151. t chy hon ton hn hp A gm hai hirocacbon k tip nhau trong dy ng ng, thu c 20,16 lt CO2 (ktc) v 20,7 gam H2O. Cng thc phn t hai cht trong hn hp A l: b) C2H4, C3H6 a) CH4, C2H6 c) C3H4, C4H6 d) C3H8, C4H10 (H = 1; O = 16) 152. t chy hon ton a mol hirocacbon A, thu c tng s mol CO2 v H2O l 4a mol. A l: a) ng ng axetilen b) Etilen c) Parafin d) Propilen (C = 12; H = 1) 153. ehirat ha ru A bng cch un nng A vi H2SO4 m c khong nhit 170-180C, thu c cht hu c l mt anken duy nht. A c cng thc dng no? a) CnH2n + 2O b) CnH2n + 1OH c) CnH2n + 1CH2OH d) CxHyCH2OH 154. X l mt ru m khi t chy ru ny to s mol H2O > s mol CO2. X l: a) Ru n chc no mch h b) Ru a chc no mch h c) Ru no mch h d) Tt c u sai 155. A l mt cht hu c mch h, cha mt loi nhm chc. A tc dng c kim loi kim to kh hiro, nhng khng tc dng c dung dch kim. Khi lm bay hi ht 3,68 gam A th thu c th tch hi bng th tch ca 1,04 gam kh axetilen o trong cng iu kin v nhit v p sut. A l: a) Etyleglicol b) Glixerin c) Ru tert-butylic d) Ru neopentylic (C = 12; H = 1; O = 16) 156. Sn phm chnh ca s ehirat ha 2-metylpentanol-3 l cht no? a) 2-Metylpenten-2 (2-Metylpent-2-en) b) 4-Metylpenten-2 c) 3-Metylpenten-2 d) 2-Metylpenten-1 157. X l mt ru, khi t chy X thu c a mol CO2 v b mol H2O. t T =a/b. X thuc loi ru no? Bit rng tr s T tng dn i vi cc cht ng ng ca X c khi lng phn t tng dn. a) X l ru n chc no mch h, CnH2n+1OH b) X l ru thm, cha mt nhn thm c) X l ru c cng thc dng CnH2n+ 2Ox hay CnH2n+2-x(OH)x d) X l ru a chc hay n chc c mt vng, no 158. X l mt cht hu c c to bi ba nguyn t l C, H v O. t chy 1 mol X thu c 8 mol CO2 v 4 mol H2O. T khi hi ca X so vi metan bng 9,5. X thuc chc ha hc no trong cc chc di y? Bit rng X c cha nhn thm trong phn t a) Axit hu c b) Ete

c) Ru thm (C = 12; H = 1; O = 16)

d) Phenol

159. Axit axetic tc dng c vi cht no di y? a) Canxi cacbonat b) Natri phenolat c) Natri etylat d) C (a), (b) v (c) 160. Hai cht A, B u c to bi ba nguyn t C, H, O. t chy A, cng nh B u to CO2 v H2O c t l khi lng nh nhau, mCO2 : mH2O = 11 : 6. T A c th iu ch B qua hai giai on:

a) A: C2H5OH; B: HO-CH2-CH2-OH b) b) A: CH3CH2CH2OH; B: CH3CHOHCH2OH c) A: C3H7OH; B: C2H5COOH d) d) C4H8(OH)2; B: C4H6(OH)4 (C = 12; H = 1; O = 16) 161. Nu ch dng nc brom v cc phung tin thch hp, c th nhn bit c my kh trong ba kh ng ring trong cc bnh mt nhn: Etan, Etilen, Axetilen? a) Mt kh, l Etan b) Hai kh c) Ba kh d) Khng th phn bit c 162. Hn hp A gm 0,1 mol acrolein (propenal, anehit acrilic) v 0,3 mol kh hiro. Cho hn hp A qua ng s nung nng c cha Ni lm xc tc, thu c hn hp B gm bn cht, l propanal, propanol-1, propenal v hiro. T khi hi ca hn hp B so vi metan bng 1,55. S mol H2 trong hn hp B bng bao nhiu? a) 0,05 b) 0,10 c) 0,15 d) 0,20 (C = 12; H = 1; O = 16) 163. Khi lng ring ca mt kh iu kin tiu chun bng 1,875 gam/lt. Khi lng ca 1 mol kh ny l: a) 42 vC b) 54,375 gam c) 1,875 gam d) Tt c u sai 164. Kh no khng c mi? a) Metan c) Hiro clorua b) Amoniac d) Ozon

165. Cn ly bao nhiu lt mi kh etan v propan em trn thu c 4 lt hn hp kh K m t khi ca K so vi hiro bng 19,375? a) Mi kh ly 2 lt b) 1,5 lt etan; 2,5 lt propan c) 2,5 lt etan; 1,5 lt propan d) 1 lt etan; 3 lt propan (C = 12; H = 1)

166. Cho 19,5 gam benzen tc dng vi 48 gam brom (lng), c bt st lm xc tc, thu c 27,475 gam brom benzen. Hiu sut ca phn ng brom ha benzen trn bng bao nhiu? a) 40% b) 50% c) 60% d) 70% (C = 12; H = 1; Br = 80) 167. Xem ba cht: (I): CH3(CH2)3CH3; (II): CH3CH2CH(CH3)2; (III): C(CH3)4. Th t nhit si tng dn ca ba cht trn l: a) (I) < (II) < (III) b) (II) < (III) < (I) c) (III) < (II) < (I) d) (III) < (I) < (II) 168. Mt axit yu c nng 0,1M, c in ly (phn trm phn ly ion) l 5,75%. Hng s phn ly ion ca axit ny bng bao nhiu? a) 3,3.10-3 b) 3,5.10-4 -5 c) 4,2.10 d) 3,3.10-5 169. Polime

l sn phm trng hp hay ng trng hp ca: a) C9H18 c) C4H8 v C5H8 b) Penten vi Butaien-1,3 d) Isobutylen v isopren

170. t chy hon ton hn hp hai amin n chc no mch h ng ng k tip bng oxi, thu c 16,72 gam CO2 v 2,8 lt kh nit (ktc). Cng thc hai amin l: a) C2H5NH2; C3H7NH2 b) Metylamin; Etylamin c) C3H9N; C4H11N d) C4H11N; C5H13N (C = 12; O = 16) 171. Xt cc cht: (I): Amoniac; (II): Anilin; (III): Metylamin; (IV): imetylamin; (V): iphenylamin; (VI): Nc mnh tnh baz cc cht tng dn nh sau: a) (VI) < (I) < (III) < (IV) < (II) < (V) b) (V) < (II) < (VI) < (I) < (III) < (IV) c) (VI) < (V) < (II) < (I) < (III) (I); (III) > (IV); (VI) > (V) ; (VIII) > (VII) b) (II) > (I); (III) > (IV); (VI) > (V) ; (VII) > (VIII) c) (I) > (II); (IV) > (III); (VI) > (V); (VIII) > (VII)

d) (II) > (I);

