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TRNG THPT CHUYN NGUYN HU

THI TH I HC LN III- NM 2014 Mn: Ha hc

Thi gian lm bi: 90 pht;(60 cu trc nghim)

M thi 132

Cho khi lng nguyn t ca cc nguyn t: H: 1; C: 12; N: 14; O: 16; Na: 23;Mg: 24;Al: 27; S: 32; Cl: 35,5; K: 39; Ca:40; Cr:52; Mn: 55; Fe: 56; Ni: 59; Cu: 64; Zn: 65;Br: 80; Ba: 137; Ag: 108; Sn: 119; I. Phn chung cho tt c cc th sinh( 40 cu, t cu {} n cu {}) Cu 1: Cho hn hp X gm ancol benzylic, metanol, propenol v etilen glicol tc dng ht vi Na thu c 1,344 lt H2 ( ktc). Mt khc, t chy hon ton m gam X thu c 6,048 lt kh CO2 ( ktc) v 5,58 gam H2O. Gi tr ca m l

A. 6,28. B. 5,64. C. 5,78. D. 4,82. Cu 2: Chia 0,16 mol hn hp X gm hai anehit n chc A v hai chc B ( MA< MB) thnh hai phn bng nhau. Hiro ha phn 1 cn va ng 3,584 lt H2 ( ktc). Cho phn 2 tc dng vi mt lng d dung dch AgNO3/ NH3 thu c 25,92 g Ag v 8,52 g hn hp hai mui amoni ca hai axit hu c. Cc phn ng xy ra hon ton. Thnh phn % khi lng ca A trong hn hp X l:

A. 49,12% B. 50,88% C. 34,09% D. 65,91% Cu 3: un nng 10,71 gam hn hp X gm propyl clorua v phenyl clorua vi dung dch NaOH long, va v un nng, sau thm tip dung dch AgNO3 n d vo hn hp sau phn ng thu c 8,61 gam kt ta, cc phn ng xy ra hon ton. Khi lng phenyl clorua c trong hn hp X l

A. 2,71 gam. B. 4,0 gam. C. 4,71 gam D. 6,0 gam. Cu 4: Hp cht hu c X c cng thc phn t C9H16O4. Khi thy phn trong mi trng kim thu c mt mui m t mui ny iu ch trc tip c axit dng sn xut t nilon-6,6. S cng thc cu to tho mn l

A. 4. B. 2. C. 3. D. 1. Cu 5: Trong cc pht biu sau :

(1) Theo chiu tng dn in tch ht nhn, cc kim loi kim th (t Be n Ba) c nhit nng chy gim dn.

(2) Kim loi Mg c kiu mng tinh th lp phng tm din. (3) Cc kim loi Na, Ba, Be u tc dng vi nc nhit thng. (4) Kim loi Mg tc dng vi hi nc nhit cao. (5) Trong cng nghip, kim loi Al c iu ch bng phng php in phn Al2O3 nng chy. (6) Kim loi Al tan c trong dung dch HNO3 c, ngui. S pht biu ng l A. 3 B. 4 C. 5. D. 2

Cu 6: Thy phn hon ton m1 gam este X mch h bng dung dch NaOH d, thu c m2 gam ancol Y (khng c kh nng phn ng vi Cu(OH)2) v 15 gam hn hp mui ca hai axit cacboxylic n chc. t chy hon ton m2 gam Y bng oxi d, thu c 0,3 mol CO2 v 0,4 mol H2O. Gi tr ca m1 l

A. 11,6. B. 16,2. C. 10,6. D. 14,6. Cu 7: Hp cht X c vng benzen v c cng thc phn t l CxHyO2. Bit trong X c tng s lin kt l 20. Oxi ha X trong iu kin thch hp thu c cht Y c cng thc phn t l CxHy-4O2. Hy cho bit X c bao nhiu cng thc cu to?

A. 2 B. 5 C. 3 D. 4 Cu 8: Cho cht X vo dd NaOH un nng thu c kh Y ; cho cht rn X vo dung dch HCl sau cho Cu vo thy Cu tan ra v c kh khng mu bay ln ha nu trong khng kh. Nhit phn X trong iu kin thch hp thu c mt oxit phi kim. Vy X l cht no sau y ?

