Chuyn : Amin Axit amin - PeptitI. nh ngha Cng thc tng qut Tn gi: 1. Khi nim : Khi thay th mt hay nhiu nguyn t hidro trong phn t NH3 bng 1 hay nhiu gchidrocacbon ta c amin . VD: CH3 NH2 ; CH3 NH CH3 . 2. Cng thc . R-NH2 (Amin) ; H2N-R-COOH(Amino axit); H2N-CH-CO--NH-CH-COOH(Peptit) Nng cao : n li CT tng qut : CnH2n + 2 2a x (Chc)x CT tng qut ca amino axit : CnH2n + 2 2a x (NH2)x vi a l s lin kt v x l s nhm chc. T CT trn => CT amin n chc : CnH2n + 1 2a (NH2) => amin n chc no => a = 0: CnH2n + 1 NH2, c 1 lk => a = 1: CnH2n 1NH2 Thay a vo => CT tng ng. CT tng qut ca amino Axit : (H2N)n R (COOH)n : n , n 1 : R l gc hidrocacbon ha tr (n + n) Hoc ( H2N)n CxHy (COOH)n : n , n 1 , x 1 , y + n + n 2x + 2 Amino axit thng gp : Amino axit cha 1 nhm amino (NH2) v mt nhm chc axit (COOH) no mch h : H2N-R-COOH * Bc ca amin bng s nguyn t H trong amin b thay th bi gc hidrocabon Vd: CH3 NH2 (Bc 1), CH3 NH CH3(Bc 2), (CH3)3N (Bc 3) 1/ Tn gi : Tn gc hidrocacbon + amin Vd: CH3 NH CH3 : imetyl amin. 2/ Tnh cht a) Tnh cht ca nhm NH2 * Tnh baz: R-NH2 + H2O => [R-NH3]+OHTc dng vi axit cho mui: R-NH2 + HCl => [R-NH3]+Cl* Tc dng vi HNO2 Amin bo bc I to thnh ancol v kh N2 : R-NH2 + HONO => R-OH + N2 + H2O Amin thm bc I: ArNH2 + HNO2 + HCl => ArN2+Cl hay ArN2Cl Tc dng vi dn xut Halogen R-NH2 + CH3I => R-NHCH3 + HI 1
b) Amino axit c tnh cht ca nhm COOH * Tnh axit: RCH(NH2)COOH + NaOH => RCH(NH2)COONa + H2O * Phn ng este ho: RCH(NH2)COOH + ROH => RCH(NH2)COOR + H2O c) Amino axit c phn ng gia nhm COOH v nhm NH2 To mui ni H2N-CH-COOH => H3N+-CH-COO Phn ng trng ngng ca cc v amino axit to poliamit: nH2N-[CH2]5-COOH => ( NH-[CH2]5-CO )n + nH2O axit - aminocaproic policaproamit d) Protein c phn ng ca nhm peptit CO-NH * Phn ng thu phn: * Phn ng mu: Tc dng vi Cu(OH)2 cho dung dch mu xanh tm. e) Anilin: c phn ng th d dng 3 nguyn t H ca vng benzen(o , p) => kt ta trng (dng nhn bit anilin) Ch cc cht sau : anilin (C6H5NH2) v amino axit thng dng. II) Cc dng bi tp thng gp Dng 1: S ng phn ca amin n : CTPT Tng s ng Bc 1 phn 4 2 8 4 17 8 Bc 2 Bc3
C3H9N 1 1 C4H11N 3 1 C5H13N 6 3 C6H15N 7 C7H9N 5 4 1 0 Vd1: Cho amin no n chc c %N = 23,72%. Tm s ng phn bc 3 ca amin A. 1 B.2 C.3 D.4 PP: amin no n chc => CT : CnH2n+1NH2 M N .100% 14.100% = = 23, 72% Gii ra c n = 3 %N = M amin 14n + 17 CT : C3H7N2 => C ng phn bc 3 l 1 ( Bng trn C3H9N) Dng 2: So snh tnh baz ca cc amin Nguyn tc : Amin cn d i e cha lin kt trn nguyn t Nit nn th hin tnh baz => c trng cho kh nng nhn proton H+ Nhm ankyl c nh hng lm tng mt e nguyn t Nit => lm tng tnh baz. >NH3 2
Nhm phenyl (C6H5-) lm gim mt e trn nguyn t Nit => lm gim tnh baz.< NH3 Lc baz : CnH2n+1NH2 > NH3 > C6H5-NH2 Amin bc 2 > Amin bc 1 Gii thch: Do amin bc 2 (R-NH-R) c hai gc HC nn mt y e vo nguyn t N trung tm ln hn amin bc 1 (R-NH2). Amin cng c nhiu gc ankyl, gc ankyl cng ln => tnh baz cng mnh. gc phenyl => tnh baz cng yu. * V d: So snh tnh baz ca cc hp cht hu c sau: NH3, C2H5NH2, CH3NH2, C6H5NH2, (C6H5)2NH, (C2H5)2NH, C6H5 - CH2NH2 ? (C2H5)2NH>C2H5NH2>CH3NH2>NH3>C6H5>CH2NH2>C6H5NH2>(C6H5)2NH Vd1: Cho cc cht: (1)amoniac, (2)metylamin, (3)anilin, (4)imetylamin. 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). Amoniac : NH3 ; metyamin : CH3NH2 ; anilin : C6H5NH2; imetyl amin : CH3 NH CH3 Da vo tnh cht trn: anilin c vng benzen(gc phenyl) => Tnh baz yu nht, NH3 mc trung gian > C6H5NH2 Amin bc I (CH3NH2) < Amin bc 2 (NH3 NH NH3) => Th t : C6H5NH2 < CH3 < CH3NH2 s chc = 1 Vd: trung ha 50 ml dd amin no,(trong amin c 2 nguyn t Nit)cn 40 ml dd HCl 0,1 M . Tnh CM ca imetyl amin dng l : A.0,08M B.0,04M C.0,02M D.0,06M n Amin c 2 N => amin c s chc = 2 ADCT : n amin = HCl = 0,002 mol 2 => CM amin = 0,04 M Dng 4 : Xc inh s mol ca ca amin nu bit s mol ca CO2 & H2O : Nu bi cha cho amin no, n chc th ta c gi s l amin no, n. Khi t chy n H2O > n CO2 , ta ly : n H2O - nCO2 = 1, 5namin Cch chng minh nh phn hidrocacbon CT amin no n chc : CnH2n+1NH2 3
PT : CnH2n+3N2 + O2 => nCO2 + (n+3/2)H2O + N2 x mol n.x mol (n+3/2).x mol Ta ly n H2O n CO2 = 1,5x = 1,5namin T => n (s C trong amin) hocn
=
n CO2 n a min
=
1,5.n CO2 n H 2O n CO 2
Tng t c CT i vi amin khng no , n chc + C 1 lk , C 2 lk , Chng minh tng t Nu bi cho amin n chc, m khi t chy to ra bit n CO2 v n N2 . th ta c CT sau V amin n chc => c 1 N . p dng LBT nguyn t N => n amin = 2n N 2 n CO2 nCO2 n(n) = M n hoc n = n amin 2n N 2 Vd1: t chy hon ton a mol hh X gm 2 amin no n chc lin tip nhau thu c 5,6 lt CO2 (ktc) v 7,2 g H2O . Gi tr ca a l : A. 0,05 mol B. 0,1 mol C. 0,15 mol D. 0,2 mol Tm CT 2 amin ? (n H2O n CO2 ) p dng CT: n amin = ( i vi amin no n chc) 1,5 = (0,4 0,25)/1,5 = 0,1 mol n CO2 0, 25 = = 2,5 => Amin c CT : CnH2n+1NH2 CT amin : n = n amin 0,1 n = 2 v n = 3 : C2H5NH2 v C3H7NH2 Vd2: Aminoaxit X cha mt nhm chc amin bc nht trong phn t. t chy hon ton mt lng X thu c CO 2 v N2 theo t l th tch l 4 : 1. X c cng thc cu to l: A. H2N CH2 CH2 COOH B. H2N (CH2)3 COOH C. H2N CH2 COOH D. H2N (CH2)4 COOH Da vo p n => amin X ch c 1 N => 2nN2 = namin (BT NT Nito) n CO2 n CO2 4 n= = = 2 => X Ch c 2 C => C M n = n amin 2n N 2 2 Dng 5: tm CTPT ca amin n, nu bit % khi lng N hoc %H hay %C cng c: Gi R l gc hidrocacbon ca amin cn tm . Vd: amin n chc CT : R-NH2 Mt s gc hidrocacbon thng gp : 4