(III) > (IV);

(V) > (VI);

(VII) > (VIII)

232. Thc hin phn ng cracking m gam isobutan, thu c hn hp A gm cc hirocacbon. Dn hn hp A qua bnh nc brom c ha tan 6,4 gam Brom. Nc brom mt mu ht, c 4,704 lt hn hp kh B (ktc) gm cc hirocacbon thot ra. T khi hi B so vi hiro bng 117/7 Tr s ca m l: a) 8,7 gam b) 5,8 gam c) 6,96 gam d) 10,44 gam (C = 12; H = 1; Br = 80) 233. Hn hp A gm hai hirocacbon ng ng lin tip. 12,9 gam hn hp kh A chim th tch bng th tch ca 14 gam kh nit o trong cng iu kin v nhit v p sut. Phn trm th tch mi kh trong hn hp A l: a) 50%; 50% b) 40%; 60% c) 30%; 70% d) 20%; 80% (C = 12; H = 1; N = 14) 234 Hn hp X gm hai cht hu c ng phn. t chy ht 11,8 gam hn hp X, cn dng 7,84 lt O2 (ktc). Sn phm chy ch gm CO2 v H2O c t l s mol l . Cng thc thc nghim ca mi cht trong hn hp X l: a) (C2H3)n b) (C2H3O2)n c) (C2H3O)n d) (C4H6O)n (C = 12; H = 1; O = 16) 235. Hn hp A cha hai cht hu c u cha mt loi nhm chc m mi cht u tc dng c vi cacbonat to kh CO2. 0,25 mol hn hp A tc dng va vi 100 ml dung dch KOH 3,8M. t chy ht 0,25 mol hn hp A thu c 16,72 gam CO2. Khi lng mi cht trong 0,25 mol hn hp A l: a) 10,8 gam; 11,7 gam b) 7,2 gam; 9,62 gam c) 3,84 gam; 8,06 gam d) 5,52 gam; 11,70 gam (C = 12; H = 1; O = 16) 236. S tn t n (kh ) cha 95% CaC2 cn dng iu ch 5 tn axit axetic, hiu sut 80% l: a) Khong 7,02 tn b) Khong 6,67 tn c) Khong 4,49 tn d) Khong 8,5 tn (Ca = 40; C = 12; H = 1; O = 16) 237. em trng hp 10 mol vinyl axetat, thu c 688 gam nha polivinylaxetat (PVAc). Hiu sut qu trnh trng hp l bao nhiu? a) 100% b) 90% c) 80% d) 70% (C = 12; H = 1; O = 16) 238. Trong 1 lt dung dch HCOOH 0,1M 25C c cha 5,77.1022 phn t HCOOH khng phn ly ion. in ly (phn trm phn ly ion) ca dung dch axit fomic 0,1M 25C bng bao nhiu?

a) 1,3%

b) 4,2%

c) 2,1%

d) 3,4%

239. Cht no khng c coi l este? b) C3H5(ONO2)3 a) CH3Cl c) HCOOCH2CH3 d) CH3OCH2CH2OC2H5 240. C bao nhiu triglixerit (este cha ba nhm chc este ca glixerin) vi hn hp ba axit bo: axit panmitic, axit stearic v axit oleic, trong mi triglixerit u c cha ba gc axit cho trn? a) 2 b) 3 c) 4 d) 5 241. Gi s mt cht bo c cng thc: Mun iu ch 20 kg x phng t cht bo ny th cn dng bao nhiu kg cht bo ny tc dng vi dung dch xt? Coi phn ng xy ra hon ton. a) 19,37 kg cht bo b) 21,5 kg c) 25,8 kg d) Mt tr s khc (C= 12; H = 1; O = 16; Na = 23) 242. A l mt amin n chc no mch h. t chy A thu uc nit n cht, 4,48 lt CO2 (ktc) v 5,4 gam H2O. A c th l amin no trong cc amin cho di y? a) Isopropylamin b) Trietylamin c) imetylamin d) ietylamin (H = 1; O = 16) 243. Fomalin (Formalin) hay fomol (formol) l dung dch c to ra do ha tan fomanehit trong nc. Dung dch ny c tnh st trng v lm ng t cht m nn c dng bo qun cc mu vt ng vt. Mt dung dch fomalin c khi lng 2 gam, cho tc dng hon ton vi lng d dung dch AgNO3 trong NH3, thu c 8,64 gam Ag. Nng phn trm ca dung dch fomalin ny bng bao nhiu? a) 40% b) 38% c)30% d) 25% (C = 12; H = 1; O = 16; Ag = 108) 244. Khi cho isopentan tc dng vi Cl2, vi s hin din ca nh sng, theo t l s mol 1 : 1, th trn l thuyt s thu c ti a bao nhiu cht l sn phm hu c? a) 1 b) 5 c) 4 d) 3 245. Thc hin phn ng ete ha hn hp A gm hai ru n chc, thu c hn hp ba ete. em t chy mt ete th thu c 6,72 lt CO2 (ktc) v 7,2 gam H2O. Hai ru trong A l: a) Hai ru no mch h b) CH3OH v CH3CH2OH c) C2H5OH v C3H7OH d) CH3OH v CH2=CH-CH2OH 246. A l mt cht hu c cha mt loi nhm chc. A cho c phn ng trng gng v tc dng vi vi thy c si bt kh. iu no di y khng ng i vi A: a) Cng thc n gin ca A cng l cng thc phn t ca A

b) A l mt hp cht hu c n chc c) Dung dch A tc dng Cu(OH)2 to dung dch c mu xanh lam d) T khi hi ca A ln hn 1,6 (C = 12; H = 1; O = 16) 247. A l mt hirocacbon mch h. T khi hi ca A so vi metan bng 5,375. S ng phn ca A c cha cacbon bc ba trong phn t l: a) 2 b) 3 c) 4 d) 5 (C = 12; H = 1) 248. Trong cc cng thc nghim (cng thc nguyn): (CH2O)n; (CHO2)n; (CH3Cl)n; (CHBr2)n; (C2H6O)n; (CHO)n; (CH5N)n th cng thc no m cng thc phn t ca n ch c th l cng n gin ca n? b) (CH2O)n; (CH3Cl)n; (C2H6O)n a) (CH3Cl)n; (C2H6O)n c) (CH3Cl)n; (CHO)n; (CHBr2)n d) (C2H6O)n; ; (CH3Cl)n; (CH5N)n 249. Chn cch din t ng v gc hirocacbon: a) c cng thc tng qut CnH2n + 2 2k x vi x l s nguyn t H mt, cng cho bit n c ha tr x b) l tp hp cc nguyn t C v H c to ra do mt hirocacbon mt mt nguyn t H hay mt s nguyn t H m c, n c cng thc tng qut CnH2n + 1 nh CH3; C2H5 c) l gc cha C, H nh CH3, CH2=CH, mt nguyn t H d) c (a), (b) v (c) 250. a) b) c) d) c to ra do mt hirocacbon mt