A. NH4NO3. B. NH4NO2. C. (NH4)2S. D. (NH4)2SO4. Cu 9: Cho m gam hp cht hu c X c cng thc phn t l C3H6O2 tc dng hon ton vi 200 ml dung dch KOH 0,7M thu c dung dch Y. C cn Y thu c 12,88 gam cht rn khan. Cng thc cu to ca X v gi tr ca m l

A. C2H5COOH v 8,88 gam. B. C2H5COOH v 6,66 gam.

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C. CH3COOCH3 v 6,66 gam. D. HCOOCH2CH3 v 8,88 gam. Cu 10: Cho m gam Fe vo dung dch cha ng thi H2SO4 v HNO3 thu c dung dch X v 4,48 lt NO(duy nht). Thm tip H2SO4 vo X th li thu c thm 1,792 lt kh NO duy nht na v dung dch Y. Dung dch Y ho tan va ht 8,32 gam Cu khng c kh bay ra (cc kh o ktc). Khi lng ca Fe cho vo l

A. 16,24 g. B. 11,2 g. C. 16,8 g. D. 9,6 g. Cu 11: un nng hn hp X gm 0,1 mol axeton; 0,08 mol propenal; 0,06 mol isopren v 0,32 mol hiro c Ni lm xc tc thu hn hp kh v hi Y. T khi ca Y so vi khng kh l 375/203. Hiu sut hiro tham gia phn ng cng l

A. 93,75% B. 87,5% C. 80% D. 75,6% Cu 12: Cho 22,72 gam hn hp gm Fe, FeO, Fe2O3 v Fe3O4 phn ng ht vi dung dch HNO3 long d thu c V lt kh NO(duy nht ktc) v dung dch X. C cn dung dch X thu c 77,44 gam mui khan. Gi tr ca V l

A. 2,688 lt. B. 2,24 lt. C. 4,48 lt. D. 5,6 lt. Cu 13: Cho 17,15 gam hn hp X gm Na v Ba vo nc thu c dung dch Y v 3,92 lt H2 (ktc). Cho kh CO2 vo dung dch Y. Tnh th tch CO2 (ktc) cn cho vo dung dch X kt ta thu c l ln nht ?

A. 2,24 lt V 4,48 lt B. 2,24 lt V 5,6 lt C. V = 2,24 lt hoc V = 5,6 lt D. 3,36 lt V 5,6 lt

Cu 14: Nung nng hn hp gm 15,8 gam KMnO4 v 24,5 gam KClO3 mt thi gian thu c 36,3 gam hn hp Y gm 6 cht. Cho Y tc dng vi dung dch HCl c d un nng lng kh clo sinh ra cho hp th vo 300 ml dung dch NaOH 5M un nng thu c dung dch Z. C cn Z c cht rn khan cc phn ng xy ra hon ton. Khi lng cht rn khan thu c l

A. 12 g B. 91,8 g C. 111 g D. 79,8 g Cu 15: Trong cc thuc th sau: (1) dung dch H2SO4 long, (2) CO2 v H2O, (3) dung dch BaCl2, (4) dung dch HCl. Thuc th c th dng phn bit c cc cht rn ring bit gm: CaCO3, BaSO4 , K2CO3 , K2SO4 l

A. (1) v (2) B. (2) v (4) C. (1), (2), (4) D. (1), (2), (3) Cu 16: Vi xc tc men thch hp cht h c A b thu phn hon ton cho hai aminoaxit thin nhin X v Y vi t l s mol ca cc cht trong phn ng nh sau:1 mol A + 2 mol H2O 2 mol X + 1 mol Y. Thu phn hon ton 20,3 gam A thu c m1 gam X v m2 gam Y. t chy hon ton m2 gam Y cn 8,4 lt O2 kc thu c 13,2 gam CO2, 6,3 gam H2O v 1,23 lt N2 270C, 1 atm. Y c CTPT trng vi CTG. Xc nh X,Y v gi tr m1, m2?

A. NH2-CH2-COOH(15,5g),, CH3-CH(NH2)-COOH; 8,9(g). B. NH2-CH2-CH2-COOH(15g) , CH3-CH(NH2)-COOH; 8,9(g). C. NH2-CH2-COOH(15g), CH3-CH(NH2)-COOH, 8,9(g). D. NH2-CH2-COOH (15g), CH2(NH2)-CH2-COOH; 8,95(g).

