500 Cau Trac Nghiem Hoa

8/2/2019 500 Cau Trac Nghiem Hoa

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1.Cho cc cht sau:(1) HO-CH2-CH2OH (2) HO-CH2-CH2-CH2OH (3) HOCH2-CHOH-CH2OH (4) C2H5-O-C2H5

(5) CH3CHO.Nhng cht tc dng c vi Na l:

A. 1, 2 v 3. B. 3, 5 v 2 C. 4, 5 v 3. D. 4, 1 v 3.2. un nng mt ru X vi H2SO4 m c nhit thch hp thu c mt olefin duy nht.Trong cc cng thc sau:

CH3-CH-CH3

OH

(1)

CH3-CH2-CH-CH3

OH

(2) CH3-C-CH2-OH

CH3

CH3

(4)

CH3-CH2-CH2-CH2-OH(3)

cng thc no ph hp vi X.?A. (1), (2), (3) B. (1), (2), (3), (4) C. (1), (2), (4) D. (1), (3), (4)

3.Nhng cht trong dy no sau y u tc dng c vi ru etylic ?

A. HCl ; HBr ; CH3COOH ; NaOH B. HBr ; CH3COOH ; Natri ; CH3OCH3.C. CH3COOH ; Natri ; HCl ; CaCO3. D. HCl ;HBr ;CH3COOH ; Natri.4.S ng phn ru c cng thc phn t C5H12O l:

A. 8 ng phn B. 5 ng phn C. 14 ng phn D. 12 ng phn5.S loi nc mt ng phn A ca C4H9OH cho hai olefin . ng phn A l...A. Ru iso butylic. B. Ru n-butylic. C. Ru sec butylic. D. Ru tert butylic.6.t chy hon ton 2 ru X, Y ng ng k tip nhau ngi ta thy t s mol CO 2 v H2O tngdn. Dy ng ng ca X, Y l:A. Ru no. B. Ru khng no C. Ru thm D. Phenol

6,5.Xt chui phn ng: Etanol 2 4 20170

,H SO Cl

CX Y Y c tn l

A. Etyl clorua. B. MetylClorua. C. 1,2- Dicloetan. D. 1,1- Dicloetan.7.t chy mt ru X, ta c hn hp sn phm chy trong

2 2CO H On C2H5OH > C6H5OH. B. CH3COOH > C6H5OH >C2H5OH. CC2H5OH > C6H5OH > CH3COOH. D. C6H5OH > CH3COOH > C2H5OH.9.Khi t chy cc ng ng ca mt loi ru th t l s mol

2 2CO H On n khng i khi s nguyn

t C trong ru tng dn. Kt lun no sau y chnh xc nht?A. l mt dy ng ng ru no n chc. B. l mt dy ng ng ru no

C. l mt dy ng ng ru khng no n chc. D. l mt dy ng ng ru khng noc mt ni i.

10.un nng t t hn hp etanol v propanol-2 vi xc tc l axit sunfuric c ta c th thu cti a bao nhiu sn phm hu c ch cha C, H, O ?A. 2. B. 3. C. 4. D. 5.


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11. S ng phn ca hp cht hu c c cng thc C4H10O l:A. 2 ng phn B. 4 ng phn C. 7 ng phn D. 9 ng phn

12.un nng mt ru M vi H2SO4 c 170oC thu c 1 anken duy nht. Cng thc tng qutng nht ca M l:A. CnH2n+1CH2OH. B. R-CH2OH. C. CnH2n+1OH. D. CnH2n-1CH2OH.13.Cho bit sn phm chnh ca phn ng kh nc caCH3-CH-CH-CH3

CH3OH A. 2-metylbuten-1 B. 3-metylbuten-1 C. 2-metylbuten-2 D. 3-metylbuten-214.t chy mt ru X ta thu c s mol CO2 > s mol H2O. X c th l ru no sau y?A. Ru no n chc B. Ru khng no c 1 lin kt pi.C. Ru khng no c 2 lin kt pi. D. Ruu no a chc.15.ng phn no ca C4H9OH khi tch nc s cho hai olefin ng phn?A. 2-metyl propanol-1 B. 2-metyl propanol-2 C. Butanol-1 D. Butanol-2

16. phn bit ru n chc vi ru a chc c t nht 2 nhm OH lin k nhau ngi ta dngthuc th l...A. dung dch Brom. B. dung dch thuc tm. C. dung dch AgNO3. D. Cu(OH)2.17.Trong dy ng ng ru no n chc, khi mch cacbon tng, ni chung:

A. Nhit si tng, kh nng tan trong nc gim B. Nhit si tng, kh nng tantrong nc tng

C. Nhit si gim, kh nng tan trong nc gim D. Nhit si gim, kh nng tantrong nc tng18.Mt ru no c cng thc thc nghim (C2H5O)n. Cng thc phn t ca ru l...

A. C2H5O. B. C4H10O2 . C. C6H15O3 . D. C8H20O4 .

19.Hp cht:CH3-CH-CH=CH2

CH3

L sn phm chnh (theo quy tc maccopnhicop) ca phn ng loi nc hp cht no sau y?A. 2-metylbutanol-3 B. 3-metylbutanol-2 C. 3-metylbutanol-1 D. 2-

metylbutanol-419.A l ng ng ca ru etylic c t khi hi so vi oxi bng 2,3125. S ng phn c mchcacbon khng phn nhnh ca A l...A. 1 B. 2 C. 3 D. 420.t chy 1,85 gam mt ru no n chc cn c 3,36 lit O2 (ktc). Cng thc ru l:

A. CH3OH B. C2H5OH C. C3H7OH D. C4H9OH21.Mt ru no, n chc, bc 1 b tch mt phn t nc to anken A. C 0,525 gam anken A tdng va vi 2g brm. Ru ny l...A. Butanol-1 B. Pentanol-1 C. Etanol D. Propanol-1


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22.Cho 18,8 gam hn hp 2 ru no, n chc, k tip nhau trong dy ng ng tc dng vi Nad thu c 5,6 lit H2 (ktc). Khi lng (g) mi ru l:

A. 9,6 v 9,2 B. 6,8 v 12,0 C. 10,2 v 8,6 D. 9,4 v 9,423.un nng hn hp hai ru mch h vi H2SO4 c ta c cc ete. Ly X l mt trong cc ete t chy hon ton c t l mol ca X, oxi cn dng , cacbonic v nc to ra ln lt l0,25: 1,375: 1:1. Cng thc 2 ru trn l...A. C2H5OH v CH3OH. B. C3H7OH v CH2= CHCH2OH.C. C2H5OH v CH2= CHOH. D. CH3OH v CH2 = CH CH2OH.24.un 1,66 gam 2 ru (H2SO4 c) thu c 2 anken l ng ng k tip nhau. t hn hp 2anken cn 1,956 lit O2 (25oC, 1,5 at). CTPT 2 ru l:A. C2H5OH, C3H7OH B. CH3OH, C2H5OH C. C2H5OH, C3H5OH D. C3h7OH, C4H9OH25.Cho 5,3g hn hp 2 ankanol ng ng lin tip tc dng vi natri d thu c 1,12 lt H 2(ktc). Cng thc phn t ca 2 ankanol trn l ...

A. CH3OH v C2H5OH. B. C2H5OH v C3H7OH. C. C3H7OH v C4H9OH. D. C4H9OH v C5H11OH.26.Cho 16,6 gam hn hp gm ru etylic v ru n-propylic phn ng ht vi Na d thu c3,36 lit H2 (ktc). % v khi lng cc ru trong hn hp l.A. 27,7% v 72,3% B. 60,2% v 39,8% C. 40% v 60% D. 32% v 68%27.X l mt ru no, a chc, mch h c s nhm OH nh hn 5. C 7,6 gam ru X phn nght vi Natri cho 2,24 lt kh (o ktc). Cng thc ho hc ca X l...A. C4H7(OH)3. B. C2H4(OH)2 C. C3H6(OH)2 D. C3H5(OH)3.28.un nng 1 hn hp gm 2 ru no n chc vi H2SO4 c 140oC thu c 21,6 gam nc v72 gam hn hp 3 ete. Bit 3 ete c s mol bng nhau (phn ng hon ton). CTPT 2 ru l:A. CH3OH v C2H5OH C2H5OH v C3H7OH C3H7OH v C4H9OH CH3OH v C3H7OH

29: Pht biu no sau y NG khi ni v phenol?A. Phenol c nhm OH trong phn t nn c tnh cht ho hc ging ru.B. Phenol c tnh axit nn phenol tan c trong dung dch kim.C.Tnh axit ca phenol mnh hn axit cacbonic v phenol tc dng vi CaCO 3 to kh CO2.D. Dung dch phenol trong nc cho mi trng axit, lm qu tm i mu sang .30.Chn cu ng: Phenol c th tc dng vi

A. HCl v Na B. Na v NaOH C. NaOH v HCl D. Na v Na2CO331.Cho cc cht c cng thc cu to :

CH2 OH

CH3

OH

OH

(1) (2) (3)Cht no thuc loi phenol?A. (1) v (2). B. (2) v (3). C. (1) v (3). D. C (1), (2) v (3).32.Khi cho Phenol tc dng vi nc brom, ta thy:A. Mt mu nu ca nc brom B. To kt ta gchC. To kt ta trng D. To kt ta xm bc


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33.Ha cht duy nht dng nhn bit 3 cht lng ng ring bit trong ba bnh mt nhn :phenol, stiren v ru etylic l...A. natri kim loi. B. qu tm. C. dung dch NaOH. D. dung dch brom.34.Phn ng no sau y chng minh phenol c tnh axit yu:A. C6H5ONa + CO2 + H2O B. C6H5ONa + Br2 C. C6H5OH + NaOH D. C6H5OH + Na35.Khi nh dung dch brom vo dung dch phenol lp tc thy xut hin kt ta trng l do...A. phenol cho phn ng cng vi brom d dng hn so vi benzen.B. phenol c tnh axit yu nn b brom y ra thnh cht khng tan trong dung dch.C. phenol d cho phn ng th vi brom cc v tr octo v para to cht khng tan.D. brom chim ly nc lm phenol tch ra thnh cht kt ta.36.Cho a (mol) hp cht hu c X c cng thc phn t C 7H8O2 tc dng vi natri d thu c a(mol) kh H2(ktc). Mt khc, a (mol)X ni trn tc dng va vi a (mol) Ba(OH)2. Trong phn tX c th cha:A.1 nhm cacboxyl COOH lin kt vi nhn thm. B. 1 nhm CH2OH v 1 nhm OH lin kt vi

nhn thm.C. 2 nhm OH lin kt trc tip vi nhn thm. D. 1 nhm OCH2OH lin kt vi nhn thm.