15 : CH3- ; 27 : CH2=CH- ; 29 : C2H5- ; 43 :C3H7- ; 57 : C4H9Vd 1: Cho amin no, n chc bc 1 c %N = 31,11% . Tm CT ca amin Nh li CT tng qut : CnH2n+2 2a m(Chc)m ( a l tng pi tnh phn trn) y v amin n chc => m = 1 , V amin no => a = 0 => CT: CnH2n+2 1 NH2 = CnH2n+1NH2 => %N = Dng 6: Cho amin tc dng vi dd FeCl3, Cu(NO3)2 to kt ta : Amin c kh nng tc dng vi dd FeCl3, Cu(NO3)2 xy ra theo p/trnh : 3RNH2 + FeCl3 + 3H2O => Fe(OH)3 + 3RNH3Cl 2RNH2 + Cu(NO3)2 + 2H2O => Cu(OH)2 + 2RNH2NO3 Thng th bi hay cho m kt ta : Fe(OH)3 hoc Cu(OH)2 Dng 7: tm CTPT ca amin da theo phn ng chy - Cng thc : AD CT : Tm CT bt k : CnH2n+2 2a m(Chc)m Ta c Amin bt k : CxHyNz vi y 2x + 2 +z y chn th z chn, y l th z l Amin n chc : CxHyN Amin n chc no : CnH2n+1NH2 , CnH2n+3NH2 Amin a chc no : CnH2n+2-z(NH2)z , CnH2n+2+zNz Nu cho phn trm khi lng tng nguyn t th lp CT n gin nht, da vo gi thuyt bin lun. Theo T l : x : y : z Nu bi cho s mol sn phm th lm tng t dng 3, tm c s ngt C trung bnh, da vo yu cu a ra CT ng Nu bi cho m g amin n chc t chy hon ton trong khng kh va (cha 20% oxi, 80% nit) thu c ch k mol CO2 hoc c k mol CO2 ln x mol nit , ta c th lm nh v d: Vd1: t chy hon ton 1,18 g amin n chc B bng mt lng oxi va . Dn ton b sn phm qua bnh ng nc vi trong d thu c 6gam kt ta. CTPT ca B l : Gi cng thc l CxHyN CxHyN + O2 => x CO2 Ta c t l : x.n amin = n CO 2x. 1,18 0,46 x 0,84 = 0,06 = y = > 2x +2+1 x 3 12 x + y +14 0,06
14.100 % = 31,11% Gii ra c n = 2 => CT: C2H5NH2 14 n + 17
Cho x chy t 1=>3 : ch c gi tr x=3 v y=9 l tho k . Vy CTPT l C3H9N Vd2: t chy hon ton 1,18g amin n chc B bng mt lng khng kh va (cha 20% oxi, 80% nit). Dn ton b sn phm qua bnh ng nc vi trong d thu c 6 gam kt ta v c 9,632 lt kh duy nht thot ra. Cng thc phn t ca B l : 5
Gi cng thc l CxHyN. Theo n CaCO3 = n CO2 = 0,06 mol CxHyN + (x + y/4) O2 => x CO2 + y/2 H2O + N2 Theo pt : y y 0, 06(x + ) 0, 06(x + ) 4 n 4 n O2 = N 2 kk = 4. x x y 0, 06(x + ) 0, 03 4 + 0, 03 = 0, 43 0,19x 0, 06y = 0, 03(1) n N2 = n N2 = 4. x x x 1,18 0, 06 = 0, 46x 0, 06y = 0,84(2) 12x + y + 14 x Gii (1) & (2) x = 3, y = 9. Vy CTPT l C3H9N Nu bi ton cho t chy mt amin bng khng kh, ri thu a mol CO 2; b mol H2O; c mol N2.Ta lm nh sau : Tm khi lng O trong CO2; H2O = khi lng Oxi tham gia phn ng ( BT Nguyn t O) 4n O2 => s mol oxi => s mol Nit trong kk = (Nu bi tp cho t trong khng kh cn Nu t trong O2 th khng phi tnh) => s mol Nit sinh ra trong phn ng chy. T ta s c s mol C, H, N trong amin => Tm CTGN => CTPT Vd1: Mt amino axit cha 46,6% C, 8,74% H, 13,59% N,cn li l oxi. Cng thc n gin nht trng vi cng thc phn t. CTPT ng ca amino axit l A.C3H7O2N B.C4H9O2N C.C5H9O2N D.C6H10O2N Bi gii: Ta c: % O = 100 - (46,6 + 8,74 + 13,59) = 31,07 % C : H : O : N =%C % H %O % N 46,6 8,74 31,07 13,59 : : : = : : : 12 1 16 14 12 1 16 14
= 3,88 : 8,74 : 1,94 : 0,97 = 4 : 9 : 2 : 1 => CTG : C4H9O2N => Chn B * Nu lm trc nghim nh th th hi lu. Mo p n: S C u khc nhau v s N ging nhau ( bi hay cho kiu ny) Ch cn xt t l gia C v N thi khng cn O v H Xt t l ta c C : O = 4 : 1 => B Vd2: Khi t chy hon ton mt amin n chc X, thu c 8,4 lt kh CO 2, 1,4 lt kh N2 (cc th tch kh o ktc) v 10,125 gam H2O. Cng thc phn t ca X l (cho H = 1, O = 16)Chn mt p n di y 6
A. C3H7N B. C3H9N C. C4H9N D. C2H7N Cu ny khc xt t l C : H hay hn Tm c t l 1 : 3 => B V p n A v B t l C : N = 3: 1 Dng 8: Cho amin tc dng vi HCl: (PP Gii bi tp dng tng gim khi lng) Vd amin bc 1: Aminno axit : NH2 R COOH + HCl => ClNH3-R-COOH Gi s 1mol 1mol => 1mol => m = mmui mamin = 36,5 g (v P cng HCl) Vi xmol => xmol => xmol => m Tng = 36,5x g m mui = mamin + namin (HCl hoc mui).36,5 Hoc dng BT Khi lng : mamin + mHCl = mmui (Chnh l CT trn) Cn nu amino axit tc dng vi NaOH(Kim) (Hoc Na,K) Th xem li phn Axit nh. CT: m mui = mamino axit + m.nNaOH.22 ( m l s chc COOH) i vi Amino Axit c 1 nhm COOH => nNaOH = namino axit = nmui Vd1: Cho 0,01 mol amino axit A tc dng va vi 80 ml dung dch HCl 0,125 M. C cn dung dch thu c1,835 gam mui. Khi lng phn t ca A (Tc l M ca A)l A. 97 B. 120 C. 147 D. 150 ADCT: mmui = mamin + nHCl .36,5 1,835 = Mamoni . 0, 01 + 0,01.36,5 Mamino = 147 Vd2: Cho 0,01 mol aminoaxit X phn ng ht vi 40ml dung dch HCl 0,25M to thnh 1,115g mui khan. X c cng thc cu to no sau y: A. NH2 CH2 COOH B. NH2 (CH2)2 COOH C. CH3COONH4 D. NH2 (CH2)3 COOH Da vo p n hoc Xt t l : nHCl / namin = 1 = amino axit c 1 gc chc. p t l 1 :1 => Loi p n C. p dng CT : mmui = Mamino axit . 0,01 + nHCl . 36,5 1,115 = MX.0,01 + 0,01.36,5 MX = 75 CT : amino axit : NH2 CnH2n COOH => MR = 14n + 61 = 75 => n = 1 CT : NH2 CH2 COOH. Chn p n A Vd3: A l mt -amino axit no ch cha mt nhm -NH2 v mt nhm COOH. Cho 3 gam A tc dng vi NaOH d thu c 3,88 gam mui. Cng thc phn t ca A l A.CH3-CH2-CHNH2-COOH B.CH2NH2-CH2-COOH C.CH3-CHNH2-COOH D.H2N-CH2-COOH Cch gii bnh thng : Theo bi ta c gc hirocacbono l CnH2n 7
H2NCnH2nCOOH + NaOH => H2NCnH2nCOONa + H2O bi 3 gam 3,88 gam Theo ptrnh => n H2 N Cn H 2 n COOH = nH 2 N Cn H2n COONa 14 n + = 14 n +83 61 COOH Chn D3 3,88
Gii ra c : n = 1 => CTCT ca A l H2N-CH2m mui m amino 3,88 3 = = 0, 04mol 22 22
ADCT trn => n H 2 N Cn H2 n COOH =3
M H2 N Cn H 2 n COOH = 14n +61 = 0,04 = 75 n = 1 Dang 9: Trn hn hp gm amin v hirocacbon ri em t chy Xt v d sau : Vd: t chy hon ton hn hp gm 100ml hh gm imetylamin v hai hirocacbon ng ng k tip thu c 140ml CO2 v 250ml nc (cc V cng iu kin). CTPT ca hai hirocacbon? Ta thy : Hn hp gm (C2H5)2NH v CxHy (x l s ngt C trung bnh ca hai HC). Gi n l s nguyn t C trung bnh => n =140 = 1,4 100
Vy mt trong hai cht phi c 1 cht c s ngt C > 1,4 , l (C2H5)2NH. Cht cn li c s ngt C nh hn 1,4 => x < 1,4 => hai hirocacbon ng ng k tip trn phi thuc dy ng ng ca ankan. Vy 2 hirocacbon cn tm l CH4 v C2H6 Bi tp vn dng : Cu 1: Anilin v phenol u p vi: A. dd HCl B. dd NaOH C. dd Br2 D. dd NaCl CH3I HNO2 CuO Cu 2: Cho s : NH3 Y Z 1:1 to Bit Z c kh nng tham gia p trng gng. Y v Z ln lt l A.C2H5OH, HCHO B.C2H5OH, CH3CHO C.CH3OH, HCHO D.CH3OH, HCOOH Cu 3: Dy gm cc cht u lm qu tm m chuyn sang mu xanh l A. anilin, metyl amin, amoniac B. amoni clorua, metyl amin, natri hidroxit C. anilin, aminiac, natri hidroxit D. metyl amin , amoniac, natri axetat. Cu 4: C 3 cht lng: benzen,anilin,stiren ng ring bit trong 3 l mt nhn. Thuc th phn bit 3 cht lng trn l : 8