Cu 17: Oxi ho 1 ancol n chc bng O2 c mt cht xc tc thu c hn hp X. Chia X thnh ba phn bng nhau. Phn 1 tc dng ht vi Na thu c 8,96 lt H2 (ktc) v hn hp Y, lm kh Y thu c 48,8 gam cht rn khan. Phn 2 tc dng vi NaHCO3 d th thu c 4,48 lt kh CO2 (ktc). Phn ba, tc dng vi AgNO3 / NH3 d thu c 21,6 g bc. CTCT ca ancol dng l:

A. C2H3CH2OH B. C2H5OH C. C2H5CH2OH D. CH3OH Cu 18: Cho a gam Phtphotriclorua (PCl3) vo nc c dung dch X. trung ha ht dung dch X cn dng 500 ml dung dch NaOH 0,3 M. Tnh a?

A. 3,4375 g B. 5,156 g C. 2,375 g D. 4,125 g Cu 19: Cho 0,01 mol mt este X phn ng va ht vi 100 ml dung dch NaOH 0,2M, sn phm to ra ch gm mt mui v mt ancol u c s mol bng s mol este, u c cu to mch cacbon khng phn nhnh. Mt khc x phng ho hon ton mt lng este X bng dung dch KOH va , th va ht 200 ml KOH 0,15M v thu c 3,33 gam mui. X l:

A. Etylenglycol oxalat. B. imetyl aipat. C. ietyl oxalat D. Etylenglicol aipat. Cu 20: Thc hin phn ng nhit nhm vi 9,66 gam hn hp X gm FexOy v nhm, thu c hn hp rn Y. Cho Y tc dng vi dung dch NaOH d thu c 0,672 lt kh (ktc), dung dch D v cht khng

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tan Z. Sc CO2 n d vo dung dch D lc kt ta v nung n khi lng khng i c 5,1 gam cht rn. Cc phn ng xy ra hon ton. Cng thc ca oxit st l

A. Khng xc nh c B. Fe2O3 C. Fe3O4 D. FeO

Cu 21: Khi crckinh du m ngi ta thu c hn hp 2 hirocacbon X, Y l ng phn ca nhau, chng c phn t khi l 86. Halogen ho mi ng phn ch cho 3 dn xut monohalogen. X, Y c tn gi l

A. hexan; 2-metylpentan B. 2,3-imetylbutan; 2,2- imetyl butan C. 3-metyl pentan; 2,3- imetyl butan D. hexan; 2,2-imetyl butan

Cu 22: Hai hirocacbon X v Y u c cng thc phn t C6H6 v X c mch cacbon khng nhnh. X lm mt mu dung dch nc brom v dung dch thuc tm iu kin thng. Y khng tc dng vi 2 dung dch trn iu kin thng nhng tc dng c vi H2 d to ra Z c cng thc phn t C6H12. X tc dng vi dung dch AgNO3 trong NH3 d to ra C6H4Ag2. X v Y l

A. Benzen v Hex-1,5-iin. B. Hex-1,5-iin v benzen. C. Hex-1,4-iin v benzen. D. Hex-1,4-iin v toluen.

Cu 23: Cho Fe3O4 vo dung dch HCl (va ) thu c dung dch X. Hy cho bit trong cc ha cht sau: Cu, Mg, Ag, AgNO3, Na2CO3, NaNO3, NaOH, NH3, KI, H2S c bao nhiu ha cht tc dng c vi dung dch X.

A. 7 B. 9 C. 8 D. 6 Cu 24: Thc hin cc th nghim sau:

(1). Sc kh C2H2 vo dung dch KMnO4. (2). Sc CO2 d vo dung dch NaAlO2 (3). Chiu sng vo hn hp kh (CH4; Cl2). (4). Sc kh H2S vo dung dch FeCl3. (5). Sc kh NH3 vo dung dch AlCl3. (6). Sc kh SO2 vo dung dch H2S.

S th nghim c phn ng oxi ho- kh xy ra l A. 1,2,4,5 B. 2,4,5,6. C. 1,3,4,6. D. 1,2,3,4.

Cu 25: Theo quy tc bt t trong phn t NH4Cl c s kiu lin kt khc nhau l A. 4. B. 3. C. 5. D. 2.