Mt cht hu c A c cng thc tng qut dng CnH2nO th A c th l: Anehit n chc khng no Ru hay ete n chc no mch h Xeton n chc no mch h Phenol n chc

251. T isopentan nu mt 1 nguyn t H th c th to bao nhiu gc hirocacbon ha tr 1? a) 3 gc b) 4 gc c) 5 gc d) 2 gc 252. Anehit th hin tnh oxi ha khi tc dng vi tc cht no? a) O2/Mn2+ b) Dung dch AgNO3/NH3 c) Cu(OH)2/OH , t d) H2/Ni, t 253. Anehit th hin tnh kh khi tc dng vi tc cht no? a) Dung dch bo ha NaHSO3 b) H2/Ni, t c) Dung dch AgNO3 trong NH3 d) C (a), (b), (c) v anehit c tnh kh c trng

254. phn bit nhanh ba cht lng khng mu: Axit metacrilic, Axit fomic, Phenol, dng c thuc th no di y? a) Nc brom b) Thuc th Tollens (Dung dch AgNO3/NH3) c) Qu tm d) CaCO3 255. Hn hp A gm hai ankin. Nu t chy ht m gam hn hp A, ri cho sn phm chy hp th vo bnh ng nc vi d th khi lng bnh tng 27,24 gam v trong bnh c 48 gam kt ta. Khi lng brom cn dng phn ng cng va m gam hn hp A l: a) 22,4 gam b) 44,8 gam c) 51,2 gam d) 41,6 gam (C = 12; Ca = 40; O = 16; H = 1; Br = 80) 256. Cng thc thc nghim (cng thc nguyn) ca mt anehit no mch h A l (C4H5O2)n. Cng thc c mang nhm chc ca A l: a) C2H3(CHO)2 b) C6H9(CHO)6 c) C4H6(CHO)4 d) C8H12(CHO)8 257. A l mt cht hu c cha mt loi nhm chc. A khng tc dng kim loi kim. t chy a mol A thu c 4a mol CO2 v 3a mol H2O. a mol A tc dng va dung dch c ha tan 2a mol NaOH, thu c mt mui v mt ru. A l: a) Este ca axit oxalic b) Este ca etylenglicol c) Este a chc hai nhm chc este d) (a) hoc (b) 258. A l mt este c cng thc thc nghim (C3H5O2)n. Mt mol A tc dng va hai mol KOH trong dung dch, to mt mui v hai ru hn km nhau mt nguyn t cacbon trong phn t. A l: a) Metyl etyl malonat b) Metyl Vinyl malonat c) Vinyl alyl oxalat d) Metyl etyl aipat 259. Hai cht X, Y c to bi ba nguyn t C, H, O. T khi hi ca mi cht so vi heli u bng 18,5. C hai cht u tc dng c vi dung dch kim v u cho c phn ng trng bc. Hai cht c th l: b) HO-CH2CH2CHO; HOCCH2COOH a) HOOC-CHO; HCOOCH=CH2 c) HCOOCH2CH3; HOC-COOH d) Axit acrilic; Etyl fomiat (C = 12; H = 1; O = 16; He = 4) 260. A l cht hu c c thnh phn nguyn t l C, H, O v Cl. Khi lng mol phn t ca A l 122,5 gam. T l s mol ca C, H, O, Cl ln lt l 4 : 7 : 2 : 1. em thy phn A trong dung dch xt th thu c hai cht c th cho c phn ng trng gng. A l: a) HCOOCH2CH(Cl)CHO b) HCOOCH=CH2CH2Cl d) HCOO-CH(Cl)CH2CH3 c) HOC-CH2CH(Cl)OOCH

261. A l mt este c cng thc phn t C16H14O4. Mt mol A tc dng c vi bn mol NaOH. Mui natri thu c sau phn ng x phng ha nu em t chy ch thu c CO2 v xa. A c cu to i xng. A l: a) Este ca axit sucxinic (HOOCCH2CH2COOH) vi phenol b) Este ca axit malonic (HOOCCH2COOH) vi mt phenol thng v mt Cresol (Metylphenol) c) Este ca axit oxalic vi hai cresol (CH3C6H4OOC-COOC6H4CH3) d) C (a), (b), (c) 262. Cht A c to bi bn nguyn t: C, H, N v O. t chy 1 mol A thu c 3 mol CO2, 0,5 mol N2 v 3,5 mol H2O. T khi hi ca A l 89/29. A tc dng c vi NaOH ln H2SO4. A lm mt mu nc brom. A l: a) Alanin (CH3CH(NH2)COOH b) Axit 3-aminopropannoic c) (a), (b) d) Amoni acrilat (C = 12; H = 1; O = 16; N = 14) 263. Hn hp A gm hai ankin. Cho 1,32 gam hn hp A lm mt mu va 400 gam dung dch Br2 3,2% do c s to sn phm cng dn xut tetrabrom. Hn hp A: a) gm axetilen v metyl axetilen b) gm C3H4 v C4H6 c) gm C2H2 v C4H6 d) phi c axetilen (Br = 80; C = 12; H = 1) 264. Phn ng x phng ha l: a) Phn ng iu ch x phng b) Phn ng cho cht bo nu vi dung dch xt c) Phn ng thy phn este trong dung dch kim d) (a), (b) 265. Cho isobutan phn ng vi Br2 nguyn cht, theo t l s mol 1 : 1, hin din nh sng, un nng 127C, thu c sn phm hu c gm: a) hn hp isobutyl bromua v tert-butyl bromua vi t l s mol xp x nhau b) ch yu l tert-butyl bromua c) metan; 1,2-ibrom propan d) hn hp gm isobutyl bromua, tert-butyl bromua v isobutan cha phn ng ht 266. A l mt hirocacbon. A tc dng brom to B l mt dn xut brom. T khi hi ca B so vi metan bng 11,75. A c th l: a) C2H4 b) C2H6 c) C8H12 d) (a), (b) (C = 12; H = 1; Br = 80) 267. A l mt cht hu c cha mt loi nhm chc, A khng tc dng vi dung dch kim. A cho c phn ng trng gng. Hi ca 8,6 gam A c cng th tch vi 2,8 gam kh nit o trong cng iu kin v nhit v p sut. A l: b) Pentanal a) HOC-C2H4-CHO c) (a), (b) d) Benzanehit (C = 12; H = 1; O = 16; N = 14)