37.Dng phn ng ha hc no chng minh nguyn t hidro trong nhm hiroxyl ca phenollinh ng hn nguyn t hidro trong nhm hiroxyl ca ru etylic.A.C6H5OH+Na B.C6H5OH+Br2 C.C6H5OH + NaOH D.c C6H5OH+Na v C6H5OH+NaOH u c.38.Cho m(gam) phenol C6H5OH tc dng vi natri d thy thot ra 0,56 lt kh H2 (ktc). Khi lnm cn dng l...A. 4,7g. B. 9,4g. C. 7,4g. D. 4,9g.39.Cho nc brom d vo dung dch phenol thu c 6,62 gam kt t trng (phn ng hon ton)Khi lng phenol c trong dung dch l:

A. 1,88 gam B. 18,8 gam C. 37,6 gam D. 3,76 gam40.Cho 47 gam phenol tc dng vi hn hp gm 200 gam HNO3 68% v 250 gam H2SO4 96% to

axit picric (phn ng hon ton). Nng % HNO3 cn d sau khi tch kt t axit picric ra l:A. 10,85% B. 1,085% C. 5,425% D. 21,7%

41. Trong cc cht C2H6 , CH3-NH2 , CH3-Cl vCH 4 , cht c nhit si cao nht l...A. C2H6 B. CH3-NH2 C. CH3-Cl D. CH442.Trong cc amin sau:

CH3-CH-NH2

CH3

(1)(2) H2N-CH2-CH2-NH2

(3) CH3-CH2-CH2-NH-CH3

Amin bc 1 l::A. (1), (2) B. (1), (3) C. (2), (3) D. (2)

43.Ha cht c th dng phn bit phenol v anilin l ...A. dung dch Br2. B. H2O. C. dung dch HCl. D. Na.44.Kh nitrobenzen thnh anilin ta c th dng cc cht no trong cc cht sau:

(1) Kh H2; (2) mui FeSO4; (3) kh SO2; (4) Fe + HClA. (4) B. (1), (4) C. (1), (2) D. (2), (3)


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45.iu no sau y SAI?A. Cc amin u c tnh baz. B. Tnh baz ca cc amin u mnh hn NH3.C. Anilin c tnh baz rt yu. D. Amin ct nh baz do N cc p electron cha chia.46.Mt hp cht c CTPT C4H11N. S ng phn ng vi cng thc ny l:

A. 8 B. 7 C. 6 D. 548.C7H9N c sng phn ch a nhn thm l...A. 6. B. 5. C. 4. D. 3.49.Bn ng nghim ng cc hn hp sau:

(1) benzen + phenol(2) anilin + dd HCl d(3) anilin + dd NaOH(4) anilin + H2O

ng nghim no s s tch lp cc cht lng?A. (3), (4) B. (4) C. (1), (2), (3) D. (1), (4)

50.Cho cc cht: (1) amoniac. (2) metylamin. (3) anilin. (4) dimetylamin.Tnh baz tng dn theo th t no sau y?

A. (1) < (3) < (2) < (4). B. (3) < (1) < (2) < (4). C. (1) < (2) < (3) < (4). D. (3) < (1< (4) < (2)51.Cho cc cht: C6H5NH2, C6H5OH, CH3NH2, CH3COOH. Cht no lm i mu qu tm sang muxanh?

A. CH3NH2 B. C6H5NH2, CH3NH2C. C6H5OH, CH3NH2 D. C6H5OH, CH3COOH52.Khi cho metylamin v anilin ln lt tc dng vi HBr v dung dch FeCl 2 s thu c kt quno di y?A. C metylamin v anilin u tc dng vi c HBr v FeCl2.

B. Metylamin ch tc dng vi HBr cn anilin tc dng c vi c HBr v FeCl2.C. Metylamin tc dng c vi c HBr v FeCl2 cn anilin ch tc dng vi HBr.D. C metylamin v anilin u ch tc dng vi HBr m khng tc dng vi FeCl253.Cho nc brom d vo anilin thu c 16,5 gam kt ta. Gi s H = 100%. Khi lng anilitrong dung dch l:

A. 4,5 B. 9,30 C. 46,5 D. 4,5654.Mt amin A thuc cng dy ng ng vi metylamin c hm lng cacbon trong phn t bng68,97%. Cng thc phn t ca A l...A. C2H7N. B. C3H9N. C. C4H11N. D. C5H13N.55.Trung ha 50 ml dd metylamin cn 30 ml dung dch HCl 0,1M. Gi s th tch khng thay i.CM ca metylamin l:

A*. 0,06 B. 0,05 C. 0,04 D. 0,0156.t chy mt hn hp cc ng ng ca andehyt thu c n CO 2 = n H2O th l

dy ng ngA-Andehyt n chc no C- Andehyt hai chc noB- Andehyt n chc khng no D- Andehyt a chc no


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57.Cho cc cht: dd HBr, dd NH3 , dd Br2, CuO, Mg, C2H5OH. Axit no sau y u c phn ng vcc cht cho?a. Axit acrilic b. Axit fomic c. Axit axetic d. Axit stearic58.C4H8O c s ng phn andehyt l:

A- 1 B- 2 C- 3 D- 4

59.Axit no sau y kh tan trong nc nht?a. axit bezoic b. axit acrilic c. axit metacrilic d. axit propionic60.C 2 bnh mt nhn cha ru etylic 45o v dung dch fomalin. phn bit chng ta c thdng:

A- Na kim loi B- AgNO3/NH3C- Cu(OH)2 + to D- C B v C

61.Trong cc axit: axit propionic, axit axetic, axit fomic, axit acrilic. Hp cht c tnh axit yu nhtl a. axit propionic b. axit axetic c. axit fomic d. axit acrilic62.Andehit axetic tc dng c vi cc cht sau :

a. H2 , O2 (xt) , CuO, Ag2O / NH3, t0 .

b. H2 , O2 (xt) , Cu(OH)2 .c. Ag2O / NH3, t0 , H2 , HCl.d. Ag2O / NH3, t0 , CuO, NaOH.

63.Cho s chuyn ha: C2H5OH (A) (B) NaOH+ CH3CHO.Cng thc cu to ca (A) l a. CH3COOH b. CH3COOC2H5 c. CH3CHO d. C2H464.Trong phn ng vi H2 (Ni, t o) th andehit fomic l :

a. Cht oxi ho .b.Cht kh c .T oxi ha v t kh. d.Khng thay i s oxi ha.65.Cho s chuyn ha: C4H10 (X) (Y) CH4 (Z) (E). Xc nh cng thc cu to ca Xv E? Bit X l cht lng iu kin thng, E c kh nng phn ng vi NaOH v c phn ngtrng gng.

a. X: CH3COOH; E: HCOOH b. X: CH3COOH; E: HCOOCH3 c. X: C3H6; E: HCOOH d. X:C2H5OH; E: CH3CHO66.Cho s chuyn ho sau :

C2H

6xt xt xtA B CH3-CHO

A,B ln lt c th l cc cht sau :a. C2H4 , CH3-CH2-OH . b. C2H5-Cl , CH3-CH2-OH . c. C2H4 , C2H2 . d. C a

b u ng.67.t chy hon ton 7,2 gam mt axit cacboxilic khng no (phn t c cha 2 lin kt ) cndng 6,72 lt kh O2 (kc). Sn phm chy cho qua dung dch nc vi trong d th thy c 30 gamkt ta to thnh. Cng thc phn t ca axit l

a. C3H4O2. b.C3H4O4. c.C4H6O2. d.C4H6O4.

68. Mt andehit no n chc X, c t khi hi i vi khng kh bng 2. X c cng thc la. CH3-CHO . bCH3-CH2-CHO c .CH3-CHCH3-CHO .d.CH3-CH2-CH2-CHO .


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69.t chy hon ton 8,6 gam mt axit cacboxilic, sn phm chy cho hp th vo dung dchnc vi trong d, thy to thnh 40 gam kt ta v khi lng dung dch nc vi gim 17 gam.

Mt khc, khi cho cng lng axit tc dng vi dung dch Natri hidrocacbonat d th thu c2,24 lt kh CO2 (kc). Cng thc phn t ca axit l

a. C3H4O2. b.C3H4O4. c.C4H6O2. d.C4H6O4.70.Khi oxi ha 6,9 gam ru etylic bi CuO, t o thu c lng andehit axetic vi hiu sut 80 %l :

a. 6,6 gam b.8,25 gam c.5,28 gam d.3,68 gam71.Sn phm phn ng este ha ca axit cacboxilic no sau y c dng tng hp thu tnhhu c?

a. CH3COOH. b.CH2=CH-COOH. c.CH2=C(CH3)-COOH. d.CH3-CH(CH3)-COOH.72.C5H10O2 c s ng phn axit l:

A- 7 B- 6 C- 8 D- 4

73.Cho cc axit: (1): ClCH2-COOH, (2): CH3-COOH, (3): BrCH2-COOH , (4): Cl3C-COOH. Th ttng dn tnh axit l a. (4),(1),(3),(2). b.(2),(3),(1),(4). c.(1),(3),(4),(1). d.(4),(3),(2),(1).

74. Cho axit c cng thc sau :

C

2H

5CH

3

CH3-CH-CH

2-CH-COOH

Tn gi l :a. Axit 2,4-i metyl hecxanoic. b.Axit 3,5-imetyl hecxanoic. c.Axit 4-etyl-2-metyl

pentanoic.b. Axit 2-etyl-4-metyl pentanoic.

75.Trong cc cht sau, cht no c nhit si cao nht?a. CH3OCH3. b.C6H5OH. c.CH3COO d.H.CH3CH2OH.

76. iu ch axit axetic c th bng phn ng trc tip t cht sau :a. CH3-CH2-OH . b.CH3-CHO. c.HC CH d.C a,b u ng.