Cu 26: X, Y, Z l 3 nguyn t thuc cng chu k ca bng tun hon. Bit oxit ca X khi tan trong nc to thnh mt dung dch lm hng qu tm, Y phn ng vi nc lm xanh giy qu tm, cn Z phn ng c vi c axit kim. Trt t gim dn tnh kh ca 3 nguyn t trn l:

A. X, Z, Y B. Y, Z, X C. X, Y, Z D. Z, Y, Z Cu 27: T NH2(CH2)6NH2 v mt cht hu c X c th iu ch t Nilon-6,6. CTCT ca X l:

A. HOOC(CH2)4COOH B. HOOC(CH2)5COOH C. HOOC(CH2)6COOH D. CHO(CH2)4CHO

Cu 28: Trong bnh kn c h cn bng ha hc sau: CO2 (k) + H2 (k) CO (k) + H2O (k) ; H > 0. Xt cc tc ng sau n h cn bng: (a) Tng nhit ; (b) Thm mt lng hi nc; (c) gim p sut chung ca h; (d) dng cht xc tc; (e) thm mt lng CO2; Trong nhng tc ng trn, c bao nhiu tc ng lm cn bng chuyn dch theo chiu thun? A. 4 B. 3 C. 1 D. 2.

Cu 29: t chy hon ton hn hp X hai amin no n chc mch h ng ng k tip thu c CO2 v

H2O c t l 22

713

CO

H O

VV

. Nu cho 24,9 g hn hp X tc dng vi HCl d c bao nhiu gam mui khan?

A. 39,5 g B. 43,15 g C. 46,8 g D. 52,275 g Cu 30: Peptit X c cu to bi mt amino axit trong phn t ch cha 1 nhm -COOH v 1 nhm -NH2. Thy phn hon ton 0,1 mol X trong dung dch NaOH (c ly d 20% so vi lng phn ng), c cn dung dch sau phn ng thu c cht rn c khi lng nhiu hn X l 75 g. S lin kt peptit trong phn t X l

A. 15. B. 17. C. 16. D. 14. Cu 31: Phn ng gia 2 cht no sau y c phng trnh ion thu gn l: 2H OH H O

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A. 2H S KOH B. HNO3 +Ca(OH)2 C. 3CH COOH NaOH D. 2 4 2( )H SO Mg OH

Cu 32: Cho cc pht biu sau: (a) Hiro ha hon ton glucoz to ra axit gluconic. (b) iu kin thng, glucoz v saccaroz u l nhng cht rn, d tan trong nc. (c) Xenluloz trinitrat l nguyn liu sn xut t nhn to v ch to thuc sng khng khi. (d) Amilopectin trong tinh bt ch c cc lin kt -1,4-glicozit. (e) Sacaroz b ha en trong H2SO4 c. (f) Trong cng nghip dc phm, saccaroz c dng pha ch thuc. Trong cc pht biu trn, s pht biu ng l A. 3. B. 4. C. 2. D. 5.

Cu 33: Cho vin Zn vo dung dch H2SO4, sau thm vi git CuSO4 vo. Vin Zn b n mn theo kiu:

A. C n mn ha hc ln n mn in ha B. n mn in ha C. n mn vt l D. n mn ha hc

Cu 34: t chy 3,2 gam mt este E n chc, mch h c 3,584 lt CO2 (ktc) v 2,304 gam H2O. Nu cho 15 gam E tc dng vi 200 ml dung dch NaOH 1M, c cn dung dch sau phn ng thu c 14,3 gam cht rn khan. Vy cng thc ca ancol to nn este trn c th l

A. CH2=CH-OH B. CH3OH C. CH3CH2OH D. CH2=CH-CH2OH Cu 35: Ha tan hon ton 24 gam hn hp X gm MO, M(OH)2 v MCO3 (M l kim loi c ha tr khng i) trong 100 gam dung dch H2SO4 39,2% thu c 1,12 lt kh (ktc) v dung dch Y ch cha mt cht tan duy nht c nng 39,41%. Kim loi M l

A. Cu. B. Mg. C. Ca. D. Zn. Cu 36: Cho dung dch K2S ln lt vo cc dung dch ring bit sau: FeCl2, CuCl2, Pb(NO3)2, ZnCl2, FeCl3, MnCl2. S kt ta khc nhau to ra trong cc th nghim trn l:

A. 4 B. 7 C. 5 D. 6 Cu 37: Cho dung dch (ring bit) cc cht sau: axeton; axit acrylic; axit axetic; vinyl axetat, saccaroz, glucoz, fructoz, etyl fomat, o-crezol, axit fomic, but-3-en-1,2-diol v anehit axetic. S dung dch va mt mu dung dch nc brom, va phn ng vi Cu(OH)2/NaOH (trong iu kin thch hp) l:

A. 7. B. 5. C. 4. D. 6. Cu 38: Ho tan hon ton 0,15mol 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 + NaOH 0,75M), sau phn ng hon ton thu c m gam kt ta. Gi tr ca m l

A. 50,5 g. B. 54,4. C. 58,3. D. 46,6. Cu 39: Cho hn hp gm 0,01 mol Al v 0,02 mol Mg tc dng vi 100ml dung dch cha AgNO3 v Cu(NO3)2, sau khi phn ng xy ra hon ton thu c m gam cht rn X gm 3 kim loi, X tc dng hon ton vi HNO3 c, d thu c V lt NO2( ktc v duy nht ). Gi tr ca V l

A. 1,904 lt. B. 1,456 lt C. 1,568 lt D. 1,232 lt Cu 40: Cho cc cp cht sau:

(1). Kh Cl2 v kh O2. (6). Dung dch KMnO4 v kh SO2. (2). Kh H2S v kh SO2. (7). Hg v S. (3). Kh H2S v dung dch Pb(NO3)2. (8). Kh CO2 v dung dch NaClO. (4). Kh Cl2 v dung dch NaOH. (9). CuS v dung dch HCl. (5). Kh NH3 v dung dch AlCl3. (10). Dung dch AgNO3 v dung dch Fe(NO3)2. S cp cht xy ra phn ng ha hc nhit thng l A. 8 B. 7 C. 9 D. 10

II. Phn ring( 10 cu) Th sinh c chn lm 1 trong 2 phn ( phn I hoc phn II )

Phn I: Theo chng trnh Chun ( t cu {} n cu {}) Cu 41: un 1 mol hn hp C2H5OH v C4H9OH (t l mol tng ng l 3:2) vi H2SO4 c 140oC thu c m gam ete, bit hiu sut phn ng ca C2H5OH l 60% v ca C4H9OH l 40% . Gi tr ca m l

A. 19,04 gam B. 53,76 gam C. 28,4 gam D. 23,72 gam

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Cu 42: Cho s sau: C4H8O2 (X) NaOHY 2 , , , 2 6oO xt NaOH NaOH CaO tZ T C H . X c

CTCT: A. C2H5COOCH(CH3)2 B. CH3COOCH2CH3 C. HCOOCH2CH2CH3 D. CH3CH2CH2COOH

Cu 43: Dy gm cc kim loi u tc dng c vi dung dch FeCl3 l: A. Fe, Mg, Cu, Ag, Al B. Au, Cu, Al, Mg, Zn C. Fe, Zn, Cu, Al, Mg D. Cu, Ag, Au, Mg, Fe

Cu 44: Cho phng trnh ho hc: FeSO4 + KMnO4 + KHSO4 Fe2(SO4)3 + MnSO4 + K2SO4 + H2O. Tng h s (s nguyn t, ti gin) ca cc cht phn ng c trong phng trnh l: A. 48 B. 54 C. 52 D. 28

Cu 45: Cho 29 gam hn hp gm Al, Cu, Ag tc dng va vi 950 ml dung dch HNO3 nng a mol/lt, thu c dung dch cha 98,2 gam mui v 5,6 lt hn hp X gm NO v N2O ( ktc). T khi ca X so vi hidro bng 16,4. Gi tr ca a l:

A. 1,50 M B. 2,50 M C. 1,65 M D. 1,35 M Cu 46: Cho mt s tnh cht: c v ngt (1); tan trong nc (2); tham gia phn ng trng bc (3); ha tan Cu(OH)2 nhit thng (4); lm mt mu dung dch brom (5); b thy phn trong dung dch axit un nng (6); Cc tnh cht ca fructoz l

A. (1); (2); (3); (4). B. (1); (3); (5); (6). C. (2); (3);(4); (5). D. (1); (2);(4); (6). Cu 47: Cho 2 cng thc phn t C4H10O v C4H11N, s ng phn ancol bc 2 v amin bc 2 ln lt l

A. 1 v 1. B. 1 v 3. C. 4 v 1. D. 4 v 8. Cu 48: Cho 4 hp cht thm A, B, C, D c nhit si tng ng nh sau: 80; 132,1; 181,2;184,40C. Cng thc A, B, C, D tng ng l :