268. un nng hn hp A gm: 0,1 mol axeton; 0,08 mol acrolein; 0,06 mol isopren v 0,32 mol hiro c Ni lm xc tc, thu c hn hp cc kh v hi B. T khi hi ca B l 375/203 . Hiu sut H2 tham gia phn ng cng l: a) 87,5% b) 93,75% c) 80% d) 75,6% (C = 12; H = 1; O = 16) 269. S oxi ha ca N trong nitrobenzen v anilin ln lt l: a) +4; -2 b) +3; -3 c) +2; -3 d) Tt c u khng ph hp 270. Tr s hng s phn ly ion Kb ca metylamin, imetylamin v trimetylamin ln lt l: 4,4.10-4; 9,6.10-4; 7,4.10-5. mnh tnh baz ca ba cht ny tng dn l: a) Metylamin < imetylamin < Trimetylamin b) Trimetylamin < imetylamin < Metylamin c) Trimetylamin < Metylamin < imetylamin d) imetylamin < Metylamin < Trimetylamin 271. Loi hp cht hu c no tc dng c vi dung dch kim: a) Axit hu c; Phenol; Ru a chc c cha hai nhm OH lin kt hai nguyn t cacbon cnh nhau b) Este; Dn xut halogen; Mui ca axit hu c c) Xeton; Anehit; Ete; Dn xut halogen d) Axit hu c; Phenol; Este; Dn xut halogen 272. Trng ngng m gam glixin (axit aminoetanoic), hiu sut 80%, thu c 68,4 gam polime v 21,6 gam nc. Tr s ca m l: a) 112,5 gam b) 72 gam c) 90 gam d) 85,5 gam 273. Thc hin phn ng trng gng 36 gam dung dch glucoz 10% vi lng d dung dch bc nitrat trong amoniac, nu hiu sut phn ng 100% th khi lng bc kim loi thu c l: a) 33,33 gam b) 4,32 gam c) 8,64 gam d) 2,16 gam (C = 12; H = 1; O = 16; Ag = 108) 274. A l mt -amino axit. Cho bit 1 mol A phn ng va vi 1 mol HCl, hm lng Clo c trong mui thu c l 19,346%. Cng thc ca A l: b) CH3(NH2)CH2COOH a) CH3CH(NH2)COOH c) HOOCCH2CH2CH(NH2)COOH d) HOOCCH2CH(NH2)CH2COOH (C= 12; H = 1; O = 16; Cl = 15) 275. Hn hp A gm hai amino axit no mch h, ng ng k tip, c cha mt nhm amino v mt nhm chc axit trong phn t. Ly 23,9 gam hn hp A cho tc dng

vi 100 ml dung dch HCl 3,5M (c d), c dung dch D. tc dng ht cc cht trong dung dch D cn dng 650 ml dung dch NaOH 1M. Cng thc hai cht trong hn hp A l: a) H2NCH2COOH; CH3CH(NH2)COOH b) CH3CH(NH2)COOH; CH3CH2CH(NH2)COOH c) CH3CH2CH(NH2)COOH; CH3CH2CH2CH(NH2)COOH d) CH3CH2CH2CH(NH2)COOH; CH3CH2CH2CH2CH(NH2)COOH (C = 12; H = 1; O = 16) 276. A l mt hp cht hu c. t chy mt lng A thu c 8,96 lt CO2 (ktc) v 5,4 gam H2O. Nu cho a mol A tc dng ht vi NaHCO3 th c to a mol kh CO2, cn nu cho a mol A tc dng ht vi Kali kim loi cng c to a mol kh H2. Cng thc ca A l: b) HOCH2COCH2COOH a) HOCH2CH2CH2COOH c) HOOCCH2CH2COOH d) HOCH2CH2OCH2COOH (C = 12; H = 1; O = 16) 277. X v Y hai cht hu c mch h ng phn, khi chy ch to CO2 v nc c s mol bng nhau. X lm mt mu nc brom. X cng hiro thu c ru n chc. t chy 1 mol X cn dng 5,5 mol kh oxi. Cng thc ca X v Y l: a) C3H6O b) CH2=CHCH2CH2OH c) CH3CH=CHCH2OH d) CH2=CHCHO 278. S ng phn n chc ca C4H8O2 l: a) 6 b) 5 c) 7 d) 4

279. Cng thc phn t ca este c to bi axit benzoic v ruu benzylic c dng l: a) CnH2n -18O2 b) CnH2n 20O2 c) CnH2n 14O 2 d) CnH 2n 16O2 280. Hn hp A gm hai anehit n chc no mch h. t chy m gam hn hp A thu c 22,88 gam CO2. Cng m gam hn hp A phn ng va vi 4,032 lt H2 (ktc) (c Ni lm xc tc, un nng), thu c hn hp hai ru. t chy ht lng ru ny ri cho sn phm chy hp th vo bnh ng P2O5 lng d. Khi lng bnh P2O5 tng t gam. Cc phn ng xy ra hon ton. Tr s ca t l bao nhiu? a) 35,48 gam b) 12,6 gam c) 22,88 gam d) Mt gi tr khc (C = 12; H = 1; O = 16) 281. X l mt xeton n chc no mch h. Mt th tch hi X c cng khi lng vi 2,15 th tch kh metylaxetilen (cc th tch hi, kh o trong cng iu kin v nhit v p sut). X c bao nhiu cng thc cu to ph hp vi d kin ny? a) 6 b) 5 c) 4 d) 3 (C = 12; H = 1; O = 16)

282. di lin kt gia C vi C trong cc phn t: Etan, Etilen, Axetilen v Benzen theo th t tng dn nh sau: a) Etan < Etilen < Axetilen < Benzen b) Benzen < Axetilen < Etilen < Etan c) Axetilen < Etilen < Benzen < Etan d) Axetilen < Benzen < Etilen < Etan 283. A l cht monome (n phn t) m trng hp th thu c polime (cao phn t) l cupren. Ly 112 lt kh A (ktc) em trng hp, thu c 117 gam cupren. Hiu sut phn ng trng hp ny l: a) 90% b) 80% c) 70% d) 100% (C = 12; H = 1) 284. Hn hp A gm 0,1 mol anehit metacrilic v 0,3 mol kh hiro. Nung nng hn hp A mt thi gian, c mt cht xc tc Ni, thu c hn hp hi B gm hn hp cc ru, cc anehit v hiro. T khi hi ca B so vi He bng 95/12. Hiu sut anehit metacrilic tham gia phn ng cng hiro l: a) 100% b) 80% c) 70% d) 65% (C = 12; H = 1; O = 16; He = 4) 285. Hn hp A gm hai cht hu c ng ng n chc, hn km nhau 14 vC trong phn t. Hn hp A tc dng c kim loi kim cng nh dung dch kim, nhng khng tc dng c NaHCO3. Mt mol hn hp A cng hp va ba mol H2. 3,52 gam hn hp A phn ng va 300ml dung dch NaOH c pH = 13. Cng thc hai cht trong A l: a) Phenol, Cresol b) C7H7OH, C8H9OH c) C8H9OH, C9H11OH d) C9H12O, C10H14O (C = 12; H = 1; O = 16) 286. S mol mi cht c trong 3,52 gam hn hp A cu (285) l: a) 0,015mol; 0,015mol b) 0,018mol; 0,012mol c) 0,01 mol; 0,02mol d) 0,02mol; 0,03mol 287. Etanol l cht hu c nhng ha tan trong nc v hn l do c s to lin kt hiro gia etanol vi nc v gc hirocacbon k nc C2H5- khng ln. Vi t l s mol s mol gia etanol v nc 1 : 1, th c th c 4 cch to lin kt gia hai cht ny trong dung dch: Kiu lin kt no bn nht? a) b) c) d) 288. A l mt cht hu c. t chy 1 mol A to ra 4 mol CO2 v 3 mol H2O. A b thy phn, c xc tc, thu c hai cht hu c u cho c phn ng trng gng. Cng thc ca A l: a) Vinyl fomiat b) HOC-COOCH=CH2 c) HCOOCH=CH-CH3 d) HCOOCH2CH=CH2