77.t chy a mol mt axit cacboxilic thu c x mol CO2 v y mol H2O. Bit x y= a. Cng thcchung ca axit cacboxilic l

a. CnH2n-2O3.CnH2nOz.CnH2n-2O2.CnH2n-2Oz.Axit metacrylic c kh nng phn ng vi cc cht sau :

a. Na, H2 , Br2 , CH3-COOH . b.H2, Br2 , NaOH, CH3-COOH . c.CH3-CH2-OH , Br2, Ag2O NH3, t0 .

b. Na, H2, Br2, HCl , NaOH.78.Mt axit cacboxilic no c cng thc thc nghim (C2H3O2)n. Cng thc phn t ca axit l

C6H9O6. b.C4H6O4. c.C8H12O8. d.C2H3O279.Axit propyonic v axit acrylic u c tnh cht v c im ging nhau l :

a. ng ng , c tnh axit, tc dng c vi dung dch brom.b. ng phn, c tnh axit, tc dng c vi dung dch brom.c. Ch c tnh axit.d. C tnh axit v khng tc dng vi dung dch brom


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80.t chy hon ton a mol axit cacboxilic (X) thu c 2a mol CO 2. Mt khc trung ha amol (Xcn 2a mol NaOH. (X) l axit cacboxilic

a. khng no c mt ni i C=C.n chc no.oxalic.Axetic.81.Khi cho axit axetic tc dng vi cc cht: KOH ,CaO, Mg, Cu, H 2O, Na2CO3, Na2SO4, C2H5OH, th

s phn ng xy ra l:A.5 B.6 C.7 D.8

82.Cho 3,38 gam hn hp Y gm CH3COOH, CH3OH, C6H5OH tc dng va vi Na, thu c 672ml kh (kc) v dung dch. C cn dung dch thu c hn hp mui khan Y 1. Khi lng mui Y1 l

a. 4,7 gam.3,61 gam.4,78 gam.3,87 gam.83. Cht no phn bit c axit propionic v axit acrylic

A. Dung dch NaOH B. Dung dch Br2 C. C2H5OH D. Dung dch HBr84.t chy hon ton 0,1 mol mui natri ca mt axit hu c, thu c 0,15 mol CO 2, hi nc vNa2CO3. Cng thc cu to ca mui l

a. HCOONa.CH3COONa.C2H5COONa.CH3CH2CH2COONa.85.C th phn bit CH3CHO v C2H5OH bng phn ng vi :A. Na B. AgNO3/NH3 C. Cu(OH)2\NaOH D. C A,B,C u ng

86.iu kin ca phn ng axetien hp nc to thnh CH3CHO l a. KOH/C2H5OH.Al2O3/t0.dd HgSO4/800C.AlCl3/t0.

87.Sp xp th t tnh axit tng dn ca cc axit :ClCH2COOH ; BrCH2COOH ; ICH2COOH

A. ClCH2COOH < ICH2COOH < BrCH2COOH B. ClCH2COOH < BrCH2COOH Trong cng 1 chu k, kim lo i kim cob n knh ln nht.2> Kim loi kim cZ nhnh t so vi cc nguyn tthu c cng chu k.

3> Chc n mt 1 in tlkim lo i kim t n cu hnh khtr.4> Kim loi kim lkim lo i nhnh t.Chn pht biu ng.a> Chc1, 2 b> Chc1, 2, 3 c> Chc3 d> Chc3, 4315.Hirua ca kim loi kim tc dng vi nc to thnh :

a. Mui v nc b. Kim v oxi c. Kim v hiro d. Mui316.i u chNa 2CO3 ngi ta cthd ng phng php no sau ya> Cho sc khCO 2 d qua dd NaOH. b> To NaHCO3 kt ta tCO 2 + NH3 + NaCl vsau nhit phn NaHCO3c> Cho dd (NH4)2SO4 tc dng vi dd NaCl. d> Cho BaCO3 tc dng vi dd NaCl317.Cho 2,3g Na tc dng vi 180g H2O. C% dung dch thu c :A. 4% B. 2,195% C. 3% D. 6%Kim loi kim c iu chtrong cng nghi p theo phng php no sau y?a> Nhit luyn b> Thy luync> in phn nng chy d> in phn dung dch318.Cho 6,2g Na2O vo 100g dung dch NaOH 4%. C% thu c:A. 11,3% B. 12% C. 12,2% D. 13%319.i u chK kim lo i ngi ta cthd ng cc phng php sau:1> in phn dung dch KCl cv ch ngn xp.2> in phn KCl nng chy.3> Dng Li khK ra kh i dd KCl4> Dng CO khK ra kh i K2O5> in phn nng chy KOH

Chn phng php thch hpa> Chc1, 2 b> Chc2, 5 c> Chc3, 4, 5 d> 1, 2, 3, 4,5.

320.Cho 2,3g Na tc dng mg H2O thu c dung dch 4%. Khi lng H2O cn:A. 120g B. 110g C. 210g D. 97,8g321.Cho dd cha 0,3 mol KOH tc dng vi 0,2 mol CO2. Dung dch sau phn ng gm cc chta> KOH, K2CO3 b> KHCO3 c> K2CO3 d > KHCO3, K2CO3


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322.Cho 22g CO2 vo 300g dung dch KOH thu c 1,38g K2CO3. C% dung dch KOH:A. 10,2% B. 10% C. 9% D. 9,52%323.Cho m g hn hp Na, K tc dng 100g H2O thu c 100ml dung dch c pH = 14; nNa : nK = : 4. m c gi tr:A. 3,5g B. 3,58g C. 4g D. 4,6g324.Hn hp X gm 2 kim loi kim A, B thuc 2 chu kkti p ca BTH. Ly 3,1 (g) X ha tanhon ton vo nc thu c 1,12 lt H2 (ktc). A, B l2 kim lo i:a> Li, Na b> Na, K c> K, Rb d> Rb, Cs325.4,41g hn hp KNO3, NaNO3; t l mol 1 : 4. Nhit phn hon ton thu c kh c s mol:

A. 0,025 B. 0,0275 C. 0,3 D. 0,315326.Mt hn hp nng 14,3 (g) gm K vZn tan h t trong nc d cho ra dung dch chch a chduy nht lmu i. Xc nh khi lng mi kim loi trong hn hp vtht ch khH 2 thot ra (ktc)a> 3,9 g K, 10,4 g Zn, 2,24 (l) H2 b> 7,8 g K, 6,5 g Zn, 2,24 (l) H2c> 7,8 g K, 6,5g Zn, 4,48 (l) H2 d> 7,8 g K, 6,5 g Zn, 1,12 (l) H2327.Cho 1,5g hn hp Na v kim loi kim A tc dng vi H2O thu c 1,12 lt H2 (ktc). A l:A. Li B. Na C. K D. Rb328.Khi un nng, Canxiccbonnt phn hy theo phng trnh:

CaCO3 CaO + CO2 178 Kj thu c nhiu CaO ta phi :

a. h thp nhit nung . Qut l t ui ht CO2 c. tng nhit nung d

C b v c u ng329.Theo chiu tng dn in tch ht nhn cc kim loi thuc phn nhm chnh nhm II c:A. Bn knh nguyn t tng dn . Nng lng ion ha gim dn. Tnh kh ca nguyn t

tng dn.B. Tnh oxi ha ca ion tng dn. Hy chn p n sai:

330.Nguyn t ca mt nguyn t R c lp ngoi cng l lp M , trn lp M c cha 2e. Cu hnhin t ca R, tnh cht ca R l:

a. 1s22s22p63s2, R l kim loi. b. 1s22s22p63s23p6, R l kh him.c. 1s22s22p43s23p2, R l phi kim d. 1s22s22p63s2, R l phi kim.

331.Theo chiu tng dn ca in tch ht nhn cc nguyn t kim loi thuc PNC nhm II c :A. Tnh kim loi cc nguyn t tng dn. B. Tnh baz ca cc hidroxit tng dn. C. Tnh

baz ca cc hidroxit gim dn. D. Tnh axit ca cc hidroxitgim dn.332.Nguyn t X c cu hnh e l: 1s22s22p63s23p64s2 th Ion to ra t X s c cu hnh e nh sau

a.1s22s22p63s23p64s2 b. 1s22s22p63s23p6 c. 1s22s22p63s23p64s24p6 d.1s22s22p63s2

333.Phng php iu ch kim loi phn nhm chnh nhm II l :A. Phng php thy luyn. B.Phng php thy luyn. , C.Phng php in phn nng

chy.D. Tt c cc phng php trn. Hy chn phng php ng:

334. lm mm nc cng tm thi, c th dng phng php sau:a. Cho tc dng vi NaCl b. Tc dng vi Ca(OH)2 va c. un nng nc d

B v C u ng.335.Kim loi PNC nhm II tc dng vi dung dch HNO3 long , theo phng trnh ha hc sau 4M

+ 10 HNO3 4 M(NO3)2 + NxOy + 5 H2O . Oxit no ph hp vi cng thc phn t caNXOYA. N2O B.NO C.NO2 D.N2O4

336. st trng, ty u tp xung quanh khu vc b nhim, ngi ta thng ri ln nhngcht bt mu trng l cht g ?

a. Ca(OH)2 b. CaO c. CaCO3 d.CaOCl2337. Trong PNC nhm II (tr Radi ) Bari l :

A.Kim loi hot ng mnh nht.B. Cht kh mnh nht.C. Baz ca n mnh nht.D. Baz ca n yu nht.


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Hy ch ra cu sai :338.Thng thng khi b gy tay chn ngi ta phi b bt li vy h dng ho cht no ?

a. CaSO4 b. CaSO4.2H2O c.2CaSO4.H2O d.CaCO3339.Kim loi kim th phn ng mnh vi : 1.Nc ; 2.Halogen ; 3. Sili oxit ; 4.Axit ; 5.Ru; 6.Dung dch mui ; 7.D dng ct gt bng dao ; 8. dng tinh khit c mu xanh lam.

Nhng tnh cht no sai?A. 2,4,6,7 B.3,6,7,8C.1,2,4,8 D.2,5,6

340.Phn ng no sau y: Chng minh ngun gc to thnh thch nh trong hang ng.

a. Ca(OH)2 + CO2 Ca(HCO3)2 b. Ca(HCO3)2 CaCO3 + CO2 + H2Oc. CaCO3 + CO2 + H2O Ca(HCO3)2 d. Ca(OH)2 + CO2 CaCO3

341.Kim loi kim th tc dng c vi :A. Cl2 , Ar ,CuSO4 , NaOH B. H2SO4 , CuCl2 , CCl4 , Br2. C. Halogen, H2O , H2 , O2 ,

Axit , Ru.D.Kim , mui , oxit v kim loi. Hy chn dp n ng?

342.Trong mt cc nc c cha 0,01mol Na+, 0,02mol Ca2+, 0,01mol Mg2+, 0,05mol HCO3-, 0,02mol Cl-, nc trong cc l:

a. Nc mm b. Nc cng tm thic. Nc cng vnh cu d. Nc cngton phn343.Khng gp kim loi kim th trong t nhin dng t do v:

A.Thnh phn ca chng trong thin nhin rt nh. B.y l kim loi hot ng hahc rt mnh.C.y l nhng cht ht m c bit. D.y l nhng kim loi iu ch bng chc in

phn.Hy chn p n ng?