A. C6H6, C6H5NH2, C6H5OH, C6H5Cl B. C6H6, C6H5Cl, C6H5OH, C6H5NH2

C. C6H5Cl, C6H6, C6H5NH2, C6H5OH D. C6H6, C6H5Cl, C6H5NH2, C6H5OH Cu 49: Nung 44 gam hn hp X gm Cu v Cu(NO3)2 trong bnh kn cho n khi cc phn ng xy ra hon ton thu c cht rn Y. Cht rn Y phn ng va vi 600 ml dung dch H2SO4 0,5 M v thy Y tan ht. Khi lng Cu v Cu(NO3)2 c trong hn hp X l :

A. 12,4 g Cu; 31,6 g Cu(NO3)2 B. 8,8 g Cu; 35,2 g Cu(NO3)2 C. 6,4 g Cu; 37,6 g Cu(NO3)2 D. 9,6 g Cu; 34,4 g Cu(NO3)2

Cu 50: nhn bit cc kh: CO2, SO2, H2S, N2 cn dng cc dung dch: A. Nc brom v Ca(OH)2 B. NaOH v Ca(OH)2 C. KMnO4 v NaOH D. Nc brom v NaOH Phn II: Theo chng trnh nng cao

Cu 51: thc hin s chuyn ho sau: axit axetic axit cloaxetic glyxin. Cn thm cc cht phn ng

A. H2 v NH3. B. Cl2 v NH3. C. Cl2 v amin. D. HCl v mui amoni. Cu 52: Hn hp X gm 2 axit cacboxylic n chc hn km nhau mt nguyn t cacbon trong phn t. t chy hon ton 0,1 mol hn hp X cn dng 0,24 mol O2 thu c 0,24 mol CO2 v m gam nc. La chn cng thc ca 2 axit?

A. axit axetic v axit propionic B. axit axetic v axit acrylic C. axit fomic v axit axetic D. axit acrylic v axit metacrylic

Cu 53: Trong 1 lt dung dch CH3COOH 0,01M c tng s phn t cha phn li v ion l: 6,26.1021 Bit s Avogaro: 6,02.1023. in li ca CH3COOH bng:

A. 3% B. 1,34% C. 4% D. 1% Cu 54: Cho cc phn ng sau:

(1) Cu(NO3)2 0t (2) H2NCH2COOH + HNO2

(3) NH3 + CuO 0t (4) NH4NO2

0t

(5) C6H5NH2 + HNO2 )(HCl 050 (6) (NH4)2CO3

0t S phn ng thu c N2 l

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A. 1, 2, 3. B. 2, 3, 4. C. 4, 5, 6. D. 3, 4, 5. Cu 55: Ho tan mt oxit kim loi M(c ho tr III) trong mt lng va dung dch H2SO4 25%, sau phn ng thu c dung dch mui c nng 29,5181%. Cng thc oxit l

A. Fe2O3. B. Cr2O3. C. Al2O3. D. Ni2O3. Cu 56: phn bit SO2 v SO3 (hi) bng phn ng trao i ta c th dng cht no sau y?

A. Dd BaCl2 B. dd Br2 C. Dd Ba(OH)2 D. Dd KMnO4 Cu 57: Cho cc cht sau: C2H5OH, C6H5OH, C6H5NH2, dung dch C6H5ONa, dung dch NaOH, dung dch CH3COOH, dung dch HCl. Cho tng cp cht tc dng vi nhau iu kin thch hp, s cp cht c phn ng xy ra l

A. 12 B. 8 C. 10 D. 9 Cu 58: Phenol (C6H5-OH) tc dng c vi nhng cht no trong cc cht sau: (1) Na ; (2) NaOH ; (3) HCl ; (4) NaHCO3 ; (5) dd Br2 ; (6)CH3COOH; (7) HCHO; (8)(CH3CO)2O

A. Tt c cc cht B. (1),(2),(3),(6) C. (1),(2),(5),(7),(8) D. (1),(2),(5),(6),(7) Cu 59: Cho 3 20 0/ /1,5 ; 0,14Au Au Sn SnE V E V . Phn ng xy ra khi pin hot ng v sut in ng ca pin l:

A. 2 3 03 2 3 2 ; 1,64pinSn Au Au Sn E V B. 3 2 03 2 2 3 ; 1, 46pinSn Au Au Sn E V

C. 3 2 03 2 2 3 ; 1,64pinSn Au Au Sn E V

D. 2 3 03 2 2 3 ; 1,36pinSn Au Au Sn E V

Cu 60: Trong cc cht sau: dung dch NaOH, C2H5OH, et xng, dung dch [Cu(NH3)4](OH)2. S cht ho tan xenluloz l

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

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