289. a) b) c) d)

Nylon-6,6 l mt loi t si tng hp c to ra do: S trng ngng gia axit aipic vi hexametyleniamin S trng ngng gia axit tereptalic vi etylenglicol S trng ngng ca axit -aminoenantoic S Clo ha PVC

290. Capron l mt t si tng hp, c iu ch t monome (cht n phn) l Caprolactam ( ) Mt loi t Capron c khi lng phn t l 14 916 vC. S n v mt xch c trong phn t loi t si ny l: a) 200 b) 150 c) 66 d) 132 (C = 12; H = 1; N = 14; O = 16) 291. A l mt hp cht hu c, khi chy ch to ra CO2 v H2O. Phn trm khi lng ca Oxi trong A l 26,67%. C bao nhiu cng thc cu to ph hp ca A? Bit rng t khi hi ca A nh hn 4 a) 3 b) 4 c) 5 d) 6 (C = 12; H = 1; O = 16) 292. X l mt cht hu c c to bi ba nguyn t l Cacbon, Hiro v Oxi. Thnh phn phn trm khi lng ca oxi l 34,78%. X khng tc dng c kim loi kim. Phn t X cha t hn 3 nguyn t O. X l cht no? a) Axeton b) Metyl fomiat c) imetyl ete d) Mt cht khc (C = 12; H = 1; O = 16) 293. A l mt cht hu c. t chy 1 mol A thu c 4 mol CO2 v 3 mol H2O. Cng 1 mol A tc dng c KHCO3 d to 1 mol CO2, cn cho 1 mol A tc dng ht vi Na th thu c 1 mol kh H2. A khng cho c phn ng trng hp. A l cht no trong cc cht cho di y? b) HO-CH2-CO-CH2-COOH a) HOOC-CH2-CH2-COOH c) HO-CH2-CH2-O-CH2-COOH d) HO-CH2-CHCH-COOH 294. A l mt anehit m khi t chy A to s mol CO2 bng s mol A em t. A l anehit no? a) Etanial b) Axetanehit c) Acrolein d) Fomanehit 295. t chy mt th tch hi axit hu c, thu c hai th tch kh CO2 trong cng iu kin v nhit v p sut. Axit hu c ny c th l cht no sau y? a) Axit fomic b) Axit oxalic c) Axit etanoic d) (b), (c) 296. A l mt hirocacbon. Hi A nng hn kh metan 6,5 ln. Cho 1,04 gam A tc dng vi lng d dung dch AgNO3, thu c 3,18 gam mt cht khng tan c mu vng nht. Hiro ha A, thu c cht 3-etylhexan. A c th l: (C = 12; H = 1; Ag = 108)

297. A l mt cht hu c, khi t chy A to ra CO2, H2O v N2. Phn trm khi lng cc nguyn t trong A l 34,29% C; 6,67% H; 13,33% N. Cng thc phn t ca A cng l cng thc n gin ca n. Cng thc phn t ca A l: b) C3H5NO3 a) C3H7NO3 c) CH3NO2 d) Mt cng thc khc (C = 12; H = 1; N = 14; O = 16) 298. X l mt cht hu c c cng thc n gin l CHO. t chy x mol X thu c s mol CO2 nh hn 6x. X c th c ti a bao nhiu cng thc phn t ph hp vi d kin ny? a) 5 cng thc b) 3 cng thc c) 2 cng thc d) 4 cng thc 299. A l mt cht hu c. t chy 1 mol A thu c 2 mol CO2. A cho c phn ng trng gng. A tc dng c Mg, to ra mt cht kh. Cng thc phn t ca A l: a) C2H2O4 b) C2H4O3 c) C2H2O2 d) C2H2O3 300. Tr s hng s phn ly ion Ka ca cc cht: Phenol; p-Cresol; p-Nitrophenol; 2,4,6Trinitrophenol (Axit picric); Glixerin l: 7.10-15; 6,7.10-11; 1,28.10-10; 7.10-8; 4,2.10-1. Cho bit nhm metyl (CH3-) y in t, cn nhm nitro (-NO2) rt in t. Hy chn cht c tr s Ka thch hp tng dn cho trn a) Phenol < p-Cresol < p-Nitrophenol < Axit picric < Glixerin b) Glixerin < p-Cresol < Phenol < p-Nitrophenol < Axit picric c) p- Nitrophenol < Axit picric < Phenol < Glixerin < p-Cresol d) Glixerin < p-Nitrophenol < Phenol < p-Cresol < Axit picric 301. em oxi ha 2,76 gam ru etylic bng CuO un nng, thu c dung dch A c cha anehit, axit, ru v nc. Mt na lng dung dch A cho tc dng hon ton vi lng d dung dch AgNO3 trong amoniac, thu c 3,024 gam bc kim loi. Mt na dung dch A cn li trung ha va 10 ml dung dch NaOH 1M. Phn trm khi lng ru etylic b CuO oxi ha l: a) 80% b) 90% c) 95% d) Mt kt qu khc (C = 12; H = 1; O = 16; Ag = 108) 302. A l cht hu c c cng thc nghim (C4H5ClO2)n. T khi hi ca A nh hn 5. Khi cho A tc dng vi dung dch Xt, un nng, th thu c mt mui hu c, mui NaCl v anehit axetic. Cng thc cu to ca A l: a) CH3COOCH(Cl)CH3 b) CH3COOCClCH2 c) ClCH2COOCHCH2 d) Mt cng thc khc 303. A l mt cht hu c mch thng cha mt loi nhm chc m mui natri ca n khi em nung vi vi ti xt th thu c kh metan. B l mt ru mch h m khi cho a mol B tc dng ht vi Na th thu c a/2 mol H2. a mol B lm mt mu va dung dch c ha tan a mol Br2. t a mol B thu c 3a mol CO2. A tc dng B th thu c mt hp cht hu c a chc X. X l cht no? a) CH3COOCH2CH2CH2OOCCH3