A. dd phenolphtalein B. dd Br2 C. dd NaOH D. Qu tm Cu 5: Cho cc cht: etyl axetat,etanol,axit acrylic,phenol, anilin, phenyl amoni clorua, ancol benzylic, p crezol. Trong cc cht trn, s cht p vi NaOH l: A. 3 B. 4 C. 5. D. 6 Cu 6: Nhn nh no sau y ko ng ? A. cc amin u c kh nng nhn proton. B. Tnh bazo ca cc amin u mnh hn NH3. C. Metyl amin c tnh bazo mnh hn anilin D. CTTQ ca amino , mnh h l : CnH2n+2+2kNk Cu 7: dd metyl amin khng tc dng vi cht no sau y? A. dd HCl B. dd Br2/CCl4 C. dd FeCl3 D. HNO2 Cu 8: tch ring hh kh CH4 v CH3NH2 ta dng : A. HCl B. HCl, NaOH C. NaOH, HCl D. HNO2 Cu 9: phn bit cc dd : CH3NH2, C6H5OH , CH3COOH , CH3CHO khng th dng A. qu tm , dd Br2 B. Qu tm , AgNO3/NH3 C. dd Br2 , phenolphtalein D. Qu tm, Na kim loi Cu 10: Cho anilin tc dng vi cc cht sau: dd Br2 , H2, CH3I, dd HCl, dd NaOH, HNO2. S p xy ra l : A. 3 B. 4 C. 5 D. 6 Cu 11: Cho cc cht sau: (1) NH3 ; (2) CH3NH2; (3) (CH3)2NH ; (4) C6H5NH2 ; (5) (C6H5)2NH . Th t tng dn tnh bazo ca cc cht trn l : A. (4) < (5) < (1) < (2) < (3) B. (1) < (4) < (5) < (2) < (3) C. (5) < (4) < (1) < (2) < (3) D. (1) < (5) < (2) < (3) < (4) Cu 12: Cho s chuyn ha sau : +CH3OH/HCl +NH3 +HNO2 Alanin X Y Z. Cht Y l : A. CH3 CH(OH) COOH B. H2N CH2 COOCH3 C. CH3 CH(OH) COOCH3 D. H2N CH(CH3) COOCH3 Cu 13: chng minh glyxin C2H5O2N l mt amino axit , ch cn cho p vi A. NaOH B. HCl C. CH3OH/HCl D. HCl v NaOH Cu 14: ng vi CT C3H7O2N c bao nhiu ng phn amino axit ? A. 2 B. 3 C. 4 D. 5 Cu 15: Hp cht khng lm i mu giy qu m l : A. CH3NH2 B. C6H5ONa C. H2N CH2 CH(NH2) COOH D. H2NCH2 COOH Cu 16: Cht X c CT l C3H7O2N . X c th tc dng vi NaOH , HCl v lm mt mu dd Br. CT ca X l: 9
A. CH2 = CH COONH4 B. CH3CH(NH2)COOH C. H2NCH2CH2COOH D. CH3CH2CH2NO2 Cu 17: dd cht no sau y khng lm chuyn mu qu tm. ? A. H2N(CH2)2CH(NH2)COOH. B. CH3CH(OH)COOH C. H2NCH2COOH D. C6H5NH3Cl Cu 18: Axit glutamic (HCOO(CH2)2CH(NH2)COOH) l cht A. Ch c tnh axit B. Ch c tnh baz C. Lng tnh D. Trung tnh. Cu 19: Cho cc loi hp cht: amino axit(X), mui amoni ca axit cacboxylic(Y), amin(Z) este ca amino axit(T), dy gm cc hp cht u p vi NaOH v dd HCl l : A. X, Y,Z , T B. X,Y,T C. X,Y,Z D. Y,Z,T Cu 20: Trong cc cht sau cht no c lin kt peptit? A. alanin B. Protein C. Xenlulozo D. Glucozo Cu 21: Cho 0,1 mol A ( amino axit H2N-R-COOH) phn ng ht vi HCl to 11,15 gam mui. A l A. Valin B. Phenylalani C. Alanin D. Glyxin Cu 22: Amino axit X cha mt nhm COOH v 2 nhm NH2.Cho 1 mol X tc dng ht vi dung dch NaOH, thu c 154 gam mui. CTPT ca X l: A. C4H10N2O2 B. C5H10N2O2 C. C5H12N2O2 D. C6H14N2O2 Cu 23: Hp cht no sau y khng phi l Amino axit A. H2NCH2COOH B. CH3CH2CONH2 C. CH3NHCH2COOH D. HCOOCCH2CH(NH2)COOH Cu 24: C 3 cht: butylamin, anilin v amoniac. Th t tng dn lc baz l A. NH3 < C6H5NH2 < C4H9NH2 B. C6H5NH2 < NH3 < C4H9NH2 C. C4H9NH2 < NH3 < C6H5NH2 D. C4H9NH2 < C6H5NH2 < NH3 Cu 25: Hp cht hu c X c mch cacbon khng phn nhnh, bc nht (cha C, H, N), trong nit chim 23,73% v khi lng. Bit X tc dng c vi HCl vi t l s mol n X : n HCl = 1:1 . Cng thc phn t ca X l A. CH3 NH2 B. CH3 CH2 NH CH3 C. CH3 CH(CH3) NH2 D. CH3 CH2 CH2 NH2 Cu 26: Cho 20 gam hn hp gm 3 amin no, n chc l ng ng k tip nhau tc dng va vi dung dch HCl 1M, c cn dung dch thu c 31,68 gam mui. Th tch dung dch HCl dng l A. 16ml B. 32ml C. 160ml D. 320ml Cu 27: t chy hon ton 1 amin no n chc, bc 2, mch h X thu c CO2 v hi nc theo t l s mol tng ng l 2 : 3. CTCTca X l A. CH3 NH CH3 B. CH3 NH C2H5 C. CH3 CH2 CH2 NH2 D. C2H5 NH C2H5 Cu 28: t chy hon ton hn hp 2 amin no n chc ng ng lin tip, thu c n H2O : n CO2 = 2 :1 . Hai amin c cng thc phn t l: 10
A. C2H5NH2 v C3H7NH2 B. CH3NH2 v C2H5NH2 C. C3H7NH2 v C4H9NH2 D. C4H9NH2 v C5H11NH2 Cu 29: T l th tch ca CO2 : H2O khi t chy hon ton mt ng ng X ca glixin l 6 : 7 (phn ng chy sinh ra N2). X tc dng vi glixin cho sn phm ipeptit. Cng thc cu to ca X l: A. CH3CH(NH2)COOH B. NH2CH2CH2COOH C. C2H5CH(NH2)COOH D. A v B ng Cu 30: Hy chn trnh t tin hnh no trong cc trnh t sau phn bit dung dch cc cht: CH3NH2, H2NCOOH, CH3COONH4, anbumin. A. Dng qu tm, dng dd HNO3 c , dng dd NaOH B. Dng qu tm, dng Ca(OH)2 C. Dng Cu(OH)2 , dng phenolphtalein, dng dd NaOH D. Dng qu tm, dng dd CuSO4, dng dd NaOH Cu 31: X l mt amino axit no ch cha mt nhm - NH2 v mt nhm COOH. Cho 13,1g X tc dng vi dung dch HCl d, ta thu c 16,75g mui clohirat ca X. X c cng thc cu to no sau y? A. CH3CH2(NH2)COOH B. H2N(CH2)3COOH C. CH3(CH2)4(NH2)COOH D. H2N(CH2)5COOH Cu 32: Mt hp cht hu c X c cng thc C3H7O2N. X phn ng vi dd brom, X tc dng vi dung dch NaOH v HCl. Cht hu c X c CTCT l: A. H2N CH = CH COOH B. CH2 = CH COONH4 C. H2N CH2 CH2 COOH D. A v B ng Cu 33: Hp cht hu c X c phn t khi nh hn phn t khi ca benzen, ch cha C, H, O, N trong H chim 9,09%, N chim 18,18%. t chy 7,7g X, thu c 4,928 lt kh CO2 o 27,30C, 1 atm. X tc dng vi dung dch NaOH cho mui ca axit hu c. X c cng thc cu to no sau y? A. CH3COONH4 B. HCOONH3CH3 C. H2NCH2CH2COOH D. A v B ng Cu 34: Hy sp xp cc cht sau y theo trnh t tnh baz tng dn t tri sang phi: amoniac,anilin, p-nitroanilin, p-nitrotoluen, metylamin, imetylamin. A. C6H5NH2 < O2NC6H4NH2 < H3CC6H4NH2 < NH3 < CH3NH2 < (CH3)2NH B. O2NC6H4NH2 < C6H5NH2 < H3CC6H4NH2 < NH3 < CH3NH2 < (CH3)2NH C. O2NC6H4NH2 < H3CC6H4NH2 < C6H5NH2 < NH3 < CH3NH2 < (CH3)2NH D. Tt c u sai Cu 35: t chy ht a mol mt aminoaxit c 2a mol CO2 v a/2mol N2. Aminoaxit trn c cng thc cu to l: A. H2NCH2COOH B. H2N(CH2)2COOH C. H2N(CH2)3COOH D. H2NCH(COOH)2 11
