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thi K th i hc(2) ( T hi gian lm bi : 90 pht ) S 20 1. Mt anken (c 6 nguyn t C), phn ng vi dung dch KMnO 4, trong mi trng axit, ch cho mt sn phm oxi ha l CH3 3, anken l CO CH A. 2,3-imetyl-2-buten. C. isopren. B. 3-metyl-2-penten. D. trans-3-hexen. 2. Cho phn ng sau: Mg + HNO3 Mg(NO3)2 + NO + NO2 + H2O Nu t l s mol gia NO v NO2 l 2:1, th h s cn bng ti gin ca HNO3 trong phng trnh ho hc l A. 12. B. 30. C. 18. D. 20. 3. in phn dung dch CuSO4 nng 0,5M vi in cc tr trong th thu c 1 gam ng. in lng tiu tn ti thiu l A. 3015 C. B.2870 C. C.1212 C. D.2550 C. 4. C th iu ch bc kim loi t dung dch AgNO3 bng cch A. in phn vi in cc than ch. B. nhit phn. C. in phn vi in cc Au. D. cho tc dng vi kim loi mnh nh canxi. 5. in phn dung dch CuSO4 nng 0,5M vi in cc tr trong th thu c 1gam Cu. Nu dng dng in mt chiu c cng 1A, th thi gian in phn ti thiu l A. 50 pht 15 giy.B. 40 pht 15 giy. C. 0,45 gi. D. 0,65 gi. 6. Phng php thy luyn dng iu ch A. kim loi c tnh kh yu. B. kim loi m ion dng ca n c tnh oxy ha yu. C. kim loi hot ng mnh. D. kim loi c cp oxi ha-kh ng trc Zn2+/Zn. 7. Ha tan m gam hn hp 2 mui cacbonat kim loi ha tr (I) v (II) bng dung dch HCl d thu c dung dch A v V lt kh CO2 (ktc). C cn dung dch A thu c (m+3,3) gam mui khan. Tnh V? A. 2,24 lt. B. 3,72 lt. C. 6,72 lt. D. 8,96 lt. 8. Cho cc cht A (C4H10), B (C4H9Cl), C (C4H10O), D (C4H11N). Nguyn nhn gy ra s tng s lng cc ng phn t A n D l do A. ha tr ca cc nguyn t th tng lm tng th t lin kt trong phn t. B. m in khc nhau ca cc nguyn t. C. cc bon c th to nhiu kiu lin kt khc nhau. D. khi lng phn t khc nhau. 9. A v B l 2 axit cacboxylic n chc. Trn 1,2 gam A vi 5,18 gam B c hn hp X. trung ha ht X cn 90 ml dung dch NaOH 1M. Trn 7,8 gam A vi 1,48 gam B c hn hp Y. trung ha ht Y cn 75 ml dung dch NaOH 2M. Cng thc ca A, B ln lt l A. CH3COOH v C2H3COOH. C. C2H5COOH v CH3COOH. B. C2H3COOH v C2H5COOH. D. CH3COOH v C2H5COOH. C. 9. D.8. 10. S ng phn cu to ca C5H10 l A. 11. B. 10. 11. lm thay i pH ca dung dch (dung mi nc) t 4 thnh 6, th cn pha dung dch vi nc theo t l th tch l A. 1:99. B. 99:1. C. 2:3. D. 3:2. 12. Dung dch c pH = 4 s c nng ion OH bng A. 10 4. B. 4. C. 10 10. D. 104. 13. Khi trn nhng th tch bng nhau ca dung dch HNO3 0,01M v dung dch NaOH 0,03M th thu c dung dch c pH bng A. 9. B. 12,3. C. 13. D.12. 14. Cho cc cht A (C4H10), B (C4H9Cl), C (C4H10O), D (C4H11N). S lng cc ng phn ca A, B, C, D tng ng l A. 2; 4; 6; 8. A. 1. B. 2; 3 ; 5; 7. B. 2. C. 2; 4; 7; 8. C. 3. D. 2; 4; 5; 7. D. 4. 15. S cp ng phn cis-trans ca C5H10 l 16. Phng php no di y thng dng iu ch kim loi phn nhm ph nh Crom, Mangan, St... A. in phn mui nng chy, hoc phn hy nhit hoc khai thc dng kim loi t do. B. Kh bng cc cht kh ha hc hoc kh cc qung sunfua bng Cacbon nhit cao C. Dng kim loi mnh y kim loi yu ra khi dung dch mui. D. in phn dung dch mui. 17. Hn hp X gm hai hirocacbon A, B thuc loi ankan, anken, ankin. t chy hon ton 6,72 lt (ktc) X ri cho tt c sn phm chy hp th hon ton vo bnh ng nc vi trong d, thy khi lng bnh tng thm 46,5 gam v c 75 gam kt ta. X c th gm A. 2 ankan. C. 1 ankan +1 anken. B. 1 ankin +1 anken. D. 1 ankan +1 ankin. 