344.C 4 dd trong 4 l mt nhn l: AmoniSunpht, Amoni Clorua, NattriSunphat, NatriHiroxit.Nu ch c php dng mt thuc th nhn bit 4 cht lng trn ta c th dng thuc th nosau y:

a. DD AgNO3 b. DD Ba(OH)2 c. DD KOH d. DD BaCl2345.Ch dng thm mt ha cht hy nhn bit cc kim loi Cu, Be, Mg trong cc bnh mt nhn :

A. H2O B.HCl C. NaOH D.AgNO3 Hy chn pn ng?346.olomit l tn gi ca hn hp no sau y.

a. CaCO3. MgCl2 b. CaCO3. MgCO3 c. MgCO3. CaCl2 d. MgCO3.Ca(HCO3)2347.Ch dng mt ha cht no sau y nhn bit cc kim loi Ba, Mg, Fe, Ag, Al trong cc bnhmt nhn:

A. H2SO4long B.HCl C. H2O D. NaOH348.Mun iu ch kim loi kim th ngi ta dng phng php g ?

a. in phn dd b. Thu luyn c. in phn nng chy d.Nhit luyn349.C cc cht sau : NaCl, Ca(OH)2 ,Na2CO3, HCl . Cp cht no c th lm mm nc cng tmthi :

A. NaCl v Ca (OH)2 B. Ca(OH)2 v Na2CO3C.Na2CO3 v HCl D. NaCl v HCl

350.Mt hn hp rn gm: Canxi v CanxiCacbua. Cho hn hp ny tc dng vi nc d ngui tathu uc hn hp kh g ?a. Kh H2 b. Kh C2H2 v H2 c. Kh H2 v CH2 d. Kh H2 v CH4

351.Nc cng l nc :A. C cha mui NaCl v MgCl2 B.C cha mui ca kali v st. C.C cha mui ca

canxi v ca magie.D.C cha mui ca canxi magie v st. Hy chn p n ng?

352.Cho 3 dd NaOH, HCl, H2SO4. Thuc th duy nht phn bit 3 dd l:a. CaCO3 b. Na2CO3 c. Al d. Qu tm

353.Cho dd cha cc Ion sau: Na+, Ca2+,Ba2+ , H+, Cl-. Mun tch c nhiu Kation ra khi dd mkhng a Ion l vo dd, ta c th cho dd tc dng vi cht no trong cc cht sau:

a. DD K2CO3 va b. DD Na2SO4 va c. DD NaOH va


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d. DD Na2CO3 va 354.C th loi tr cng tm thi ca nc bng cch un si v :

A. Nc si nhit cao hn 1000 C.B.Khi un si ui ra khi nc tt c nhng cht kh ha tan.C. Cc cation canxi v magie b kt ta di dng cc hp cht khng tan.D. Tt c u ng . Hy chn p n ng?

355.Ho tan Ca(HCO3)2, NaHCO3 vo H2O ta c dd A. Cho bit dd A c gi tr pH nh th no ?a. pH = 7 b. pH < 7 c. pH > 7 d. Khng xc nh c

356.C th loi tr cng vnh cu ca nc bng cch:

A. un si nc. B.Ch ha nc bng nc vi. C.Thm axit cacbonic. D.Cho vonc : x a, photphat, v nhng cht khc Chn p n ng?357.Cho s chuyn ho: CaCO3 A B C CaCO3A, B, C l nhng cht no sau y:

1. Ca(OH)2 2. Ba(HCO3)2 3. KHCO3 4. K2CO3 5. CaCl2 6. CO2a. 2, 3, 5 b. 1, 3, 4 c. 2, 3, 6 d. 6, 2, 4

358.C 4 l mt nhn ng ring bit cc mui: NaCl, Na2CO3, Na2SO4, NaNO3 . nhn bit ccmui trn ta c th dng trc tip nhm thuc th no sau y:

A. BaCl2, HNO3, KOH, v nc. B. BaCl2 , HCl, AgNO3, v nc . C. BaCl2, H2SO4,NaOH v nc.

D. Ba(OH)2, HCl, NaOH, v nc.

359.Nu quy nh rng 2 Ion gy ra phn ng trao i hay trung ho l mt cp Ion i khng thtp hp cc Ion no sau y c cha Ion i khng vi Ion OH -

a. Ca2+, K+, SO42-, Cl- b. Ca2+, Ba2+, Cl- c. HCO3-, HSO3-, Ca2+, Ba2+

d. Ba2+, Na+, NO3-

360.C 4 l mt nhn cha ln lt cc cht : NaCl, CuCl2, MgCO3, BaCO3. nhn bit ngi ta cth tin hnh:

A. Dng nc ha tan xc nh c 2 nhm, nung nng tng nhm v ha tan sn phm sakhi nung.

B. Dng nc ha tan xc dnh c 2 nhm, in phn nhm tan, nung nng nhm khngtan sau cho sn phm vo nc.

C. Nung nng s c 2 cht bay hi v 2 cht b nhit phn ha tan tng nhm trong nc.D. C A v C u ng.

Hy chn p n ng?361.C 4 dd trong sut, mi dd ch cha mt loi Kation v mt loi Anion. Cc loi Ion trong c 4dd gm: Ba2+, Mg2+, Pb2+, Na+, SO42-, Cl-, NO3-. l dd g ?

a. BaCl2, MgSO4, Na2CO3, Pb(NO3)2 b. BaCO3, MgSO4, NaCl, Pb(NO3)2c. BaCl2, Mg(NO3)2, Na2CO3, PbSO4 d. BaSO4, MgCl2, Na2CO3, Pb(NO3)2

362.C 4 cht ng 4 l ring bit gm : Na2CO3, CaCO3, Na2SO4, CaSO4.2 H2O. nhn bit tngcht ngi ta c th dng :

A.NaOH v H2O B. HCl v H2O C.NaCl v HCl D. Tt c u ng.Hy chn p n ng?

363.Dnh cho c cu 20. Trong cc nc cha a mol Ca 2+, b mol Mg2+, c mol Cl- v d mol HCO3-.

Biu thc lin h gia a, b, c, d l:a. a + b = c + d b. 3a + 3b = c + d c. 2a + 2b = c + d d. Kt qu khc364.Canxi c trong thnh phn ca cc khong cht : Canxit, thch cao, florit. Cng thc ca cckhong cht tng ng l:

A. CaCO3, CaSO4, Ca3(PO4)2 B.CaCO3, CaSO4.2H2O, CaF2 C.CaSO4, CaCO3, Ca3(PO4)2D. CaCl2, Ca(HCO3)2, CaSO4

365.Nu ch dng nc vi trong nng p mol/l lm gim cng ca nc trong cc thngi ta thy khi cho v lit nc vi trong vo, cng trong bnh l b nht, bit c = 0. Biu thclin h gia a, b v p l :

a. V= (b + a)/p b V= (2a+p)/p c. V=(3a+2b)/2pd. V=(2b+a)/p

366.Dng phng php cationit loi tr tnh cng ca nc theo s :


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A. Ca + KA CaKAB.Mg + Na2R 2Na + MgRC.Mg2+ + Ca2+ + 2Na2R MgR + CaR + 4NaD.Mg2+ + Ca2+ + 2CO32- MgCO3 + CaCO3

Chn p n ng:367.C 4 cc ng ring bit cc cht sau : Nc nguyn cht , nc cng tm thi , nc cngvnh cu, nc cng ton phn.C th phn bit tng loi nc trn bng cch.

A. un nng, lc, dng Na2CO3. B.un nng , lc, dng NaOH. C.un nng , lc , dng

Ca(OH)2D.C B v C u ng.

368.A,B l cc kim loi hot ng ho tr II, ho tan hn hp gm 23,5g mui cacbonat ca A v8,4g mui cacbonat ca B bng dung dch HCl d, sau c cn v in phn nng chy hon tocc mu th thu c 11,8 gam hn hp kim loi catot v V lt kh anot. Bit khi lng nguynt ca A bng khi lng oxit ca B. Hai kim loi A v B l:

A. Mg v Ca B. Be v Mg C. Sr v Ba D. Ba v Ra369.Cho dung dch cha cc ion sau : Na+, Ca2+, Mg2+, Ba2+, H+, Cl-. Mun tch c nhiu cation rkhi dung dch m khng a ion l vo dung dch , ta c th cho dung dch tc dng vi cht notrong cc cht sau:

A.Dung dch K2CO3 va . B. Dung dch Na2SO4 va

C. Dung dch NaOH va . D. Dung dch Na2CO3 va .370.Ho tan 1,7 gam hn hp kim loi A v Zn vo dung dch HCl thu c 0,672 lt kh iukin tiu chun v dung dch B. Mt khc ho tan 1,9 gam kim loi A th cn khng ht 200mldung dch HCl 0,5M. M thuc phn nhm chnh nhm II. Kim loi M l:

A. Ca B. Cu C. Mg D. Sr371.Ngi ta in phn mui clorua ca mt kim loi ha tr II trng thi nng chy sau mt thgian catt 8 gam kim loi , anot 4,48 lit kh (ktc) .Cng thc no sau y l cng thc camui.

A. MgCl2 B. CaCl2 C. CuCl2 D. BaCl2372.Mt hn hp X gm 2 kim loi A, B u c ho tr 2 v c khi lng nguyn t M A < MB. Nucho 10,4g hn hp X ( c s mol bng nhau) tc dng vi HNO 3 c, d thu c 12 lt NO2.Nu

cho 12,8 gam hn hp X ( c khi lng bng nhau) tc dng vi HNO 3 c, d thu c 11,648 lNO2( ktc). Tm hai kim loi Av B?

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

373.Trong 100 ml dung dch BaCl2 c 0,2 M .C:A. 0,2 phn t gam BaCl2. B. 0,02 phn t gam BaCl2. C. 0,02 ion gam Ba2+ v 0,04 ion

gam Cl- .D.0,02 ion gam Ba2+ v 0,02 ion gam Cl-.