Cu 36: t chy mt amin X n chc no, thu c CO2 v H2O c t l s
mol n CO2 : n H2O = 2 : 3 . Amin X c tn gi l: A. Etyl amin B. Metyl etyl amin C. Trimetyl amin D. Kt qu khc Cu 37: C hai amin bc mt: X (ng ng ca anilin) v Y (ng ng ca metylamin). t chy hon ton 3,21g amin X sinh ra kh CO2 v hi nc v 336 cm3 kh nit (ktc). Khi t chy hon ton amin Y cho n CO2 : n H2 O = 2 : 3 . Cng thc phn t ca amin l: A. CH3C6H4NH2, CH3CH2CH2NH2 B. C2H5C6H4NH2 , CH3CH2CH2NH2 C. CH3C6H4NH2 , CH3(CH2)4 NH2 D. A v B ng Cu 38: t chy hon ton mt amin thm X thu c 3,08g CO2 v 0,9g H2O v 336ml N2(o ktc). trung ho 0,1 mol X cn dng 600ml HCl 0,5M. Cng thc phn t ca X l cng thc no sau y: A. C7H11N B. C7H8NH2 C. C7H11N3 D. C8H9NH2 Cu 39: t chy hon ton 6,2g mt amin no n chc cn dng 10,08 lt kh oxi (ktc). Cng thc phn t ca amin l: A. C2H5NH2 B. C3H7NH2 C. CH3NH2 D. C4H9NH2 Cu 40: t chy hon ton m gam mt amin X bng lng khng kh va thu c 17,6g CO2 v 12,6g H2O v 69,44 lt nit. Gi thit khng kh ch gm nit v xi, trong oxi chim 20% th tch. Cc th tch o ktc. Amin X c cng thc phn t l: A. C2H5NH2 B. C3H7NH2 C. CH3NH2 D. C4H9NH2 Cu 41: Cho 20 gam hn hp 3 amin no, n chc, ng ng k tip, tc dng vi dung dch HCl va , sau c cn thu c 31,68 hn hp mui. Nu 3 amin trn trn theo th t khi lng mol tng dn vi s mol c t l 1: 10: 5 th amin c khi lng phn t nh nht c cng thc phn t l: A. CH3NH2 B. C2H5NH2 C. C3H7NH2 D. C4H11NH2 Cu 42: Cng thc phn t ca amin cha 23,73% khi lng nit? A. C2H5NH2 B. C6H5NH2 C. (CH3)2NH D. (CH3)3N Cu 43: Cho 9,85 gam hn hp 2 amin, n chc, bc 1 tc dng va vi dung dch HCl thu c 18,975 gam mui. Khi lng HCl phi dng l A. 9,521 B. 9,125 C. 9,215 D. 9,512 Cu 44: X l hp cht hu c mch h, cha cc nguyn t C, H, N, trong N chim 31,11%% v khi lng. X tc dng vi dung dch HCl theo t l 1:1. X c s ng phn l: A. 2 B. 3 C. 4 D. 5 Cu 45: trung ha 200ml dung dch aminoaxit X 0,5M cn 100g dung dch NaOH 8%. C cn dd thu c 16,3g mui khan. X c cng thc cu to l: A. H2NCH(COOH)2 B. H2NCH2CH(COOH)2 C. (H2N)2CHCH2(COOH)2 D. Av B ng 12
Cu 46: Hp cht X gm cc nguyn t C, H, O, N vi t l khi lng tng
ng l 3:1:4:7. Bit phn t ch c 2 nguyn t nit. X c cng thc phn t l: A. CH4ON2 B. C3H8ON2 C. C3H10O2N2 D. C4H12O2N2 Cu 47: A l -amioaxit (c cha 1 nhm NH2). t chy 8,9g A bng O2 va c 13,2g CO2; 6,3g H2Ov 1,12 lt N2(ktc). A c CTPT l : A. C2H5NO2 B. C3H7NO2 C. C4H9NO2 D. C6H9NO4 Cu 48: -aminoaxit X cha mt nhm -NH2. Cho 10,3 gam X tc dng vi axit HCl (d), thu c 13,95 gam mui khan. CTCT thu gn ca X l A. H2NCH2CH2COOOH B. CH3CH(NH2)COOH C. H2NCH2COOH D. CH3CH2CH(NH2)COOH Cu 49: C7H9N c s ng phn cha nhn thm la. A. 6. B. 5. C. 4. D. 3. Cu 50: Hp cht Y l mt amin n chc cha 20,89% N theo khi lng. Y c cng thc phn t l A. C4H5N B. C4H7N C. C4H9N D. C4H11N Cu 51: A l hp cht hu c cha C,H,O,N. t chy 1 mol A c 2 mol CO2; 2,5mol H2O; 0,5mol N2. ng thi phi dng 2,25mol O2. A c CTPT l: A. C2H5NO2 B. C3H5NO2 C. C6H5NO2 D. C3H7NO2 Cu 52: t chy hon ton mt amin thm X thu c 0,07 mol CO 2 , 0,99g H2O v 336 ml N2(ktc). trung ha 0,1 mol X cn 600 ml dd HCl 0,5M. Bit X l amin bc 1 . X c cng thc l, A. CH3-C6H2(NH2)3 B. C6H3(NH2)3 C. CH3 NH C6H3(NH2) D. NH2 C6H2(NH2)2 Cu 53: trung ha ht 3,1 g mt amin n chc cn dng 100ml dd HCl 1M. amin l; A. CH5N B. C2H7N C. C3H3N D. C3H9N Cu 54: C 3 dd sau: H2N CH2 CH2 COOH ; CH3 CH2 COOH ; CH3 (CH2)3 NH2. phn bit cc dd trn ch cn dng thuc th l: A. dd NaOH B. dd HCl C. Qu tm D. phenolphtalein Cu 55: Mt este c CT C3H7O2N, bit este c iu ch t amino axit X v ru metylic. Cng thc cu to ca amino axit X l: A. CH3 CH2 COOH B. H2N CH2 COOH C. NH2 CH2 CH2 COOH D. CH3 CH(NH2) COOH Cu 56: Amin c cha 15,05% N v khi lng c CT l : A. C2H5NH2 B. C3H7NH2 C. C6H5NH2 D. (CH3)3N Cu 57: Cho 9,3 g mt ankyl amin X tc dng vi dd FeCl3 d thu c 10,7g kt ta. Cng thc cu to ca X l: A. CH3NH2 B. C2H5NH2 C. C3H7NH2 D. C4H9NH2
13
Cu 58: Ba cht A, B, C (CxHyNz) c thnh phn % theo khi lng N trong A,
B, C ln lt l 45,16%; 23,73%; 15,05%; A , B, C tc dng vi axit cho mui amoni R NH3Cl CT ca A, B, C ln lt l: A. CH3NH2, C3H7NH2, C4H9NH2 B. CH3NH2, C3H7NH2, C6H5NH2 C. CH3NH2, C4H9NH2, C6H5NH2 D. CH3NH2, C6H5NH2, C2H5NH2 Cu 59: Hp cht C3H7O2N tc dng vi NaOH , H2SO4 v lm mt mu dd Br2 nn CTCT hp l ca hp cht l: A. CH3 CH(NH2) COOH B. CH2(NH2) CH2 COOH C. CH2 = CH COONH4 D. CH3 CH2 COONH4 Cu 60: Cht X c %C = 40,45%; %H = 7,86%; %N = 15,73% cn li Oxi. M X < 100. Khi X p vi NaOH cho mui C3H6O2Na. Cng thc phn t ca X l A. C4H9O2N B. C3H7O2N C. C2H5O2N D. CH3O2N Cu 61: Cho 1 este A c iu ch t aminoaxit B v ancol Metylic. T khi hi ca A so vi H2 = 44,5. t chy hon ton 8,9 g este A thu c 13,2g CO2, 6,3 g H2O, 1,12 lt N2 (ktc).Cng thc cu to ln lt ca A v B l : A. H2N CH2 COO CH3 v H2N CH2 COOH B. H2N CH2 CH2 COOCH3 v H2N CH2 COOH C. H2N CH2 COO CH3 v CH3 CH2 COOH D. H2N CH(CH3) COO CH3 V H2N CH2 COOH Cu 62: Mt aminoaxit no X tn ti trong t nhin gm ( ch cha 1 nhm NH2 v mt nhm COOH). Cho 0,89 g X p va vi HCl to ra 1,255 g mui . Cng thc cu to ca X l: A. H2N CH2 COOH B. CH3 CH(NH2)- COOH C. H2N-CH2-CH2-COOH D. B,C ng Cu 63: trung ha 50 ml dd metyl amin cn 40 ml dd HCl 0,1 M. Tnh C M ca metyl amin dng l : A. 0,08M B. 0,04M C. 0,02M D. 0,06M Cu 64: Hp cht X cha cc nguyn t C,H,O,N v c MX = 89. Khi t chy 1 mol X thu c 3 mol CO2 v 0,5 mol N2. Bit hp cht lng tnh v tc dng vi nc Br2. X l A. H2N CH = CH COOH B. CH2 = CH(NH2) COOH C. CH2 = CH COONH4 D. CH2 = CH CH2 NO2 Cu 65: Cho mg anilin tc dng vi dd HCl c d, c cn dung dch sau p thu c 15,54 g mui khan. Hiu sut p t 80% . m c gi tr l : A. 13,95g B. 8,928g C. 11,16g D. 12,5g Cu 66: Cho 20g hh 3 amin: metyl amin, etyl amin, anlyl amin t/d va vi V ml dd HCl 1M . Sau p c cn dd thu c 31,68 g mui khan. Gi tr ca V l: A. 120ml B. 160ml C. 240ml D. 320 ml