18. Hn hp X gm hai hirocacbon A, B thuc loi ankan, anken, ankin. t chy hon ton 6,72 lt (ktc) kh X c khi lng l m gam, v cho tt c sn phm chy hp th hon ton vo bnh ng nc vi trong d, thy khi lng bnh tng thm 46,5 gam v c 75 gam kt ta. Nu t l khi lng ca A v B l 22:13, th khi lng m (gam) X ly A. 10. B. 9,5. C. 10,5. D.11. 19. Hn hp X gm hai hirocacbon A, B thuc loi ankan, anken, ankin. t chy hon ton 6,72 lt (ktc) kh X c khi lng l m gam, v cho tt c sn phm chy hp th hon ton vo bnh ng nc vi trong d, thy khi lng bnh tng thm 46,5 gam v c 75 gam kt ta. Nu t l khi lng ca A v B l 22:13, th s gam cht A trong m gam X l A. 4,4. B. 4,5. C. 5,6. D.6,6. 20. Nitro ha benzen thu c 2 hp cht nitro X, Y hn km nhau mt nhm NO 2. t chy hon ton 2,3 gam hn hp X, Y thu c CO2, H2O v 0,224 lt N2 (ktc). Cng thc phn t ca X, Y l A. C6H5NO2 v C6H4(NO2)2. C. C6H5NO2 v C6H3(NO2)3. A. aminoaxit c nhm chc axit. B. aminoaxit c nhm chc baz. C. aminoaxit c cu to tinh th ion lng cc. D. aminoaxit va c tnh axit va c tnh baz. B. C6H4(NO2)2 v C6H3(NO2)3. D. khng xc nh c. 21. Aminoaxit iu kin thng l cht rn, kt tinh, tan tt trong nc v 22. Este A c iu ch t aminoaxit B v ru etilic. 2,06 gam A ha hi hon ton chim th tch bng th tch ca 0,56 gam nit cng iu kin. A c cng thc cu to l A. NH2 2 2 CH CH COO 2 3. CH CH B. NH2 2 CH COOCH2 3. CH C. CH3 NH COO 2 3. CH CH D. CH3 COONH 2 3. CH CH 23. Khi lng phn t ca mt loi t capron bng 16950 vC, ca t enang bng 21590 vC. S mt xch trong cng thc phn t ca mi loi t trn ln lt l A. 120 v 160. B.200 v 150. C.150 v 170. D.170 v 180. 24. Khi lng phn t trung bnh ca xenluloz tnh theo .v.C trong si bng l 1750000, trong si gai l 5900000. S mt xch trung bnh trong cng thc phn xenluloz t ca mi loi si tng ng l A. 10802 v 36420. C.32450 v 38740. B. 12500 v 32640. D.16780 v 27900. 25. Cn bao nhiu lt axit H2SO4 (d = 1,84 g/ml) v bao nhiu lt nc ct pha thnh 9 lt dung dch H2SO4 c d = 1,28 g/ml. A. 3 lt v 6 lt. B. 2 lt v 7 lt. C. 6 lt v 3 lt. D. 4 lt v 5 lt. 26. Hin tng quan st c khi cho dung dch nc iot ln lt vo ming chui cn xanh v ming chui chn l A. c hai cho mu xanh lam. B. c hai khng i mu. C. ming chui cn xanh cho mu xanh tm, ming chn khng nh vy. D. ming chui chn cho mu xanh lam, ming xanh khng nh vy. 27. Cho s phn ng sau: But-1-en X Y Z. Bit X, Y, Z u l cc hp cht hu c v l nhng sn phm chnh. Cng thc ca X, Y, Z ln lt l A. CH3CH(Br)CH2CH3, CH3CH(OH)CH2CH3 , CH3CH=CHCH3. B. CH2BrCH2CH2CH3 , CH2(OH)CH2CH2CH3, CH2=CHCH2CH3. C. CH3CH(Br)CH2CH3, CH3CH(OH)CH2CH3 , CH2=CHCH2CH3. D. CH3CH(Br)CH2CH3, CH3CH2CH2CH2(OH), CH2=CHCH2CH3. 28. Cho s phn ng: Xenluloz X Y Z + Y , xt T. Cng thc cu to ca T l A. C2H5COOCH3. B. CH3COOH. C. C2H5COOH. D. CH3COOC2H5. 29. Cn trn theo t l th tch no 2 dung dch NaOH 0,1M vi dung dch NaOH 0,2M c dung dch NaOH 0,15M. Cho rng s trn ln khng thay i th tch. A. 1 : 1. B. 1 : 2. C. 2 : 1. D. 2 : 3. 30. Tin hnh th nghim sau: Cho mt t bt ng kim loi vo ng nghim cha dung dch FeCl3, lc nh ng nghim s quan st thy hin tng no sau y? A. Kt ta St xut hin v dung dch c mu xanh. B. Khng c hin tng g xy ra. C. ng tan v dung dch c mu xanh. D. C kh mu vng lc ca Cl2 thot ra. 31. Cho vo ng nghim 1ml dung dch protit (lng trng trng), tip theo cho 1ml dung dch NaOH c v 1 git dung dch CuSO4 2%, lc nh ng nghim. mu ca dung dch quan st c l A. xanh tm. B. vng. C. en. D. khng c s thay i mu. 32. Cho 3,2 gam Cu tc dng vi 100ml dung dch hn hp HNO 3 0,8M + H2SO4 0,2M, sn phm kh duy nht ca HNO3 l kh NO. S gam mui khan thu c l A. 5,64. B. 7,9. C. 8,84. D. ba kt qu trn u sai. 33. Cho 3,2 gam Cu tc dng vi 100ml dung dch hn hp HNO 3 0,8M + H2SO4 0,2M, sn phm kh duy nht ca HNO3 l kh NO. Th tch (tnh bng lt) kh NO ( ktc) l A. 0,672. B. 0,448. C. 0,224. D. 0,336. 