Chn p n ng?374.Hn hp X gm hai mui clorua ca hai kim loi ho tr II.

in phn nng chy ht 15,05 gam hn hp X thu c 3,36 lt khi (o ktc) anot v m gam

kim loi catnot. khi lng m l:A.2,2 gam B.4,4gam C.3,4 gam D. 6gam

375.Hn hp X gm 2 mui clorua ca 2 kim loi ha tr II . in phn nng chy ht 15,05 gamhn hp X thu c 3,36 lit kh (ktc) anot v m gam kim loi catot.Khi lng m l:

A.2,2 gam B. 4,4 gam C. 3,4 gam D. 6 gam376.Ho tan 2,84 gam hn hp 2 mui cacbonat ca hai kim loi A v B k tip nhau trong phnnhm chnh II bng 120ml dung dch HCl 0,5M tu c 0,896 lt CO2(o 54,6oCv 0,9atm) vdung dch X.

Khi lng nguyn t ca Av B l:

A.9 vc v 24 vc B.87 vc v 137 vc C.24 vc v 40 vc D.Kt qu khc


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377.Ha tan 3,23 gam hn hp mui CuCl2 v Cu(NO3)2 vo nc c dung dch A .Nhng vodung dch mt thanh Mg , trong mt thi gian n khi mu xanh ca dung dch bin mt .Lythanh Mg ra em cn li thy tng thm 0,8 gam. C cn dung dch th thu c m gam muikhan.Gi tr ca m l:

A. 1,15 g B. 1,23 g C. 2,43 g D.4,03 g378.Ho tan 4 gam hn hp gm Fe v mt kim loi ha tr IIvo dung dch HCl th thu c 2,24lt kh H2(o ktc). Nu ch dng 2,4 gam kim loi ho tr II cho vo dung dch HCl th dng khnht 500ml dung dch HCl 1M.Kim loi ho tr II l:

A.Ca B.Mg C.Ba D.Sr379.Cho 2,86 g hn hp gm MgO v CaO tan va trong 200 ml dung dch H 2SO4 0,2 M . Saukhi nung nng khi lng hn hp mui sunphat khan to ra l :

A. 5,72 g B. 5,66 g C. 5,96 g D. 6,06 g380.Ho tan 28,4 gam mt hn hp gm hai mui cacbonat ca hai kim loi ho tr II bng dungdch HOL d thu c 10 lt 54,6oC v 0,8064 atm v mt dung dch X.

a) Khi lng hai mui ca dung dch X l:

A. 30 gam B. 31 gam C.31,7 gam D.41,7 gam

b) Nu hai kim loi thuc hai chu k lin tip ca phn mhm chnh nhm II th hai kim loi l:

a.Be v Mg B.Mg v Ca C.Ca v Sr D.Ba v Ra

381.Ha tan 1,8 g mui sunphat ca kim loi PNC nhm II vo nc cho 100 ml dung dch . phn ng ht dung dch ny cn 10 ml dung dch BaCl2 1,5 M . Nng mol ca dung dch muisunphat cn pha ch v cng thc ca mui l :

A.0,15 M v BeSO4 B. 0,15 M v MgSO4C. 0,3 M v MgSO4 D. 0,3 M v BaSO4

382.Nhng thanh kim loi X ho tr II vo dung dch CuSO4.Sau mt thi gian ly thanh kim loi rathy khi lng gim 0,05%.mt khc cng ly thanh kim loi nh trn nhng vo dung dchPb(NO3)2 th khi lng tng ln 7,1%.Bit s mol CuSO4v Pb(NO3)2 tham gia hai trng hpbng nhau. Kim loi X l:

A.Zn B.Al C.Fe D.Cu383.Ha tan hon ton 1,44 g mt kim loi ha tr II bng 250 ml H 2SO4 O,3 M(long) .Mun trunha axit d trong dung dch sau phn ng phi dng 60 ml dung dch NaOH 0,5 M . Kim loi l:

A.Be B.Ca C. Ba D.Mg384.Cho cc dung dch mui: K2SO4, BaCl2, Na2CO3, AlCl3. Dung dch lm cho giy qu tm ho l

A. K2SO4, BaCl2. Na2CO3. AlCl3. Na2CO3, AlCl3.385.Al2O3 tan c trong:

a Tt c u ng b dd NaOH c dd HCl d dd HNO3(c nng)Sc kh CO2 n d vo dung dch NaAlO2. Hin tng xy ra l

A. Dung dch vn trong sut, khng c hin tng g.

B. Ban u c kt ta, sau kt ta tan to dung dch trong sut.C. C kt ta trng to thnh, kt ta khng tan khi CO2 d.D. Ban u dung dch vn trong sut, sau mi c kt ta trng.

.386. S electron lp ngoi cng ca Al l:a 6 b 3 c 5 d 4

387.Khi iu ch nhm bng cch in phn Al2O3 nng chy, ngi ta thm cryolit l .(I) h nhit nng chy ca Al2O3, tit kim nng lng.(II) to cht lng dn in tt hn Al2O3 nng chy.(III) ngn cn qu trnh oxi ho nhm trong khng kh.A. (I) (II) v (III) (I) v (II) c ba l do trn.

388.Cu hnh electron ca nguyn t Al l:


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a 1s22s22p63s23p2 b 1s22s22p63s23p4 c 1s22s22p63s23p1 d 1s22s22p63s23p3

389.Khi cho t t n d dung dch NaOH vo dung dch AlCl3 th ...A. khng c hin tng g xy ra.B. ban u c kt ta, sau kt ta tan to dung dch trong sut.C. xut hin kt ta trng keo.D. ban u khng c hin tng g, sau khi NaOH d th c kt ta.

390.Cu hnh electron ca Al3+ ging vi cu hnh electron:a Tt c u ngb Mg2+

c Na+d Ne

391.Cho phn ng sau:Al + HNO3 Al(NO3)3 + NH4NO3 + H2O

H s ca cc cht trong phn ng l ....A. 8, 30, 8, 3, 9B. 8, 30, 8, 3, 15C. 30, 8, 8, 3 , 15D. 8, 27, 8, 3, 12

392.Bnh lm bng nhm c th ng c dd axit no sau y?a HNO3(c nng)

b HNO3(c ngui)c HCld H3PO4(c ngui)

393. lm sch dung dch Al2(SO4)3 c ln CuSO4 c th dng kim loi no trong s cc kim loi:Fe, Al, Zn?

A. Fe.B. Zn.C. Al.D. c ba kim loi trn u c.

394.Cho 4 kim loi: Mg, Al, Ca, K. Chiu gim dn tnh oxi ho ca ion kim loi tng ng l ...A. K, Ca, Mg, Al.B. Al, Mg, Ca, K.C. Mg, Al, Ca, K.D. Ca, Mg, K, Al.

395.Trong cng nghip Al c sn xut.a Bng phng php ha luynb Bng phng php in phn boxit nng chyc Bng phng php thy luynd trong l cao

396.Trn 100ml dung dch HCl 1M vi 100ml dung dch Ba(OH) 2 1M c dung dch X. Thm vo X3,24g nhm. Th tch H2 thot ra ( ktc) l .... lt.

A. 3,36B. 4,032

C. 3,24D. 6,72397.Cho t t dung dch NaOH 1M vo dung dch c cha 26,7g AlCl3 cho n khi thu c 11,7gkt ta th dng li. Th tch dung dch NaOH dng l... ltA. 0,45B. 0,6C. 0,65D. 0,45 hoc 0,65398.iu ch ng t ng (II) oxit bng phng php nhit nhm. iu ch c 19,2 gamng cn dng khi lng nhm l ... gam.A. 8,1B. 5,4


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C. 4,5D. 12,15.399.Cho nhm vo dd NaOH d s xy ra hin tng:

a Nhm tan, c kh thot ra, xut hin kt ta v kt ta tanb Nhm khng tanc Nhm tan, c kh thot ra, xut hin kt tad c kh thot ra

400.Nhm c th phn ng c vi tt c cc cht no sau y?a. dd HCl, dd H2SO4 c ngui, dd NaOH.b. dd H2SO4long, dd AgNO3, dd Ba(OH)2.c. dd Mg(NO3)2, dd CuSO4, dd KOH.d. dd ZnSO4, dd NaAlO2, dd NH3.

401.Nhm l kim loi c kh nng dn in v nhit tt l do:a mt electron t do tng i lnb d cho electronc kim loi nhd tt c u ng

402.Cho phn ng: Al + H+ + NO3- Al3+ + NH4+ + .H s cn bng cc thnh phn phn ng v sn phm ln lt l...

a. 8,30,3,8,3,9.

b. 8,30,3,8,3,15.c. 4,15,3,4,3,15.d. 4,18,3,4,3,9.

403.Cho 2,7 gam Al vo dung dch HCl d, thu c dung dich c khi lng tng hay gim baonhiu gam so vi dung dch HCl ban u?

a. Tng 2,7 gam.b. Gim 0,3 gam.c. Tng 2,4 gam.d. Gim 2,4 gam.

404.Al(OH)3 tan c trong:a dd HClb dd HNO3(c nng)c Tt c u ngd dd NaOH

405.Ngi ta c th iu ch nhm bng cch...a. in phn dung dch mui nhm.b. in phn nng chy mui nhom.c. in phn nng chy nhm oxit.d. nhit luyn nhm oxit bng cht kh CO.

406.Cho 2,7gam mt kim loi ha tr III tc dng va vi 1lt dung dch HCl 0,3M.Xc nh kim loi ha tr III?

a Vb Fe

c Crd Al

407.Cc cht no sau y u tan c trong dung dch NaOH?a. Na, Al, Al2O3.b. Al(OH)3, Mg(OH)2, NaOH.c. MgCO3, Al, CuO.d. KOH, CaCO3, Cu(OH)2.

408.Ha tan han ton 5,4gam mt kim loi vo dd HCl(d) ,th thu c 6,72lt kh (KTC).Xc nh kim loi .

a Mgb Zn


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c Fed Al

409.Sc CO2 t t n d vo dung dch NaAlO2 thy c hin tng ...a. dung dch vn trong sut.b. xut hin kt ta trng sau tan tr li.c. xut hin kt ta keo trng, khng tan.d. xut hin kt ta nhm cacbonat.

410.V sao ni nhm oxit v nhm hiroxit l cht lng tnh?a tc dng vi axit

b tc dng vi ncc tc dng vi bazd va c kh nng cho v nhn proton

411.Cc cht no sau y va tc dng vi dung dch axit mnh va tc dng vi dung dch bazmnh?

a. Al2O3, Al, Mg.b. Al(OH)3, Al2O3, NaHCO3.c. Al(OH)3, Fe(OH)3, CuO.d. Al, ZnO, FeO.

412.C th dng thuc th no sau y nhn bit cc dung dch sau:Cu(NO 3)2 v Al2(SO4)3 vBa(NO3)2

a dd NH3(d)b Tt c u ngc Cu v dd HCld kh CO2

413.C th dng cht no sau y nhn bit 3 gi bt Al, Al 2O3, Mg?a. dd NaOH.dd HCl.b. nc.c. Dd NaCl.