14
Cu 67: Cho 4,41 g mt amino axit X tc dng vi dd NaOH d thu c 5,73
g mui . Mt khc cng lng X trn nu cho tc dng vi HCl d thu c 5,505 g mui clorua . Cng thc cu to ca X l: A. HCOOC CH2 CH2 CH(NH2) COOH B. CH3 CH(NH2) COOH C. HOOC CH2 CH(NH2)CH2 COOH D. C A v C Cu 68: S ng phn amin c cng thc phn t C2H7N l A. 2. B. 4. C. 5. D. 3. Cu 69: Cho cc phn ng: H2N - CH2 - COOH + HCl => H3N+- CH2 - COOH Cl-. H2N - CH2 - COOH + NaOH => H2N - CH2 - COONa + H2O. Hai phn ng trn chng t axit aminoaxetic A. c tnh cht lng tnh. B. ch c tnh axit. C. ch c tnh baz. D. va c tnh oxi ho, va c tnh kh. Cu 70: Anilin (C6H5NH2) c phn ng vi dung dch A. NaOH. B. Na2CO3. C. NaCl. D. HCl. Cu 71: Cho 8,9 gam mt hp cht hu c X c cng thc phn t C3H7O2N phn ng vi 100 ml dung dch NaOH 1,5M. Sau khi phn ng xy ra hon ton, c cn dung dch thu c 11,7 gam cht rn. CTCT thu gn ca X l A. HCOOH3NCH=CH2. B. H2NCH2CH2COOH. C. CH2=CHCOONH4. D. H2NCH2COOCH3. Cu 72: Cho dy cc cht: C6H5OH(phenol), C6H5NH2(anilin), H2NCH2COOH, CH3CH2COOH, CH3CH2CH2NH2. S cht trong dy t/d c vi dd HCl l A.4. B. 2. C. 3. D. 5. Cu 73: Cht no sau y khng kh nng tham gia phn ng trng ngng : A. CH3CH(NH2)COOH B. HCOOCH2CH2CH2NH2 C. CH3CH(OH)COOH D. HOCH2 - CH2OH Cu 74: Cho 12,55g mui CH3CH(NH3Cl)COOH t/d vi 150ml dd Ba(OH)2 1M. C cn dung dch sau phn ng thu c m gam cht rn. Gi tr ca m l : A. 15,65 g B. 26,05 g C. 34,6 g D. Kt qu khc CH3CH(NH3Cl)COOH + Ba(OH)2 => (CH3CH(NH3)COO)2Ba + BaCl2 + H2O Cu 75: Cho 22,15 g mui gm CH2NH2COONa v CH2NH2CH2COONa tc dng va vi 250 ml dung dch H2SO4 1M. Sau phn ng c cn dung dch th lng cht rn thu c l : A. 46,65 g B. 45,66 g C. 65,46 g D. Kt qu khc Cu 76: Cho 13,35g hh X gm H2NCH2CH2COOH v CH3CH(NH2)COOH tc dng vi V ml dung dch NaOH 1M thu c dung dch Y. Bit dung dch Y tc dng va vi 250 ml dung dch HCl 1M. Gi tr ca V l A. 100 ml B. 150 ml C. 200 ml D. 250 ml 15
Cu 77: Cho 20,15 g hn hp X gm (CH2NH2COOH v CH3CHNH2COOH)
tc dng vi 450 ml dung dch HCl 1M thu c dung dch Y. Y tc dng va vi 200 ml dung dch NaOH. Phn trm khi lng ca mi cht trong X l: A. 55,83 % v 44,17 % B. 53,58 % v 46,42 % C. 58,53 % v 41,47 % D. 52,59 % v 47,41% Cu 78: Mt amino axit (X) c cng thc tng qut NH 2RCOOH. t chy hon ton a mol X thu c 6,72 (l) CO2 (ktc) v 6,75g H2O. CTCT ca X l: A. CH2NH2COOH B. CH2NH2CH2COOH C. CH3CH(NH2)COOH D. C B v C Cu 79: Xc nh th tch O2 (ktc) cn t chy ht 22,455 g hn hp X gm (CH3CH(NH2)COOH v CH3COOCH(NH2)CH3. Bit sn phm chy c hp th ht vo bnh ng dd NaOH th khi lng bnh tng 85,655 g. A. 44,24 (l) B. 42,8275 (l) C. 128,4825 (l) D. Kt qu khc Cu 80: Mt amino axit no X ch cha mt nhm -NH2 v mt nhm -COOH. Cho 0,89 g X phn ng va vi HCl to ra 1,255 g mui. CTCT ca X l: A. H2N-CH2-COOH B. CH3-CH(NH2)-CH2-COOH C. H2N-CH2-CH2-COOH D. B, C, u ng. Cu 81: Nhng cht no sau y lng tnh : A. NaHCO3 B. H2N CH2 COOH C. CH3COONH4 D. C A, B, C Cu 82: Cho qu tm vo dung dch mi hp cht di y, dung dch no s lm qu tm ho : (1) H2N CH2 COOH; (2) Cl-NH3+- CH2COOH; (3) H2N - CH2 - COONa (4) H2N(CH2)2CH(NH2)-COOH; (5) HOOC(CH2)2CH(NH2) COOH; A. (2), (5) B. (1), (4) C. (1), (5) D. (2) Cu 83: l mt hp cht hu c c CTPT C5H11O2N. un (A) vi dD NaOH thu c mt hp cht c CTPT C2H4O2NNa v cht hu c (B). Cho hi qua CuO/t0 thu c cht hu c (D) c kh nng cho phn ng trng gng. Cng thc cu to ca A l : A. CH2 = CH-COONH3-C2H5 B. CH3(CH2)4NO2 C. H2NCH2-CH2-COOC2H5 D. NH2CH2COO-CH2- CH2-CH3 Cu 84: Bit rng khi t chy hon ton 0,1 mol X thu c 1,12 lt N 2; 6,72 lt CO2 v 6,3 gam H2O. CTPT ca X A. C3H5O2N B. C3H7O2N C. C3H5O2N D. C4H9O2N Cu 85: cho 0,1 mol cht X (C2H8O3N2) tc dng vi dd cha 0,2 mol NaOH un nng thu c cht kh lm xanh giy qu tm m t v dd Y. C cn dd Y thu c m gam cht rn khan. Gi tr ca m l A. 5,7 B. 12,5 C. 15 D. 21,8 16
Cu 86: aminoaxit X cha 1 nhm COOH v 2 nhm NH 2. cho 1 mol X tc
dng ht vi dd NaOH thu c 154 gam mui. CTCT ca X l A. H2NCH2CH(NH2)CH2COOH B. H2NCH2CH2CH2(NH2)COOH C. H2N(CH2)3CH(NH2)COOH D. H2NCH=CHCH(NH2)COOH Cu 87: t chy ht a mol mt aminoaxit c 2a mol CO2 v a/2 mol N2. amonoaxit trn c CTPT l A. H2NCH2COOH B. H2N(CH2)2COOH C. H2N[CH2]3COOH D. H2NCH[COOOH]2 Cu 88: A l mt -aminoaxit no, c mch cacbon khng phn nhnh, cha mt nhm -NH2 v 2 nhm COOH. Khi t chy hon ton 1 mol A th thu c hh kh trong c 4,5 mol < n CO2 < 6 mol. CTCT ca A l A. H2NCH(COOH)-CH(COOH)-CH3 B. H2NCH(COOH)-CH2-CH2COOH C. HOOC-CH(NH2)-CH2COOH D. HOOCCH2-CH(NH2)-CH2COOH Cu 89: cho 100 ml dd aminoaxit A 0,2M tc dng va vi 80 ml dd NaOH 0,25M. mt khc 100 ml dd A trn tc dng vag vi 80 ml dd HCl 0,5M. Bit d A/H2 = 52 . CTPT ca A l A. (H2N)2C2H3COOH B. H2NC2H3(COOH)2 C. (H2N)2C2H2(COOH)2 D. H2NC3H5(COOH)2 Cu 90: Cho X l mt aminoaxit. Khi cho 0,01 mol X t/d vi HCl th dng ht 80 ml dd HCl 0,125M v thu c 1,835 gam mui khan. Cn cho 0,01 mol X tc dng vi dd NaOH th cn dng 25 gam dd NaOH 3,2%. CTCT ca X l A. H2NC3H6COOH B. H2NC2H4COOH C. H2NC3H5(COOH)2 D. (H2N)2C3H4(COOH)2 Cu 91: t chy hon hon ton cht hu c X thu c 3,36 lt kh CO2 v 0,56 lt N2 (u o ktc) v 3,15 gam H2O. khi cho X tc dng vi dd NaOH thu c sn phm c mui H2NCH2COONa. CTCT thu gn ca X l A. H2NCH2CH2COOH B. H2NCH2COOC3H7 C. H2NCH2COOC2H5 D. H2NCH2COOCH3 Cu 92: Este A c iu ch t aminoaxit B v CH3OH, dA/H2= 44,5. t chy hon ton 8,9 gam A thu c 13,2gam CO2; 6,3gam H2O v 1,12 lt N2 (ktc). CTCT ca A l A. H2NCH2COOCH3 B. H2NC2H4COOCH3 C. H2NC3H6COOCH3 D. H2NC2H2COOCH3 Cu 93: Hp cht X mch h c CT: CxHyOzNt. trong X c 15,7303%N v 35,955%O. bit X tc dng vi dd HCl ch to ra mui ROzNH3Cl (HS rn k nng: l gc hirocacbon) v tham gia phn ng trng ngng. CTCT ca X l A. H2NC2H4COOH B. H2NCH2COOH C. H2NC2H2COOH D. H2NC3H6COOH 17