b) CH3CH2CH2OOCCH2COOCH2CH2CH3 c) CH3COOCH2CHCHOOCCH3 d) CH2CHCH2OOCCH2COOCH2CHCH2 304. Mt hc sinh ly 0,46 gam Na cho vo 20 gam mt loi gim n (dung dch CH3COOH 4,2%). Sau khi kt thc phn ng, hc sinh ny em c cn dung dch th thu c m gam hn hp cht rn khan. Tr s ca m bng bao nhiu? a) 1,3 gam b) 0,825 gam c) 1,388 gam d) 1,532 gam (Na = 23; C = 12; H = 1; O = 16) 305. Loi ng no c coi l khng c tnh kh? (khng cho c phn ng trng gng, khng tc dng vi dung dch Fehling) a) Glucoz b) Fructoz c) Mantoz d) Saccaroz 306. A l mt este. Phn trm khi lng ca Oxi trong este ny bng 53,33%. Chn ng: a) A khng cho c phn ng trng gng b) T A bng mt phn ng c th iu ru etylic c) A khng c ng phn este d) Tt c u sai (C = 12; H = 1; O = 16) 307. Cho bit phn ng este ha t axit hu c l mt phn ng thun nghch v coi nh khng trao i nhit vi mi trng ngoi (coi nh khng thu nhit, khng ta nhit). Tc cht axit hu c, ru, cng nh sn phm este, nc u dng lng. Dng bin php no tng hiu sut phn ng ny nhm thu c nhiu este? a) Dng cht xc tc thch hp (nh axit H+) v un nng phn ng b) Tng nng ca axit hu c hay ca ru c) Thc hin phn ng p sut cao d) (a), (b) 308. Phn ng este ha gia axit axetic vi ru etylic to etyl axetat v nc c hng s cn bng lin h n nng mol/l ca cc cht trong phn ng lc t trng thi cn bng l Kc = 4. Nu 1 lt dung dch phn ng lc u c cha a mol CH3COOH v a mol CH3CH2OH, th khi phn ng t trng thi cn bng, s thu c bao nhiu mol sn phm trong 1 lt dung dch? a) 2a/3 mol CH3COOCH2CH3; 2a/3 mol H2O b) a/3 mol CH3COOCH2CH3; a/3 mol H2O c) a/2 mol CH3COOCH2CH3; a/2 mol H2O d) 0,25a mol CH3COOCH2CH3; 0,25a mol H2O 309. Hn hp A gm 0,1 mol axit axetic; 0,1 mol axit acrilic v 0,2 mol H2. un nng hn hp A c Ni lm xc tc, thu c hn hp B. T khi hi ca B so vi H2 bng 21,25. Hn hp B lm mt mu va dung dch Brom c ha tan: a) 0,05 mol Br2 b) 0,04 mol Br2

c) 0,03 mol Br2 (C = 12; H = 1; O = 16)

d) 0,02 mol Br2

310. Ly 4,6 gam ru etylic em oxi ha hu hn bng O2, c xc tc thch hp, thu c 6,68 gam hn hp A gm anehit axetic, axit axetic, ru etylic v nc. Lng hn hp A c trung ha va bi 100 ml dung dch NaOH 0,4M. Phn trm ru etylic b oxi ha l bao nhiu? a) 90% b) 85% c) 80% d) 75% (C = 12; H = 1; O = 16) 311. A l mt cht hu c. t chy 1 mol A cn dng 6 mol kh oxi, thu c 6 mol CO2 v 6 mol nc. A cho c phn ng trng gng. A c v ngt hn saccaroz. A l: a) Glucoz b) Mantoz d) Fructoz c) C5H11CHO (C = 12; H = 1; O = 16) 312. Cht no khng c sn trong t nhin? a) Saccaroz b) Mantoz c) Fructoz d) Glucoz 313. em 2 kg glucoz, c ln 10% tp cht, ln men ru, hiu sut 70%. Cho bit etanol c khi lng ring l 0,79 g/ml. Th tch ru 40 c th iu ch c do s ln men trn l: a) Khong 1,58 lt b) Khong 1,85 lt c) Khong 2,04 lt d) Khong 2,50 lt (C = 12; H = 1; O = 16) 314. to c 1 mol glucoz t s quang hp ca cy xanh th phi cn cung cp nng lng l 2 813kJ 6CO2 + 6H2O + 2 813kJ C6H12O6 + 6O2 2 Gi s trong mt pht, 1cm b mt l xanh hp thu nng lng mt tri dng cho s quang hp l 0,2J. Mt cy xanh c din tch l xanh c th hp thu nng lng mt tri l 1m2. Cn thi gian bao lu cy xanh ny to c 36 gam glucoz khi c nng? a) Khong 4 gi 40pht b) Khong 8 gi 20 pht c) Khong 200 pht d) Mt kt qu khc (C = 12; H = 1; O = 16) 315. Vi cng thc phn t C2H5NO2 c th ng vi cc cht nh: Nitro etan (CH3CH2NO2), Glixin (H2NCH2COOH), Etyl nitrit (C2H5ONO, este ca ru etylic vi axit nitr, HNO2); Metyl carbamat (CH3OCONH2); N-Hidroxi acetamid (HO-NHCOCH3). C th nhn bit c Glixin nh da vo: a) Glixin trng thi rn, d ha tan trong nc, c nhit nng chy cao nht b) Ch c Glixin trng thi rn, cc cht khc trng thi lng hay kh c) Dung dch Glixin lm i mu qu tm ha , do trong phn t c cha nhm chc axit (-COOH) d) C (a), (b) v (c)

