)2 vo dung dch NaNO3.(V) Sc kh NH3 vo dung dch Na2CO3.(VI) Cho dung dch Na2SO4 vo dung dch Ba(OH)2.Cc th nghim u iu ch c NaOH l:

A. II, III v VI. B. I, II v III. C. I, IV v V. D. II, V v VI.Cu 51 (H khi B - 2009): Th nghim no sau y c kt ta sau phn ng?A. Cho dung dch NaOH n d vo dung dch Cr(NO3)3.B. Cho dung dch NH3 n d vo dung dch AlCl3.C. Cho dung dch HCl n d vo dung dch NaAlO2 (hoc Na[Al(OH)4]).D. Thi CO2 n d vo dung dch Ca(OH)2.

Cu 52 (H khi A - 2010): Cho 7,1 gam hn hp gm mt kim loi kim X v mt kim loi kim th Y tc dnht vi lng d dung dch HCl long, thu c 5,6 lt kh (ktc). Kim loi X, Y l

A. kali v bari. B. liti v beri. C. natri v magie. D. kali v canxi.Cu 53 (H khi A - 2010): Pht biu no sau y ng?


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A. Theo chiu tng dn ca in tch ht nhn, cc kim loi kim th (t beri n bari) c nhit nng chgim dn.B. Kim loi xesi c dng ch to t bo quang in.C. Kim loi magie c kiu mng tinh th lp phng tm din.D. Cc kim loi: natri, bari, beri u tc dng vi nc nhit thng.

Cu 54 (H khi A - 2010): Ho tan hon ton 8,94 gam hn hp gm Na, K v Ba vo nc, thu c dung dc

X v 2,688 lt kh H2 (ktc). Dung dch Y gm HCl v H2SO4, t l mol tng ng l 4 : 1. Trung ho dung dch Xbi dung dch Y, tng khi lng cc mui c to ra l

A. 13,70 gam. B. 12,78 gam. C. 18,46 gam. D. 14,62 gam.Cu 55 (H khi A - 2010): Cho m gam NaOH vo 2 lt dung dch NaHCO3 nng a mol/l, thu c 2 lt dundch X. Ly 1 lt dung dch X tc dng vi dung dch BaCl 2 (d) thu c 11,82 gam kt ta. Mt khc, cho 1 ldung dch X vo dung dch CaCl2 (d) ri un nng, sau khi kt thc cc phn ng thu c 7,0 gam kt ta. Gitr ca a, m tng ng l

A. 0,08 v 4,8. B. 0,04 v 4,8. C. 0,14 v 2,4. D. 0,07 v 3,2.Cu 56 (H khi A - 2010): Cho dung dch X gm: 0,007 mol Na+; 0,003 mol Ca2+; 0,006 mol Cl; 0,006 mo

3HCO v 0,001 mol 3NO

. loi b ht Ca2+ trong X cn mt lng va dung dch cha a gam Ca(OH)

Gi tr ca a lA. 0,180. B. 0,120. C. 0,444. D. 0,222.

Cu 57 (H khi A - 2010): Nh t t tng git n ht 30 ml dung dch HCl 1M vo 100 ml dung dch chNa2CO3 0,2M v NaHCO3 0,2M, sau phn ng thu c s mol CO2 l

A. 0,020. B. 0,030. C. 0,015. D. 0,010.Cu 58 (C - 2010): Cho 1,56 gam hn hp gm Al v Al2O3 phn ng ht vi dung dch HCl (d), thu c V lt khH2 (ktc) v dung dch X. Nh t t dung dch NH3 n d vo dung dch X thu c kt ta, lc ht lng kt ta, nunn khi lng khng i thu c 2,04 gam cht rn. Gi tr ca V l

A. 0,448. B. 0,224. C. 1,344. D. 0,672.Cu 59 (C - 2010): Cho hn hp gm 6,72 gam Mg v 0,8 gam MgO tc dng ht vi lng d dung dch HNOS

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