Cu 94: Hp cht X c CTPT trng vi CTGN va tc dng vi dd NaOH
va tc dng vi dd HCl. trong X c thnh phan cc nguyn t C, H, N ln lt l 40,449%; 7,865%; 15,73% v cn li l oxi. Cn khi cho 4,45 gam X phn ng vi dd NaOH (va ) thu c 4,85 gam mui khan. CTCT ca X l A. CH2=CH COONH4 B. H2NC2H4COOH C. H2NCOOCH2CH3 D. H2NCH2COOCH3 Cu 95: Hp cht CH3 NH CH2CH3 c tn ng l A. imetylamin. B. EtylMetylamin. C. N-Etylmetanamin. D. imetylmetanamin. Cu 96: Cht no l amin bc 2 ? A. H2N CH2 NH2. B. (CH3)2CH NH2. C. CH3 NH CH3. D. (CH3)3N. Cu 97: Cho 4,5 gam etylamin (C2H5NH2) tc dng va vi axit HCl. Khi lng mui thu c l A. 8,15 gam B. 0,85 gam C. 7,65 gam D. 8,10 gam Cu 98: Th tch nc brom 3% (d = 1,3g/ml) cn dng iu ch 4,4g tribromanilin l A. 164,1ml. B. 49,23ml. C. 146,1ml. D. 16,41ml. Cu 99: Khi lng anilin cn dng tc dng vi nc brom thu c 6,6g kt ta trng l A. 1,86g. B. 18,6g. C. 8,61g. D. 6,81g. Cu 100: Mt amino axit X ch cha 1 nhm amino v 1 nhm cacboxyl . Cho 10,68 gam X tc dng vi HCl d thu c 15,06 gam mui. X c th l : A. axit glutami B. valin. C. glixin D. alanin. Cu 101: chng minh tnh lng tnh ca NH2-CH2-COOH(X),ta cho X t/d vi A. HCl, NaOH. B. Na2CO3, HCl. C. HNO3, CH3COOH. D. NaOH, NH3. Cu 102: Cho cc phn ng : H2N CH2 COOH + HCl Cl-H3N+ CH2 COOH. H2N CH2 COOH + NaOH H2N CH2 COONa + H2O. Hai phn ng trn chng t axit amino AxetiC. A. C tnh axit B. C tnh cht lng tnh C. C tnh baz D. C tnh oxi ha v tnh kh Cu 103: Cho cc cht: (1) amoniac; (2) metylamin; (3) anilin; (4) imetylamin. 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) Cu 104: Mt amin A thuc cng dy ng ng vi metylamin c hm lng cacbon trong phn t bng 68,97%. Cng thc phn t ca A l.: 18
A. C2H7N.
B. C3H9N.
C. C4H11N.
D. C5H13N.
Cu 105: Hp cht no sau y khng phi l amino axit :
A. CH3CONH2 B. CH3CH(NH2)CH(NH2)COOH C. HOOC-CH(NH2)CH2COOH D. CH3CH(NH2)COOH Cu 106: Axit amino axetic khng tc dng vi cht : A. CaCO3 B. H2SO4 long C. KCl D. CH3OH Cu 107: Aminoaxit c kh nng tham gia phn ng este ha v : A. Aminoaxit l cht lng tnh B. Aminoaxit c nhm chc -COOH C. Aminoaxit chc nhm chc NH2 D. Tt c u sai Cu 108: Khi thy phn n cng protein thu c cc cht : A. -Gucoz v -Glucoz B. Axit C. Amin D. Aminoaxit Cu 109: Trong cc cht sau : X1: H2N CH2 COOH X2: CH3 NH2 X3: C2H5OH X4: C6H5NH2 Nhng cht c kh nng th hin tnh baz l : A. X1,X3 B. X1,X2 C. X2,X4 D. X1,X2,X3 Cu 110: Khi un nng dd protein xy ra h/tng no trong s cc h/tng sau? A. ng t B. Bin i mu ca dung dch C. Tan tt hn D. C kh khng mu bay ra Cu 111: nhn bit dung dch glixin, h tinh bt, lng trng trng, ta c th tin hnh theo th t no sau y : A. Dng qu tm, dng dung dch iot B. Dng dd iot , dng dd HNO3 C. Dng qu tm, dng dng dd HNO3 D. Dng Cu(OH)2, dng dd HNO3 Cu 112: Mt amino axit A c 40,4% C ; 7,9% H ; 15,7 % N; 36%O v MA = 89. Cng thc phn t ca A l : A. C4H9O2N B. C3H5O2N C. C2H5O2N D. C3H7O2N Cu 113: Cho 0,01 mol amino axit A tc dng va 80 ml dung dch HCl 0,125 M.C cn dung dch thu c 1,835 gam mui . Khi lng ca A l : A. 9,7 B. 1,47 C. 1,2 D. 1,5 Cu 114: Cho 0,1 mol A (aminoaxit dng H2NRCOOH) phn ng ht vi HCl to 11,15 gam mui. A l cht no di y? A. Valin B. Glixin C. Alanin D. Phenylalanin Cu 115: Cho 0,01 mol amino axit X phn ng ht vi 40 ml dung dch HCl 0,25M to thnh 1,115gam mui khan. X c CTCT no sau : A. NH2-CH2-COOH B. NH2-(CH2)2-COOH C. CH3COONH4 D. NH2-(CH2)3-COOH Cu 116: Cho 0,01 mol aminoaxit A phn ng va vi 0,02 mol HCl hoc 0,01 mol NaOH. Cng thc ca A c dng nh th no? A. (H2N)2R(COOH)2 B. (H2N)2RCOOH 19
C. H2NRCOOH
D. H2NR(COOH)2
Cu 117: Tn gi no sai so vi CT tng ng:
A. H2N-CH2-COOH : glixin B. CH3-CH(NH2)-COOH : -Alanin C. HOOC - CH2 - CH2 - CH(NH2) - COOH : axit glutamic D. H2N - (CH2)4 - CH(NH2) - COOH: Lisin Cu 118: Cho cc cht sau y: (1) CH3-CH(NH2)-COOH (2) OH-CH2-COOH (3) CH2O v C6H5OH (4) C2H4(OH)2 v p - C6H4(COOH)2 (5) (CH2)6(NH2)2 v (CH2)4(COOH)2 Cc trng hp c kh nng tham gia phn ng trng ngng? A. 1, 2 B. 3, 5 C. 3, 4 D. 1, 2, 3, 4, 5. Cu 119: Poli peptit l hp cht cao phn t c hnh thnh t cc : A. Phn t axit v ru . B. Phn t amino axit . C. Phn t axit v andehit . D. Phn t ru v amin . Cu 120: t chy hon ton hn hp 2 amin no n chc l ng ng k tip thu c 2,24lit kh CO2 (ktc) v 3,6gam H2O. Cng thc ca hai amin l A. CH3NH2 v C2H5NH2. B. C2H5NH2 v C3H7NH2. C. C3H7NH2 v C4H9NH2. D. C5H11NH2 v C6H13NH2. Cu 121: Khi t chy hon ton mt amin n chc X thu c 10,125gam H2O, 8,4lt CO2(kc) v 1,4lt N2. S ng phn ng vi CTPT ca X l A. 2. B. 3. C. 4. D. 5. Cu 122: Dung dch X gm HCl v H2SO4 c pH = 2. trung ho hon ton 0,59gam hn hp hai amin no n chc, bc 1 ( c s nguyn t C nh hn hoc bng 4 th phi dng 1 lt dung dch X. Cng thc phn t ca 2 amin l A. CH3NH2 v C4H9NH2. B. C3H7NH2 v C4H9NH2. C. C2H5NH2 v C4H9NH2. D. A v C. Cu 123: Hp cht X mch h c CTPT l C4H9NO2. Cho 10,3 gam X p/ng va vi dd NaOH sinh ra mt cht kh Y v dd Z. Kh Y nng hn khng kh, lm giy qu tm m chuyn mu xanh. Dung dch Z c kh nng lm mt mu nc brom. C cn dd Z thu c m gam mui khan. Gi tr ca m l A.8,2. B. 10,8. C. 9,4. D. 9,6. CH2=CHCOONH3CH3 + NaOH => CH2=CHCOO Na + CH3NH2 + H2O Cu 124: Pht biu no sau y l ng? A. Anilin tc dng vi axit nitr khi un nng, thu c mui iazoni. B. Benzen lm mt mu nc brom nhit thng. C. Etylamin phn ng vi axit nitr nhit thng, sinh ra bt kh. D. Cc ancol a chc u phn ng vi Cu(OH)2 to dd mu xanh lam.