316. Phn tch nh lng mt cht hu c A c to bi bn nguyn t l C, H, N v O, thu c thnh phn phn trm khi lng cc nguyn t nh sau: 31,44% C; 1,31% H; 18,34% N. Cng thc phn t A cng l cng thc n gin ca n. A l: (C = 12; H = 1; N = 14; O = 16) 317. Tr s cc hng s phn ly ion Ka ca cc axit c sp theo th t tng dn: 4,47.10-5 < 6,46.10-5 < 1,04.10-4 < 3,93.10-4. y l tr s Ka ca bn axit (khng chc sp theo th t sn): Benzoic; p-Nitrobenzoic; p-Etylbenzoic; p-Clobenzoic. Cho bit nhm Etyl y in t, nhm Nitro rt in t mnh hn Clo. Tr s Ka trn ng vi th t axit no sau y? (Ka cng ln, tnh axit cng mnh): a) Axit Benzoic < Axit p- Nitrobenzoic < Axit p-Etylbenzoic < Axit p-Clobenzoic b) Axit p-Nitrobenzoic < Axit p-Clobenzoic < Axit Benzoic < Axit p-Etylbenzoic c) Axit p-Etylbenzoic < Axit Benzoic < Axit Clobenzoic < Axit p-Nitrobenzoic d) Axit Benzoic < Axit p-Etylbenzoic < Axit p-Clobenzoic < Axit p-Nitrobenzoic 318. Ly 97,5 gam benzen em nitro ha, thu c nitrobenzen (hiu sut 80%). em lng nitrobenzen thu c kh bng hiro nguyn t mi sinh (ang sinh) bng cch cho nitrobenzen tc dng vi bt st trong dung dch HCl c d (hiu sut 100%), thu c cht hu c X. Khi lng cht X thu c l: a) 93,00 gam b) 129,50 gam c) 116,25 gam d) 103,60 gam (C = 12; H = 1; N = 14; Cl = 35,5; O = 16) 319. Xt cc cht: (1): Amoniac; (2): Metylamin; (3): imetylamin; (4): Anilin; (5): iphenylamin mnh tnh baz cc cht trn tng dn nh sau: a) (1) < (2) < (3) < (4) < (5) b) (5) < (4) < (3) < (2) < (1) c) (4) < (1) < (2) < (5) < (3) d) (5) < (4) < (1) < (2) < (3) 320. Cht hu c X ng ng ca alylamin c thnh phn phn trm khi lng hiro l 12,94%. Cng thc phn t ca X l: b) C4H9N c) C6H13N d) C5H11N a) C2H5N (C = 12; H = 1; N = 14) 321. A l cht hu c ng ng anilin. t chy a mol A thu c 5,5a mol H2O. S cng thc cu to c th c ca A l: a) 5 b) 7 c) 9 d) Nhiu hn 9 322. Trong mt th nghim cho thy 0,1 mol mt este A tc dng va vi NaOH, thu c mt ru v mt mui. t chy ht lng ru v mui ny th thu c 0,3 mol CO2; 0,4 mol H2O v 0,1 mol Na2CO3. A l: a) Metyl acrilat b) C4H8O2

c) Etylen iaxetat

d) imetyl oxalat

323. A l mt este a chc. T khi hi ca A so vi SO3 bng 3,2. Khi t chy ht 1 mol A th thu c 15 mol CO2 v 6 mol H2O. Cng 1 mol A tc dng va dung dch c ha tan 4 mol NaOH. Nu em nung mt trong cc mui sau phn ng x phng ha A vi vi ti xt, th thu c kh metan. A l cht no? (C = 12; H = 1; O = 16; S = 32) 324. A l mt ru. Hai th th hi bng nhau ca A v toluen (trong cng iu kin v nhit v p sut) c cng khi lng. A l: a) Etylenglicol b) Propylenglycol c) Ru isoamylic d) Propantriol-1,2,3 (C = 12; H = 1; O = 16) 325. A l mt cht hu c trong trong mt loi tri cy chua. em t chy ht m gam cht A cn dng 2,016 lt O2 (ktc), sn phm chy gm 2,688 lt CO2 (ktc) v 1,44 gam H2O. Cng m gam A tc dng ht vi NaHCO3 thu c 0,06 mol CO2, cn nu cho m gam A tc dng ht vi Na th thu c 0,04 mol H2. Cng thc phn t ca A cng l cng thc n gin ca n. A l: a) HOC3H2(COOH)3 b) (HO)2OC4H4(COOH)2 c) HOC3H4(COOH)3 d) (HO)3O2C5H4COOH (C= 12; H = 1; O = 16) 326. Axit xitric (acid citric, c nhiu trong chanh) c hng s phn ly ion Ka1 = 7,1.104 . Nu ch n s phn ly ion ca chc axit th nht th pH ca dung dch axit xitric c nng 0,1M v in ly ca dung dch axit ny bng bao nhiu? a) pH = 2,09; = 8,08% b) pH = 1,83; = 8,5% c) pH = 3,15; = 5,2% d) pH = 2,10; = 7,5% 327. Ngi ta ly 688 gam axit metacrilic tc dng vi 320 gam ru metylic, thu c este vi hiu sut 60%. Nu em lng este ny trng hp to thy tinh hu c (plexiglas), hiu sut 80%, th khi lng polyme thu c s l bao nhiu? a) 480 gam b) 384 gam c) 640 gam d) Mt tr s khc (C = 12; H = 1; O = 16) 328. Clorin l mt loi t si tng hp c to ra do s Clo ha PVC. Mt loi t Clorin c hm lng Clo l 63,964% (phn trm khi lng). Bao nhiu n v mt xch PVC phn ng c vi 1 phn t Cl2 to ra loi t ny? a) 1 n v mt xch b) 2 n v mt xch c) 3 n v mt xch d) 4 n v mt xch (C = 12; H = 1; Cl = 35,5) 329. Trong phn t cc cht: Glucoz, Fructoz, Saccaroz, Mantoz, Tinh bt, Xenluloz u: a) C cha nhm anehit (-CHO)

b) C cha nhm chc xeton (-CO-) c) C cha nhm chc ru (-OH) d) Tt c u khng ng 330. Tt c cc cht m (protein) u c cha: a) Nit (N) b) Cacbon (C) c) Oxi (O) d) (a), (b), (c) 331. Phn ng trng hp, ng trng hp l: a) Phn ng cng b) Phn ng oxi ha kh c) Phn ng th d) Phn ng phn hy 332. p-Xilen l ng ng k tip ca Toluen. y l mt cht lng iu kin thng. T khi ca p-Xilen l 0,861. T khi hi ca p-Xilen v khi lng ring ca hi p-Xilen iu kin tiu chun l: a) 0,861; 4,732g/l b) 3,655; 4,732g/ml c) 3,655; 0,861g/ml d) 3,655; 4,732g/l (C = 12; H = 1) 333. Polyeste l mt loi t si tng hp, n c to ra do s trng ngng (ng trng ngng) gia axit Tereptalic (axit 1,4-Bezenicacboxilic) vi Etylenglicol (Etaniol-1,2). Mt loi t Polyeste c khi lng phn t l 153600. C bao nhiu n v mt xch trong phn t polyme ny? a) 808 n v mt xch b) 800 n v mt xch c) 768 n v mt xch d) 960 n v mt xch (C = 12; H = 1; O = 16) 334. em oxi ha hu hn m gam metanol bng 3,584 lt O2 (ktc) c xc tc thch hp, thu c 14,72 gam hn hp A gm fomanehit, axit fomic, metanol v nc. trung ha lng hn hp A trn cn dng 100ml dung dch NaOH 1M. Phn trm metanol b oxi ha to fomanehit l: a) 40% b) 35% c) 30% d) 25% (C = 12; H = 1; O = 16) 335. A l mt ru n chc. em t chy mt th thch hi A th thu c 5 th tch kh cacbonic trong cng iu kin v nhit v p sut. Trong sn phm chy, th tch kh CO2 nh hn th tch hi nc (cng iu kin). A c cu to i xng. em ehirat ha A th thu c hai hirocacbon ng phn. A l: b) Pentanol-2 a) C5H11OH c) Pentanol-3 d) Ru tert-Amylic 336. Trong mt phn ng este ha, 20,8 gam axit malonic phn ng c vi m gam hn hp hai ru n chc no mch h ng ng lin tip, thu c 34,8 gam hn hp ba este a chc. Hai ru trong hn hp l: a) Metanol; Etanol b) Etanol; Propanol-1