34. Ht nhn nguyn t R c in tch bng +32.10 19C. Nguyn t R thuc A. chu k 3 nhm IIB. C. chu k 4 nhm IIA. B. chu k 3 nhm IIA. D. chu k 4 nhm IIIA. 35. 17,7 gam mt ankylamin cho tc dng vi dung dch FeCl3 d thu c 10,7 gam kt ta. Cng thc ca ankylamin l A. CH3NH2. B. C4H9NH2. C. C3H9N. D. C2H5NH2. 36. Dung dch AlCl3 trong nc b thy phn nu thm vo dung dch cc cht sau y, cht no lm tng cng qu trnh thy phn AlCl3? A. NH4Cl. B. Na2CO3. C. ZnSO4. D. Khng c cht no c. 37. Khi t chy ng ng ca ru n chc ta thy t l s mol tng dn theo s mol cacbon, ru trn thuc dy ng ng A. ru thm. C. ru no. B. ru khng no. D. khng xc nh c. 38. Khi nung nng mnh 25,4 gam hn hp gm kim loi M v mt oxit st phn ng xy ra hon ton, th thu c11,2 gam st v 14,2 gam mt xt ca kim loi M. Hi M l kim loi no? A. Al. B. Cr. C. Mn. D. Zn. 39. Dng giy rp nh sch mnh nhm ri nh mt git dung dch HgCl 2 ln b mt sch mnh nhm. Sau 2 pht, lau kh v mnh nhm trong khng kh. Hin tng quan st c sau cng l A. nhng ht nh li ti mu trng bc ca thy ngn ln trn mnh nhm. B. b mt nhm c mu en. C. nhng si nh nh si ch mu trng xut hin trng nh lng t. D. si bt trn b mt mnh nhm do AlCl3 b thy phn. 40. Cho hi nc i qua than nng c hn hp kh A gm CO2,CO, H2. Ton b lng kh A va kh ht 48 gam Fe2O3 thnh Fe v thu c 10,8 gam H2O. Phn trm th tch CO2 trong hn hp kh A l A. 28,571. B. 14,289. C. 13,235. D. 16,135. 41. C th dng ha cht no di y phn bit ba oxit mu en Cr2O3, FeO, MnO2? A. Dung dch HNO3. B. Dung dch Fe2(SO4)3. C. Dung dch HCl. D. Dung dch NaOH. 42. Ha tan hon ton 11,9 gam hn hp 2 kim loi (Zn, Al) bng dung dch H2SO4 c nng thu c 7,616 lt SO2 (ktc), 0,64 gam S v dung dch X. Tnh khi lng mui trong X. A. 60,3 gam. B. 50,3 gam. C. 72,5 gam. D. 30,3 gam. 43. Tin hnh th nghim sau: nh vi git dung dch H 2S vo ng nghim cha dung dch FeCl3 thy xut hin kt ta. Kt ta l A. Fe. B. S. C. FeS. D. c FeS v S. 44. Trn b mt ca cc h nc vi, hay cc thng nc vi ngoi khng kh, thng c mt lp vng mng. Lp vng ny ch yu l A. canxi. C. canxi cacbonat. D. canxi oxit. B. canxi hiroxit. 45. Trong cc cht sau, cht no khng to lin kt hiro vi nc? A. CH3 3. CH A. 1. A. CH3CH2OH. B. CH3 2 CH OH. B. 2. B. CH3CH2NH2. C. NH3. C. 3. C. H2O. D. HF. D. 4. D. CH3COOH. 46. C bao nhiu kiu lin kt hiro gia cc phn t H2O? 47. Lin kt hiro gia cc phn t no sau y l bn vng nht? 48. Axit flo hiric yu hn axit clohiric v A. flo m in hn clo. B. HF nh hn HCl. C. lin kt hiro ca HF bn hn ca HCl. D. HF phn cc mnh hn HCl. 49. Cc cht H2O, CH3OH, HCHO, HCOOH, C2H5OH. CH3COOH c nhit si tng ng k hiu l s1, s2, s3, s4, s5, s6. Nu xp nhit si tng dn t u n cui th c trt t sau A. s2, s4, s3, s1, s6, s5. C. s1, s2, s3, s4, s5, s6. A. uyra. B. Silumin. B. s3, s2, s5, s1, s4, s6. D. s3, s2, s4, s1, s6, s5. C. Almelec. D. Eletron. 50. Hp kim no di y ca nhm tan hon ton trong dung dch axit clohiric? ... View Full Document

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