20
Cu 125: Cho hai hp cht hu c X, Y c cng cng thc phn t l C3H7NO2 .
Khi phn ng vi dung dch NaOH, X to ra H 2NCH2COONa v cht hu c Z ; cn Y to ra CH2=CHCOONa v kh T. Cc cht Z v T ln lt l A. CH3OH v CH3NH2 B. C2H5OH v N2 C. CH3OH v NH3 D. CH3NH2 v NH3 Cu 126: : Cht X c cng thc phn t C4H9O2N . Bit : X + NaOH Y + CH4O; Y + HCl (d) Z + NaCl Cng thc cu to ca X v Z ln lt l A. H2NCH2CH2COOCH3 v CH3CH(NH3Cl)COOH B. CH3CH(NH2)COOCH3 v CH3CH(NH3Cl)COOH C. H2NCH2COOC2H5 v ClH3NCH2COOH D. CH3CH(NH2)COOCH3 v CH3CH(NH2)COOH Cu 127: S ng phn cu to ca amin bc mt c cng CTPT C4H11N l A. 2 B. 5 C. 4 D. 3 Cu 128: Cht X c cng thc phn t C3H7O2N v lm mt mu dung dch brom. Tn gi ca X l A. axit -aminopropionic B. mety aminoaxetat C. axit - aminopropionic D. amoni acrylat Cu 129: Thu phn 1250 gam protein X thu c 425 gam alanin. Nu phn t khi ca X bng 100.000 vc th s mt xch alanin c trong phn t X l A. 453 B. 382 C. 328 D. 479 Cu 130: Cho 1,82 gam hp cht hu c n chc, mch h X c cng thc phn t C3H9O2N tc dng va vi dd NaOH, un nng thu c kh Y v dung dch Z. C cn Z thu c 1,64 gam mui khan. CTCT thu gn ca X l A. CH3CH2COONH4. B. CH3COONH3CH3. C. HCOONH2(CH3)2. D. HCOONH3CH2CH3. Cu 131: Cho 5,9 gam amin n chc X tc dng va vi dung dch HCl, sau khi phn ng xy ra hon ton thu c dung dch Y. Lm bay hi dd Y c 9,55 gam mui khan. S cng thc cu to ng vi CTPT ca X l A. 2. B. 4. C. 5. D. 3. Cu 132: Trong phn t aminoaxit X c mt nhm amino v mt nhm cacboxyl. Cho 15,0 gam X tc dng va vi dung dch NaOH, c cn dung dch sau phn ng thu c 19,4 gam mui khan. Cng thc ca X l A. H2NC3H6COOH. B. H2NC2H4COOH. C. H2NC4H8COOH. D. H2NCH2COOH. Cu 133: un nng cht H2N-CH2-CONH-CH(CH3)-CONH-CH2-COOH trong dung dch HCl (d), sau khi cc phn ng kt thc thu c sn phm l : A. H2N-CH2-COOH, H2H-CH2-CH2-COOH B. H3N+-CH2-C, H3N+-CH2-CH2-COOHClOOHCl C. H3N+-CH2-C, H3N+-CH(CH3)-COOOHClOHCl D. H2N-CH2-COOH, H2N-CH(CH3)-COOH 21
Cu 134: Cho 8,9 gam mt hp cht hu c X c cng thc phn t C3H7O2N
phn ng vi 100 ml dd NaOH 1,5M. Sau khi phn ng xy ra hon ton, c cn dung dch thu c 11,7 gam cht rn. Cng thc cu to thu gn ca X l : A. HCOOH3NCH=CH2 B. H2NCH2CH2COOH C. CH2=CHCOONH4 D. H2NCH2COOCH3 Cu 135: Khi t chy cc ng ng ca metylamin, t l s mol a = nCO2 / nH2O bin i trong khong no A. 0,4 < a < 1,2. B. 1 < a< 2,5. C. 0,4 < a < 1. D. 0,75 < a < 1. Cu 136: Amino axit X cha mt nhm chc amino trong phn t. t chy hon ton mt lngX thu c CO2 v N2 theo t l th tch 4:1.X c tn gi l A. Axit aminoetanonic. B. Axit 3-amino propanoic. C. Axit 2,2-iaminoetanoic. D. Axit -4-aminobutanoic. Cu 137: Hp cht X cha cc nguyn t C, H, O, N v c phn t khi l 89. Khi t chy hon ton 1 mol X thu c hi nc, 3mol CO2 v 0,5mol N2. Bit rng X l hp cht lng tnh v t/dng c vi nc Br2. X c CTCT l A. H2N-CH=CH-COOH. B. CH2=CH(NH2)COOH. C. CH2=CH-COONH4. D. CH3-CH(NH2)-COOH. Cu 138: Hai hp cht hu c X v Y c cng CTPT l C2H7NO2. Bit X + NaOH => A + NH3 + H2O Y + NaOH => B + CH3-NH2 + H2O. A v B c th l: A. HCOONa v CH3COONa. B. CH3COONa v HCOONa. C. CH3NH2 v HCOONa. D. CH3COONa v NH3. Cu 139: X l mt -aminoaxit no ch cha mt nhm -NH2 v mt nhm -COOH. Cho 14,5gam X tc dng vi dung dch HCl d thu c 18,15gam mui clorua ca X. CTCT ca X c th l A. CH3CH(NH2)COOH. B. H2NCH2COOH. C.CH3CH2CH(NH2)COOH. D. CH3[CH2]4CH(NH2)COOH. Cu 140: X l mt -aminoaxit. Cho 0,01mol X tc dng va vi 80ml dd HCl 0,125M, sau em c cn dd thu c 1,835gam mui. Phn t khi ca X l A. 174. B. 147. C. 197. D. 187. Cu 141: Cho cc cht : (1)C6H5-NH2; (2) C2H5NH2; (3) (C2H5)2NH; (4) NaOH; (5): NH3. Dy c sp xp theo chiu tng ca lc baz l A. (1)< (5)< (2)< (3)< (4). B. (1)< (2)< (5)< (3)< (4). C. (1)< (5)< (3)< (2)< (4). D. (2)< (1)< (3)< (5)< (4). Cu 142: trung ha 200ml dung dch amino axit X cn 100g dung dch NaOH 8%, c cn dung dch c 16,3g mui khan. X c CTCT l A. NH2CH2CH2COOH. B. H2NCH(COOH)2. C. (H2N)2CHCOOH. D. H2NCH2CH(COOH)2. 22
Cu 143: Cho cht hu c X c cng thc phn t C 2H8O3N2 tc dng vi dung
dch NaOH, thu c cht hu c n chc Y v cc cht v c. Khi lng phn t (theo vC) ca Y l A. 85 B. 68 C. 45 D. 46 Cu 144: Hp cht X c cng thc phn t trng vi cng thc n gin nht, va tc dng c vi axit va tc dng c vi kim trong iu kin thch hp. Trong phn t X, thnh phn phn trm khi lng ca cc nguyn t C, H, N ln lt bng 40,449%; 7,865% v 15,73%; cn li l oxi. Khi cho 4,45 gam X phn ng hon ton vi mt lng va dung dch NaOH (un nng) thu c 4,85 gam mui khan. Cng thc cu to thu gn ca X l A. CH2=CHCOONH4. B. H2NCOO-CH2CH3. C. H2NCH2COO-CH3. D. H2NC2H4COOH. Cu 145: -aminoaxit X cha mt nhm -NH2. Cho 10,3 gam X tc dng vi axit HCl (d), thu c 13,95 gam mui khan. CTCT thu gn ca X l A. H2NCH2CH2COOH. B. H2NCH2COOH. C. CH3CH(NH2)COOH. D. CH3CH2CH(NH2)COOH. Cu 146: Cho hn hp X gm hai cht hu c c cng cng thc phn t C2H7NO2 tc dng va vi dd NaOH v un nng, thu c dd Y v 4,48 lt hn hp Z ( ktc) gm hai kh (u lm xanh giy qu m). T khi hi ca Z i vi H2 bng 13,75. C cn dung dch Y thu c khi lng mui khan l : A. 8,9 gam. B. 15,7 gam. C. 16,5 gam. D. 14,3 gam. Cu 147: t chy hon ton mt lng cht hu c X thu c 3,36 lt kh CO2, 0,56 lt kh N2 (cc kh o ktc) v 3,15 gam H2O. Khi X tc dng vi dd NaOH thu c s/p c mui H2N-CH2-COONa. CTCT thu gn ca X l A. H2N-CH2-COO-C3H7. B. H2N-CH2-COO-CH3. C. H2N-CH2-COO-C2H5. D. H2N-CH2-CH2-COOH. Cu 148: Mt trong nhng im khc nhau ca protit so vi lipit v glucoz l A. protit lun cha chc hiroxyl. B. protit lun cha nit. C. protit lun l cht hu c no. D. protit c khi lng phn t ln hn. Cu 149: Cho cc loi hp cht: aminoaxit (X), mui amoni ca axit cacboxylic (Y), amin (Z), este ca aminoaxit (T). Dy gm cc loi hp cht u tc dng c vi dung dch NaOH v u tc dng c vi dung dch HCl l A. X, Y, Z, T. B. X, Y, T. C. X, Y, Z. D. Y, Z, T. Cu 150: Thuc th c dng phn bit Gly-Ala-Gly vi Gly-Ala l A.. dd NaCl. B. dd HCl. C. Cu(OH)2/OH-. D. dd NaOH. Cu 151: Este A c iu ch t amino axit B v ru metylic. T khi hi ca A so vi hiro l 44,5. t chy hon ton 8,9gam este A thu c 13,2gam kh CO2, 6,3gam H2O v 1,12 lit N2(ktc). CTCT ca A v B l A. NH2-CH2-COOCH3 v NH2-CH2-COOH. 23