b) C3H7OH; C4H9OH (C = 12; H = 1; O = 16)

d) C4H9OH; C5H11OH

337. Trong mt phn ng este ha, 7,6 gam propylenglycol phn ng c vi hn hp hai axit hu c n chc no mch h ng ng lin tip, thu c 17,68 gam hn hp ba este a chc. Cng thc hai axit hu c tham gia phn ng este ha trn l: a) Axit fomic; Axit axetic b) Axit axetic; Axit Propionic c) C2H5COOH; C3H7COOH d) C3H7COOH; C4H9COOH (C = 12; H = 1; O = 16) 338. Polistiren (nha PS) l mt polime dng rn, mu trng, khng dn in, khng dn nhit. Nha PS c to ra do s trng hp ca stiren. Khi lng polistiren thu c khi em trng hp 10 mol stiren, hiu sut qu trnh trng hp 80%, l: a) 650 gam b) 798 gam c) 832 gam d) 900 gam (C = 12; H = 1) 339. Khi lng phn t ca mt loi t capron bng 14 916 vC. S n v mt xch c trong phn t t capron l bao nhiu? a) 117 b) 150 c) 210 d) 132 (C = 12; H = 1; O = 16; N = 14) 340. Kh etilen lm mt mu tm dung dch thuc tm, to ru a chc v c to ra mt cht rn mu en. H s nguyn nh nht ng trc cht oxi ha, cht kh phn ng ny cn bng l: a) 3; 2 b) 2; 3 c) 5; 2 d) 2; 5 341. T visco, t axetat l: a) Thuc loi t tng hp c) Thuc loi t amit (amid) b) Thuc loi t polieste d) Thuc loi t nhn to

342. Xem s phn ng, mi mi tn l mt phn ng: D cha hai nguyn t Cacbon, E cha mt nguyn t Cacbon trong phn t. A c th l cht no trong cc cht di y? b) HCOO-CH2CH3 a) CH4 c) HCOO-CH2CH2OOCH d) (a), (b), (c) 343. c im cu to ca cc monome cho c phn ng trng ngng l: a) Phi c t nht hai nhm chc trong phn t b) Phi c t nht mt lin kt i C=C trong phn t c) Phi c cha nhm chc c th b ngng t d) C (a), (b), (c) 344. Cht no trong cc cht sau y cho c phn ng trng ngng? (1): HOCH2CH2OH (2): CH2=CH-COOH (3): H2N(CH2)6NH2 (4): CH2=CH-CH=CH2 (5): HOOC-CH2-COOH (6): H2N-CH2-COOH

a) C 6 cht trn c) (1), (3), (5), (6)

b) (2), (4) d) (3), (6)

345. Cht no cho c phn ng trng hp? (1): Isopren (2): Isopentan (3): Axetilen (4): Vinylaxetilen (5): Etylenglicol (6): Axit propionic (7): Vinyl axetat (8): Axit oxalic a) (1), (3), (4), (7) b) (1), (3), (4), (5), (7), (8) c) (1), (4), (7) d) Tt c cc cht trn 346. A l mt cht hu c m khi t chy 0,1 mol A cn 0,9 mol O2. Sn phm chy ch gm CO2 v H2O. Cho hp th sn phm chy vo bnh ng nc vi trong d, khi lng bnh 37,2 gam, trong bnh c to 60 gam kt ta. S ng phn cis, trans mch h c th c ca A l: a) 4 b) 6 c) 8 d) 10 (C = 12; H = 1; Ca = 40; O = 16) 347. Thc hin phn ng cracking 11,2 lt hi isopentan (ktc), thu c hn hp A ch gm cc ankan v anken. Trong hn hp A c cha 7,2 gam mt cht X m khi t chy th thu c 11,2 lt CO2 (ktc) v 10,8 gam H2O. Hiu sut phn ng cracking isopentan l: a) 80% b) 85% c) 90% d) 95% (C = 12; H = 1; O = 16) 348. Cho hn hp A gm 4,48 lt etilen v 6,72 lt hiro, u iu kin tiu chun, i qua ng s ng Ni lm xc tc, un nng, thu c hn hp kh B. Trong hn hp B c 1,4 gam mt cht Y, m khi t chy th to s mol nc bng s mol kh cacbonic. Phn trm th tch mi kh trong hn hp Y l: a) 40%; 40%; 20% b) 41,25%; 15,47%; 43,28% c) 42,86%; 14,28%; 42,86% d) Mt kt qu khc (C= 12; H = 1) 349. T 13,8 gam ru etylic ngi ta iu ch c butaien-1,3 vi hiu sut 80%. Lng hirocacbon ny lm mt mu hon ton vi dung dch nc brom c ha tan 22,4 gam Br2. Lng sn phm cng brom 1,2 v 1,4 thu c bng nhau. Khng cn hirocacbon sau phn ng. S mol cc sn phm cng thu c l: a) 0,06 mol; 0,06 mol b) 0,05 mol; 0,05 mol; 0,02 mol c) 0,04 mol; 0,04 mol; 0,04 mol d) 0,045 mol; 0,045 mol; 0,03 mol (C = 12; H = 1; O = 16; Br = 80) 350. Thc hin phn ng ete ha m gam hn hp A gm hai ru n chc no mch h, hn km nhau mt nhm metylen trong phn t, bng cch cho hn hp A qua H2SO4 m c, un nng 140C. Sau khi kt thc phn ng, thu c 22,7 gam hn hp ba ete. Cho cc kh, hi sau phn ng qua bnh ng P2O5 d, khi lng bnh tng thm 4,5 gam. Cng thc hai ru trong hn hp A l: b) C2H5OH; C3H7OH a) CH3OH; C2H5OH c) C3H7OH; C4H9OH d) C4H9OH; C5H11OH (C = 12; H = 1; O = 16)

351. C s phn ng sau:

Cho bit A, D, F u c to bi cc nguyn t C, H, O v u n chc. Mt th tch hi F khi t chy hon ton to c hai th tch kh CO2 (o cng iu kin T, p). Cc cht A, B l: a) HCOOH; CH3CH2OH b) CH3COOH; C3H4 c) CH2CHCOOH; C3H4 d) HCOOH; C2H2 352. Pht biu no khng ng? a) Vi cng thc mt hirocacbon CxHy th tr s cc tiu ca y l bng 2 b) Tt c ankan u nh hn nc c) Trong cc ng ng ca metan: etan, propan, n-butan th n-butan d ha lng nht d) Hi nc nng hn khng kh p n