414.1,02gam nhm oxit tc dng va vi 0,1lt dd NaOH .Nng ca dd NaOH l:a 0,1M b 0,3M c 0,2M d 0,4M

415.10,2 gam Al2O3 tc dng va vi ... dung dch NaOH 0,8M.a. 600 ml 700 ml 750 ml 300 ml

416.b. 24,3 gam nhm tan hon ton trong dung dch HNO3 (d), th thu c 8,96lt kh gm NOv N2O ( ktc)Thnh phn phn trm v th tch ca mi kh l:

a 24%NO v 76% N2O b 30%NO v 70% N2O c 25%NO v 75% N2O d50%NO v 50% N2O

417.Trn H2SO4 1,1M vi dung dch NaOH 1M theo t l th tch 1:1 c dung dch A. Cho 1,35gam nhm vo 200 ml dung dch A. Th tch H2(kc) to ra l ...

a. 1,12 lt. 1,68 lt. 1,344 lt. 2,24 lt.418.V tr ca Al trong BTH l:

a Chu k 3, nhm IIIB b Chu k 3, nhm IVA c Chu k 3, nhm IIIA d Chu k 2nhm IIIA

419.uyra l hp kim ca nhm vi...a. Cu, Mn, Mg. Sn, Pb, Mn. Si, Co, W. Mn, Cu, Ni.

420.Cho natri d vo dd AlCl3 s xy ra hin tng:a c kt ta keo b c kh thot ra, c kt ta keo c c kh thot rad c kh thot ra, c kt ta keo, sau dd trong sut tr li

421.C th iu ch Al bng cch ...a. kh Al2O3 bng CO nhit cao. in phn nng chy AlCl3. in phn nng chy

Al2O3.b. in phn nng chy Al(OH)3.

422.Ha tan hon ton 28,6gam hn hp nhm v st oxit vo dd HCl d th c 0,45mol hirothot ra.


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Thnh phn phn trm v khi lng nhm v st oxit ln lt l:a 60% v 40% b 20% v 80% c 50% v 50% d 28,32% v 71,68%

423.Al(OH)3 tan c trong ...a. dung dch natrihidroxit. dung dch amoniac. dung dch axit clohidric. dung dch

natrisunfat.424.Cho dung dch NH3 n d vo dung dch hn hp AlCl3, ZnCl2 thu c kt ta A. Nung A nkhi lng khng i thu c cht rn B. Cho H2 (d) qua B nung nng thu c cht rn ...

a. Al2O3. Zn v Al2O3. ZnO v Al. ZnO v Al2O3.425.Tnh cht ha hc c bn ca Al l:

a khng tc dng vi cc nguyn t khc b kh c va kh, va oxi ha doxi ha

426.Dung dch AlCl3 trong nc b thu phn, nu thm vo dung dch mt trong cc cht sau. Chno lm tng qu trnh thu phn ca AlCl3?

a. NH4Cl ZnSO4 Na2CO3 Khng c cht no.427.Nguyn t X c s th t l 13. V tr ca X trong BTH l:

a chu k 4,nhm IA b chu k 2, nhm IIA c chu k 4, nhm IIIA d Chu k 3nhm IIIA428.Cho s chuyn ha: Al A B C A NaAlO2. Cc cht A,B,C ln lt l ...

a. Al(OH)3, AlCl3,Al2(SO4)3.b. Al2O3, AlCl3, Al(OH)3. NaAlO2, Al(OH)3, Al2O3. AlCl3, Al(OH)3, Al2O3.

429.Dng phong php no sau y iu ch Al t Al 2O3 ?a in phn dung dch b phng php thy luyn c phng php nhit luynd in phn nng chy

430.Cho 1,75 gam hn hp kim loi Fe, Al, Zn tan hon ton trong dung dhc HCl, thu c 1,12 lkh H2 (kc). C cn dung dch thu c hn hp mui khan l ...

a. 5 gam. 5,3 gam. 5,2 gam. 5,5 gam.431.Tnh cht no sau y khng phi l ca Al ?

a kim loi nh, mu trng b kim loi nng, mu en c kim loi do,d dtmng,ko thnh si

d kim loi c kh nng dn in, dn nhit432.Ha tan hon ton mt hn hp kim loi gm Mg, Al trong dung dch HCl, thu c 0,4 mol

kh (kc). Cng lng hn hp trn khi tc dng vi dung dch NaOH d li thu c 6,72 lt kh H(kc). Khi lng ca Mg, Al trong hn hp ban u ln lt l ...a. 2,4 gam v 5,4 gam. 3,5 gam v 5,5 gam. 5,5 gam v 2,5 gam. 3,4 gam v 2,4 gam.

433.Nhm kim loi nguyn cht khng tan trong nc l doa. Al tc dng vi nc to ra Al(OH)3 khng tan trn b mt, ngn cn phn ng.b. Al tc dng vi nc to ra Al2O3 khng tan trn b mt, ngn cn phn ng.c. trn b mt nhm c lp oxit bn vng bo v.d. nhm khng c kh nng phn ng vi nc.434.Mt mu nhm kim loi lu trong khng kh. Cho mu nhm vo dung dch NaOH dS c phn ng ha hc no xy ra trong s nhng phn ng cho sau y?(1) 2Al + 6H2O 2Al(OH)3 + 3H2(2) Al2O3 + 2NaOH 2NaAlO2 + H2O

(3) Al(OH)3 + NaOH NaAlO2 + 2H2O(4) 2Al + 2NaOH + 2H2O 2NaAlO2 + 3H2a. Phn ng theo th t: (2), (1), (3). b. Phn ng theo th t: (1), (2), (3). c. Phn ng theoth t: (1), (3), (2).d. Phn ng (4).435.Trong iu kin thch hp, Al phn ng vi:1Halogen; 2 Hiro; 3 Nc; 4 Lu hunh; 5Nit; 6 Cacbon; 7 Axit; 8 Kim; 9St(II)oxit; 10 ct

a 2,4,6,8 b 1,3,5,7 c 10,9 d Tt c cc u ng436.St va th hin ha tr II va th hin ha tr III khi tc dng.

A. Cl2 B. Dung dch HCl C. O2 D. ST437.nh cht vt l no sau y ca St khc vi cc n cht kim loi khc.


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A. Tnh do, d rn. Dn in v nhit tt. C tnh nhim t. L kim loi nng.438.Hp cht no khng tc dng vi dung dch HNO3.

A. Fe(NO3)2 B. Fe(NO3)3 C. Fe(OH)3 D. C A v B439.a) Phn ng no sau y khng th xy ra:A) St tc dng vi dung dch HCl. B) St tc dng vi dung dch H2SO4 long. C) St tc dngvi dung dch HNO3.D) St tc dng vi dung dch HNO3 c ngui440. Hp cht no tc dng vi dung dch HNO3 long khng gii phng kh NO.

A. Fe2O3 B. FeO C. Fe3O4 D. C A v B

441.Cho st tc dng vi HNO3 long ta thu c hp cht ca st l:A: Mui st (III) B: Mui st (II) C: Oxit st (III) D: Oxit st (II)442.Tnh kh ca St c th hin khi:

A. Nhng 2 electron phn lp 4s. D Nhng 1 electron phn lp 3d.B. Nhng 2 electron phn lp 4s hoc nhng thm 1 electron phn lp 1dC. Cc trn u sai.

443.Tnh cht ha hc c bn ca st l.A. Tnh oxi ha B. Tnh kh C. Tnh oxi ha v tnh kh D. Khng xc nh c

444.Cu hnh electron ca nguyn t st l:A. 1s22s22p63s23p63d64s2

B. 1s2

2s2

2p6

3s2

3p6

3d8

C. 1s22s22p63s23p63d74s1

D. 1s22s22p63s23p63d8

445.Nguyn t st c th b oxi ha thnh cc mc ion c th c.A. Fe2+ B. Fe3+ C. Fe2+ , Fe3+ D. Fe3+ , Fe4+

446.Mt tm kim loi bng Au b bm mt lp Fe b mt. Ta c th ra lp Fe loi tp chttrn b mt bng dung dch no sau y:

A. Dung dch CuCl2 d. B. Dung dch ZnCl2 d. C. Dung dch FeCl2 d. D.Dung dch FeCl3 d.447.C th ng axt no sau y trong bnh st.

A. HCl long B. H2SO4 long C. HNO3 c,ngui D. HNO3 c,nng448.Phn ng no di y khng th xy ra ?

A. 2Fe + 3Cl2 2FeCl3 bCl2 + 2NaI 2NaCl + I2 2Fe + 3I2 2FeI3 2NaOH + Cl2 NaCl + NaClO + H2O

449.Chn cu ng:A.in trng v t trng tn ti c lp nhau. B.in trng v t trng l hai trng

ging nhau.C.Trng in t l mt dng vt cht. D.Tng tc in t lan truyn tc thi trong

khng gian.p n: C450.Cht v ion no ch c th c tnh kh ?

A. Fe; Cl-; S; SO2 Fe; S2-; Cl- HCl; S2-; SO2; Fe2+ S; Fe2+; Cl-; HCl451.Tnh cht ha hc chung ca hp cht st (III) l.

A. Tnh oxi ha B. Tnh kh C. Tnh oxi ha v tnh kh D. Khng xc nh c

452.Cho cc cht : Cu, Fe, Ag v cc dung dch HCl, CuSO4, FeCl2, FeCl3.S cp cht c phn ngvi nhau l:

A: 2 B: 3 C: 4 D: 5453.Hn hp bt Mg, Zn, Fe, Al. thu c st tinh khit t hn hp, ta ngm hn hp trong ccdung dch d no.

A. Mg(NO3)2 B. Zn(NO3)2 C. Fe(NO3)2 D. Al(NO3)3454.Nhng thanh Fe ( nh sch ) vo dung dch sau, sau mt thi gian rt thanh Fe ra, sykh nhn thy th no? (( Gi s cc kim loi sinh ra (nu c) u bm vo thanh Fe)). Nhn xtno sau y l sai?


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A. Dung dch CuCl2 : Khi lng thanh Fe tng so vi ban u.B. Dung dch KOH: Khi lng thanh Fe khng thay i.C. Dung dch HCl: Khi lng thanh Fe gim.D. Dung dch FeCl3: Khi lng thanh Fe khng thay i.

455.Mu hp kim st - thit trong khng kh m b n mn kim loi, cho bit kim loi b phhy.

A. St B. Thit C. C 2 kim loi D. Khng xc nh c456.Cu hnh electron ca Fe2+ l:

A. 1s2 2s2 2p6 3s2 3p6 4s2 4p6 .1s2 2s2 2p6 3s2 3p6 3d6 4s2 .1s2 2s2 2p6 3s2 3p6 3d6 .1s2 2s2 2p6 3s

3p6 3d5 4s1 .457. iu ch Fe(NO3)2 c th dng phn ng no sau y:

A. Fe + HNO3 B. Ba(NO3)2 + FeSO4C. Fe(OH)2 + HNO3 D. FeO + HNO3

458.Cu hnh electron ca Fe3+ l:A. 1s2 2s2 2p6 3s2 3p6 4s2 4p3 .b1s2 2s2 2p6 3s2 3p6 3d3 4s2 .1s2 2s2 2p6 3s2 3p6 3d5 4s1 .1s2 2s2 2p

3s2 3p6 3d5 .459.St tc dng vi dung dch HNO3 c th thu c ti a bao nhiu nhm sn phm gm: musn phm b kh v nc.

A. 2 nhm B. 3 nhm C. 4 nhm D. 5 nhm460.Tnh cht ho hc chung ca hp cht st ( II ) l:

A: Tnh oxi ho B: Tnh kh C: Tnh oxi ho v tnh kh D: Khng c nhng tnh chttrn461.Phn ng no khng th xy ra khi trn ln cc dung dch sau.

A. AgNO3 + Fe(NO3)2 B. Fe(NO3)2 + HNO3 longC. Fe(NO3)2 + HNO3 c D. Fe(NO3)2 + HNO3 long

462.Tnh cht ho hc chung ca hp cht st (III) l :A: Tnh oxi ho B: Tnh kh C: Tnh oxi ho v tnh kh D: Khng c nhng tnh cht

trn463.in phn dung dch mui sunfat ca kim loi ha tr II thu oc 3,36 l kh (ktc) anot v16,8 g kim loi catot. Xc nh cng thc ha hc ca mui sunfat trn.

A. ZnSO4 B. FeSO4 C. NiSO4 D. CuSO4464. Phn ng no sau y khng chng minh c tnh cht oxi ho ca hp cht st (III) :

A: Fe2O3 tc dng vi nhm B: St (III) clorua tc dng vi stC: St (III) clorua tc dng vi ng D: St (III) nitrat tc dng vi dung dch Baz

465.Cho thanh st c khi lng a gam vo dung dch cha b mol CuCl2 sau mt thi gian lythanh st ra khi dung dch th thy khi lng thanh st. (Cho bit Cu to ra bm ln thanh st)

A. Tng B. Gim C. Khng i D. Khng xc nh c466..Phn ng no sau y sai :

A: Al + Fe2O3 Al2O3 + FeB: Fe3O4 + HCl FeCl2 + FeCl3 + H2OC: FeO + CO Fe + CO2D: Fe3O4 + HNO3 Fe(NO3)2 + Fe(NO3)3 + H2O

467.Trong 3 oxt FeO, Fe2O3, Fe3O4 cht no tc dng vi axt HNO3 cho ra cht kh.

A. Ch c FeO B. Ch c Fe2O3 D. Ch c Fe3O4 D. FeO v Fe3O4468.Phn ng no di y hp cht st ng vai tr oxi ho :A: Fe2O3 + HCl FeCl3 + H2B: FeCl3 + KI FeCl2 + KCl + I2C: 10FeO + 2KMnO4 +18H2SO4 5Fe(SO4)3 + 2MnSO4 + K2SO4 + 18H2OD: Fe(OH)2 + O2 + H2O Fe(OH)3

469. nhn bit 3 hn hp: Fe + FeO ; Fe + Fe2O3 ; FeO + Fe2O3 dng cch no sau y.A. HNO3 v NaOH B. HCl v ung dch KIC. H2SO4 c v KOH D. HCl v H2SO4 c

470.Cho dung dch metylamin d ln lt vo dung dch sau: FeCl3; AgNO3; NaCl; Cu(NO3)2. S kta thu c l:


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A. 1 B. 2 C. 3 D. 4471. Trong cc phn ng sau, phn ng no khng l phn ng oxi ha kh?

A. H2SO4 + Fe FeSO4 + H2B. H2SO4 + Fe Fe2(SO4)3 + SO2 + H2OC. H2SO4 + Fe3O4 FeSO4 + Fe2(SO4)3 + H2OD. H2SO4 + FeO Fe2(SO4)3 + SO2 + H2O

472. diu ch st trong cng nghip ngi ta dng phng php no trong cc phng phpsau:

A. in phn dung dch FeCl2 B. Kh Fe2O3 bng AlC. Kh Fe2O3 bng CO D. Mg tc dng vi FeCl2

473.Cp cht no di y khng kh c st trong cc hp cht:A. H2; Al B. Ni; Sn C. Al; Mg D. CO; C

474.Cho s phn ng:FeO dung dch X Fe2(SO4)3

Hy xc nh M.A. KMnO4 B. HNO3 C. KNO3 D. C A, B, C u ng

475.Hp cht no ca st phn ng vi HNO3 theo s ?Hp cht Fe + HNO3 Fe(NO3)3 + H2O + NO

A. FeO B. Fe(OH)2 C. FexOy ( vi x/y 2/3 ) D. Tt c u ng476.Cho phng trnh phn ng:

FeCu2S2 + O2 ba oxitSau khi cn bng t l s mol ca FeCu2S2 v O2 l:A. 4 v 15 B. 1 v 7 C. 2 v 12 D. 4 v 30

477.t chy 1 mol st trong oxi c 1 mol st oxit. Oxit st to thnh l:A. FeO B. Fe2O3 C. Fe3O4. Khng xc nh c.

478.Cho 1 gam bt Fe tip xc vi oxi mt thi gian thu c 1,24g hn hp Fe 2O3 v Fe d. LnFe cn d l:

A. 0,44g. B. 0,24g C. 0,56g. D. 0,76g.479.Cho 2,81 gam hn hp A (gm 3 oxit: Fe2O3, MgO, ZnO) tan va trong 300ml dung dchH2SO4 0,1M, khi lng hn hp cc mui sunfat khan to ra l:

A. 3,8g B. 4,81g C. 5,21g D. 4,8g480.Mt dung dch cha hai cation l Fe2+ (0,1mol); Al3+ (0,2mol) v 2 anion l Cl- (x mol); SO42- (mol). Khi c cn dung dch thu c 46,9g mui khan. Tr s ca x v y ln lt l

A. 0,3 v 0,2 B. 0,2 v 0,3 C. 0,1 v 0,2 D. 0,2 v 0,4481.Nguyn t A c tng s ht p, n, e l 82. S ht mang in nhiu hn s ht khng mang inl 22. A c s khi l:

A. 60 B. 70 C. 72 D. 56482.Ha tan 2,4g mt oxit st va 90ml dung dch HCl 1M. Cng thc phn t oxit st l:

A. Fe2O3 B. Fe3O4 C. FeO D. Khng xc nh c.483.Ha tan 10g hn hp bt Fe v Fe2O3 bng mt lng dung dch HCl va thu c 1,12 lthiro ( ktc) v dung dch A. Cho NaOH d vo dung dch A thu c kt ta, nung kt ta trongkhng kh n khi lng khng i c m gam cht rn th gi tr ca m l:

A. 12g B. 11,2g C. 7,2g D. 16g

484. 20oC khi lng ring ca Fe l 7,85g/cm3. Gi thit trong tinh th cc nguyn t Fe l nhnhnh cu chim 75% th tch tinh th. Phn cn li l cc khe rng gia cc qu cu v khi lngnguyn t Fe l 55,85 vC th bn knh gn ng ca mt nguyn t Fe nhit ny l:

A. 1,29.10-8 cm B. 0,53.10-8 cm C. 1,37.10-8 cm D. 1,089.10-8 cm

485.Cho Ba kim loi vo cc dung dch sau :

X1 = NaHCO3 X2 = CuSO4 X3 = ( NH4)2CO3 X4 = NaNO3

X5 = MgCl2 X6 = KCl X7 = NH4Cl

Vi dung dch no th khng gy kt ta ?

(a) X4, X6, X7 (b) X1, X4, X5 (c) X3, X6, X7 (d) X2, X3, X4


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486.Khi cho ming Na vo dung dch CuCl2 thy c:a. Bt kh c. C kt ta mu xanhb. C kt ta nu d. C kh v kt ta mu xanh

487.Cho Ba kim loi vo cc dung dch sau :

X1 = NaHCO3 X2 = CuSO4 X3 = ( NH4)2CO3 X4 = NaNO3

X5 = KCl X6 = NH4Cl

Vi dung dch no th gy kt ta ?

(a) X1, X2, X3 (b) X1, X3, X4(c) X2, X3, (d) X2, X5, X6

488. th dng phng php no sau y iu ch c tt c cc kim loi: Na, Fe, Cua. Phng php thu luyn c. Phng php in phnb. Phng php nhit phn d. C 3 phng php trn

Cho dung dch NaOH (c d) vo dung dch cha ba mui AlCl3, CuSO4 v FeSO4. Tch kt ta emnung trong khng kh n khi lng khng i. Cht rn thu c sau khi nung l :

(a) Fe2O3, CuO (b) Fe2O3, Al2O3 (c) Al2O3, FeO (d) Al2O3, CuO

489.Nguyn t ca nguyn t kim loi no lun cho 2e trong cc phn ng ho hc?a. Na ( S th t 11) c. Al ( S th t 13)

b. Mg ( S th t 12) d. Fe ( S th t 26)490.Cho dung dch Ba(OH)2 (c d) vo dung dch cha hai mui AlCl3 v FeSO4. Tch kt ta em

nung trong khng kh n khi lng khng i. Cht rn thu c sau khi nung l :

(a) Fe2O3, BaSO4 (b) Fe2O3, Al2O3 (c) Al2O3, BaSO4 (d) FeO, BaSO4

491.Xp cc cp oxi ho kh sau theo th t tng dn tnh oxi ho ca cc ion kim loi:Zn2+/ Zn (1), Fe2+/ Fe (2), Al3+/Al (3), 2H+/H2 (4), Ag+/Ag (5), Cu2+/Cu (6), Fe3+/Fe2+ (7)

a. 6 < 3 < 1 < 2 < 4 < 7 < 5 c. 5 < 1 < 6 < 2 < 3 < 4 < 7b. 4 < 6 < 7 < 3 < 2 < 1 < 5 d. 3 < 1 < 2 < 4 < 6 < 7 < 5

492.Cho 4 kim loi : Al, Fe, Mg, Cu v 4 dung dch : ZnSO4, AgNO3, CuCl2, FeCl3. Kim loi no phng c vi 3 trong s 4 dung dch :

(a) Fe (b) Mg (c) Al (d) Cu

493.Trong cc phn ng sau:(1) Cu + 2Ag+ Cu2+ + 2Ag; (2) Cu + Fe2+ Cu2+ + Fe; (3) Zn + Cu2+ Zn2+ + CuPhn ng no c c theo chiu thun?

a. Ch c 1 c. Ch c 3b. Ch c 2, 3 d. Ch c 1 v 3

494.Thi mt lng hn hp kh CO v H2 d i chm qua mt hn hp un nng gm Al2O3, CuO,Fe2O3, Fe3O4. Kt qu thu c cht rn gm :

(a) Cu, Fe, Al2O3 (b) Cu, FeO, Al (c) Cu, Fe3O4, Al2O3(d) Cu, Fe, Al

495.Cho 4 ion Al3+, Zn2+, Cu2+, Pt2+, chn ion c tnh oxi ho mnh hn Pb2+a. Ch c Cu2+ c. Ch c Al3+

b. Ch c Cu2+, Pt2+ d. Ch c Al3+, Zn2+

496.Cho cc dung dch :

X1 (HCl) X2 (KNO3) X3 (HNO3) X4 ( HCl, KNO3) X5 ( FeCl3)

Dung dch ha tan c Cu kim loi l :

(a) X3, X4, X5 (b) X3 , X5 (c) X3, X4 (d) X1, X2, X3

497.Cho 4 kim loi Mg, Al, Zn, Cu. Chn kim loi c tnh kh yu hn H 2.a. Mg v Al c. Zn v Cu


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b. Al v Zn d. Ch c Cu

498.Cho s bin i sau:

X + HCl B + H2 (1); B + dd NaOH C + D (2)

C + dd KOH dd E + ... (3); ddE + HCl ( va) C+ (4)

Kim loi no trong s cc kim loi sau y (Fe, Zn, Al, Mg, Cu) tha mn c cc bin i ?

(a) Al, Zn (b) Al (c) Mg, Fe (d) Al, Cu

499.in phn dung dch cha NaCl v HCl c thm vi git qu. Mu ca dung dch s bin inh th no trong qu trnh in phn?

a. sang tm c. sang xanhb. sang tm ri sang xanh d. Ch c mu

500.Cho 4 dung dch mui: CuSO4, ZnCl2, NaCl, KNO3. Khi in phn 4 dung dch trn vi in cctr, dung dch no s cho ta 1 dung dch baz?

a. CuSO4 c. NaCl b. ZnCl2 d. KNO3501.C cc cht sau: NaCl, Ca(OH)2, Na2CO3, HCl. Cht no c th lm mm nc cng tm thi?

a. Ca(OH)2 v Na2CO3 c. Ch c Na2CO3b. Ch c HCl d. Ch c Ca(OH)2

502.C 4 dung dch trong sut, mi dung dch ch cha mt loi cation v mt loi anion. Cc loiion trong c 4 dung dch gm: Mg2+, Ba2+, Ca2+, K+, SO42-, NO3-, CO32-, Cl-. Bn dung dch l:

a. K2SO4, Mg(NO3)2, CaCO3, BaCl2 c. MgSO4, BaCl2, K2CO3, Ca(NO3)2b. BaCO3, MgSO4, KCl, Ca(NO3)2 d. CaCl2, BaSO4, Mg(NO3)2, K2CO3.

503.Cho cc nguyn t : 4Be; 11Na; 12Mg; 19K. Chiu gim dn tnh baz ca cc hydroxit tng nnh sau :

(a) KOH > NaOH > Mg(OH)2 > Be(OH)2 (b) Be(OH)2 > Mg(OH)2 > NaOH > KOH

(c) Mg(OH)2 > Be(OH)2 > KOH > NaOH(d) Mg(OH)2 > Be(OH)2 > NaOH > KOH

504.Cho cc cht sau y tc dng vi nhauCu + HNO3c Kh X

MnO2 + HCl c Kh YNa2CO3 + FeCl2 + H2O Kh ZCng thc phn t ca cc kh X, Y, Z ln lt l?a. NO, Cl2, CO2 c. NO2, Cl2, COb. NO2, Cl2, CO2 d. N2, Cl2, CO2

505.Mt tm kim loi Au b bm mt lp st trn b mt. Ta c th ra lp st bng cch dngdung dch no trong s cc dung dch sau (I) CuSO4 d, (II) FeSO4 d,(III) FeCl3 d, (IV)ZnSO4 d, (V) HNO3

(a) (III) hoc (V) (b) (I) hoc (V) (c) (II) hoc (IV) (d) (I) hoc (III)

506.Ch dng nc v mt dung dch axit hay baz thch hp, phn bit 3 kim loi:Na,Ba, Cu

a. Nc, dung dch HNO3 c. Nc, dung dch H2SO4b. Nc, dung dch NaOH d. Nc, dung dch HCl

507.C 4 cht ring bit : Na2O, Al2O3, BaSO4, v MgO. Ch dng thm H2O v dung dch HCl cth nhn bit c bao nhiu cht ?

(a) 4 (b) 3 (c) 2 d)1

508.Dng t hp 2 trong 4 ho cht sau: dung dch HCl, dung dch NaOH, nc Br 2, dung dch NH3 phn bit cc cht Cu, Zn, Al, Fe2O3.

a. Dung dch NaOH, nc Br2 c. Dung dch HCl, nc Br2b. Dung dch HCl, nc NH3 d. Dung dch HCl, dung dch NaOH


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509. 5 dung dch mt nhn: CaCl2, MgCl2, FeCl3, FeCl2, NH4Cl. Dng kim loi no sau y phnbit 5 dd trn :

(a) Na(b) Mg (c) Al (d)Fe

510. phn bit Fe kimloi, FeO, Fe2O3 v Fe3O4 ta c th dng:a. Dung dch H2SO4 v dung dch NaOH c. Dung dch H2SO4 v dung dch NH3b. Dung dch H2SO4 v dung dch KMnO4 d. Dung dch NaOH v dung dch NH3

511.t mt kim loi trong bnh kn ng kh clo, thu c 32,5g mui clorua v nhn thy th tckh clo trong bnh gim 6,72 lt ( ktc). Hy xc nh tn ca kim loi dng.

a. ng c. Canxi b. Nhmd. St

512.X l 10 g hp kim nhm bng dung dch NaOH c nng (d), ngi ta thu c 11,2 lt kh H(ktc). Hy cho bit thnh phn % ca nhm trong hp kim

a. 85% c. 95% b. 90%d. Kt qu khc

513.Ngm 1 l km (d)vo trong 200 ml dung dch AgNO3 0,5M. Kt thc hon ton lng Ag thuc l:

a. 8,8 g c. 13 g b. 6,5 gd. 10,8 g

514.C 2 lt dung dch NaCl 0,25 M. C cn dung dch trn ri in phn nng chy vi hiu sut

80% th thu c khi lng kim loi Na l:a. 9,2 g c. 11,5 g b. 9,1 gKt qu khc

515.Ngm mt inh st sch vo 100 ml dung dch CuSO4 sau khi phn ng kt thc ly inh st rkhi dung dch, ra sch, lm kh thy khi lng inh st tng thm 1,6 g. Tnh C M ca dung dchCuSO4 ban u?

a. 0,25 M c. 1 Mb. 2 M d. 0,5 M

516.in phn mt mui clorua kim loi trng thi nng chy. Sau mt thi gian ta thy catt c2,74 g kim loi v ant c 448 ml kh (ktc). Vy cng thc ca mui clorua l:

a. CaCl2 c. NaCl b. KCld. BaCl2

517.Hai kim loi A v B c ho tr khng i l II.Cho 0,64 g hn hp A v B tan hon ton trongdung dch HCl ta thy thot ra 448 ml kh (ktc). S mol ca hai kim loi trong hn hp l bngnhau. Hai kim loi l:

a. Zn, Cu c. Zn, Ba b. Zn, Mgd. Mg, Ca

518.Ho tan hon ton 1,45 g hn hp 3 kim loi Zn, Mg, Fe vo dung dch HCl d, thy thot ra0,896 lt H2 (ktc). un khan dung dch ta thu c m gam mui khan th gi tr ca m l:

a. 4,29 g c. 3,19 g b.2,87 gd. 3,87 g

519.Cho mt thanh ng nng 10 g vo 200 ml dung dch AgNO 3 0,1 M. Sau mt thi gian ly racn li thy thanh ng c khi lng 10,76 g ( gi s Ag sinh ra bm hon ton ln thanh ng).

Cc cht c trong dung dch v s mol ca chng l:a. AgNO3 (0,02 mol) v Cu(NO3)2 (0,005 mol) d.AgNO3 (0,01 mol) v Cu(NO3)2 (0,005 mol)b. AgNO3 (0,01 mol)c, Cu(NO3)2 (0,005 mol)

520. Ho tan hon ton 4,68 g hn hp mui cacbonat ca hai kim loi A, B k tip nhau trongnhm IIA vo dung dch HCl thu c 1,12 lt kh CO 2 ( ktc). Hai kim loi A, B ln lt l:

a. Mg v Ca c. Ca v Sr b. Be v Mgd. Sr v Ba

521.Cho 100 ml dung dch AgNO3 0,5 M tc dng vi 1,28 g bt ng. Sau khi phn ng ktthc.Hy tnh:

1.S gam Ag c gii phng?a. 21,6 g c. 5,4 g b. 10,8 g

d. 4,32 g


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522.Khi cho 17,4 g hp kim gm st, ng, nhm phn ng ht vi H 2SO4 long d ta thu cdung dch A; 6,4 g cht rn; 9,856 lt kh B ( 27,30C v 1 atm). Phn trm khi lng mi kim latrong hp kim Y l:

a. Al: 30%; Fe: 50% v Cu: 20% b. Al: 30%; Fe: 32% v Cu 38% c. Al: 31,03%Fe: 32,18% v Cu: 36,79% d. Al: 25%; Fe: 50% v Cu: 25%523.in phn 200ml dd CuSO4 0,5 M v FeSO4 0,5M trong 15 pht vi in cc tr v dng inI= 5A s thu c catot:a. ch c ng c, Va ng, va st b, ch c st d, va ng va st vi lng mi kimloi l ti a

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