B. NH2-CH2-CH2-COOCH3 v NH2-CH2-COOH C. CH3COOCH3 v NH2-CH2-COOH. D. NH2-CH2-COOH v NH2-CH2-CH2-COOH Cu 152: Cho qu tm vo mi dung dch hn hp di y, dung dch no lm qu tm ha ? (1) H2N - CH2 - COOH (2) Cl - NH3+ - CH2 - COOH (3) NH2 - CH2 - COONa (4) H2N- CH2-CH2-CH(NH2)- COOH (5) HOOC- CH2-CH2-CHNH2- COOH A. (2), (4) B. (3), (1) C. (1), (5) D. (2), (5). Cu 153: Cho dung dch cha cc cht sau: X1 : C6H5 - NH2; X2 : CH3 - NH2; X3 : NH2 - CH2 COOH; X4: HOOC-CH2-CH2-CHNH2COOH; X5 : H2N- CH2-CH2-CH2-CHNH2COOH. Dung dch no lm qu tm ha xanh ? A. X1, X2, X5 B. X2, X3, X4 C. X2, X5 D. X1, X3, X5 Cu 154: Hp cht C3H7O2N tc dng c vi NaOH, H2SO4 v lm mt mu dd brom, CTCT ca n l A. CH3-CHNH2 -COOH B. H2N-CH2 - CH2 COOH C. CH2 = CH - COONH4 D. A v B ng. Cu 155: X l mt aminoaxit no ch cha mt nhm -NH2 v mt nhm-COOH. Cho 0,89 gam X p/ va vi HCl to ra 1,255 gam mui. CTCT ca X l : A. NH2-CH2-COOH B. CH3-CH(NH2)COOH C. CH3-CH(NH2)-CH2- COOH D. CH3-CH2-CH2-CH(NH2)COOH Cu 156: T l VCO2 : VH2O sinh ra khi t chy hon ton mt ng ng X ca glixin l 6 : 7 (phn ng sinh ra kh N2). X t/d vi glixin cho s/p l ipeptit. X l : A. NH2-CH2-COOH B. NH2-CH2-CH2-COOH C. CH3-CH2-CH2-CH(NH2)COOH D. Kt qu khc Cu 157: Dung dch ca cht no sau y khng lm i mu qu tm : A. Glixin (CH2NH2-COOH) B. Lizin (H2NCH2-[CH2]3CH(NH2)-COOH) C. Axit glutamic (HOOCCH2CHNH2COOH) D. Natriphenolat (C6H5ONa) Cu 158: Cht no sau y ng thi tc dng c vi dd HCl v dd NaOH. A. C2H3COOC2H5 B. CH3COONH4 C. CH3CH(NH2)COOH D. C A, B, C Cu 159: Cc cht X, Y, Z c cng CTPT C2H5O2N. X tc dng c c vi HCl v Na2O. Y tc dng c vi H mi sinh to ra Y1. Y1 tc dng vi H2SO4 to ra mui Y2. Y2 tc dng vi NaOH ti to li Y1. Z tc dng vi NaOH to ra mt mui v kh NH3. CTCT ng ca X, Y, Z l : A. X (HCOOCH2NH2), Y (CH3COONH4), Z (CH2NH2COOH) 24
B. X(CH3COONH4), Y (HCOOCH2NH2), Z (CH2NH2COOH) C. X (CH3COONH4), Y (CH2NH2COOH), Z (HCOOCH2NH2) D. X (CH2NH2COOH), Y (CH3CH2NO2), Z (CH3COONH4) Cu 160: Mt cht hu c X c CTPT C3H9O2N. Cho tc dng vi dung dch NaOH un nh, thu c mui Y v kh lm xanh giy qu tm t. Nung Y vi vi ti xt thu c kh etan. Cho bit CTCT ph hp ca X ? A. CH3COOCH2NH2 B. C2H5COONH4. C. CH3COONH3CH3 D. C A, B, C Cu 161: Tng ng vi CTPT C2H5O2N c bao nhiu /phn c cha 3 nhm chc: A. 1 B. 2 C. 3 D. 4 Cu 162: Mt hp cht hu c X c CTPT C3H7O2N. X phn ng c vi dung dch Br2, X tc dng c vi NaOH v HCl. CTCT ng ca X l : A. CH(NH2)=CHCOOH B. CH2=C(NH2)COOH C. CH2=CHCOONH4 D. C A, B, C Cu 163: 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). Cu 164: Cho 0,76 gam hn hp gm amin ng ng lin tip t/d va u vi Vml dd HNO3 0,5M th thu c 2,02 g hn hp mui khan. Hai amin trn l A. Etylamin v propylamin B. Metylamin v etylamin C. Anilin va benzylamin D. Anilinva metametylanilin Cu 165: -aminoaxit X cha mt nhm -NH2. Cho 10,3 gam X tc dng vi axit HCl (d), thu c 13,95 gam mui khan. CTCT thu gn ca X l A. NH2CH2CH2COOH B. CH3CH(NH2)COOH C. NH2CH2COOH D. CH3CH2CH(NH2)COOH Cu 166: Dy gm cc cht u lm giy qu tm m chuyn sang mu xanh l A. metyl amin, amoniac, natri axetat B. anilin, metyl amin, amoniac C. anilin, amoniac, natri hiroxit D. amoni clorua, metyl amin, natri hiroxit Cu 167: Amin ng vi cng thc phn t C4H11N c my ng phn mch khng phn nhnh ? A. 4 B. 5 C. 6 D.7 Cu 168: Amin thm ng vi cng thc phn t C7H9N c my ng phn ? A. 3 B. 4 C. 5 D. 6 Cu 169: Cho cc cht c cu to nh sau : (1) CH3 - CH2 - NH2 (2) CH3 - NH - CH3 (3) CH3 - CO - NH2 (4) NH2 - CO - NH2 (5) NH2 - CH2 - COOH (6) C6H5 - NH2 (7) C6H5NH3Cl (8) C6H5 - NH - CH3 (9) CH2 = CH - NH2. 25
Cht no l amin ? A. (1); (2); (6); (7); (8) B. (1); (3); (4); (5); (6); (9) C. (3); (4); (5) D. (1); (2); (6); (8); (9). Cu 170: Anilin tc dng c vi nhng cht no sau y ? (1) dd HCl (2) dd H2SO4 (3) dd NaOH (4) dd brom (5) dd CH3 - CH2 - OH (6) dd CH3COOC2H5 A. (1), (2), (3) B. (4), (5), (6) C. (3), (4), (5) D. (1), (2), (4) Cu 171: Pht biu no sau y sai ? A. Anilin l baz yu hn NH3 v nh hng ht electron ca nhn benzen ln nhm - NH2 bng hiu ng lin hp. B. Anilin khng lm thay i mu giy qu tm m. C. Anilin t tan trong H2O v gc C6H5 - k nc. D. Nh c tnh baz , anilin tc dng c vi dung dch brom. Cu 172: Phng php no thng dng iu ch amin ? A. Cho dn xut halogen tc dng vi NH3 B. Cho ru tc dng vi NH3 C. Hiro ho hp cht nitrin D. Kh hp cht nitro bng hiro nguyn t . Cu 173: Ru v amin no sau y cng bc ? A. (CH3)3COH v (CH3)3CNH2 B. C6H5NHCH3 v C6H5CHOHCH3 C. (CH3)2CHOH v (CH3)2CHNH2 D.(CH3)2CHOH v (CH3)2CHCH2NH2 Cu 174: Tm pht biu sai trong cc pht biu sau ? A. Etylamin d tan trong H2O do c to lin kt H vi nc B. Nhit si ca ru cao hn so vi hirocacbon c phn t khi tng ng do c lin kt H gia cc phn t ru. C. Phenol tan trong H2O v c to lin kt H vi nc. D. Metylamin l cht lng c mi khai, tng t nh amoniac. Cu 175: Trong s cc cht sau : C2H6; C2H5Cl; C2H5NH2; CH3COOC2H5; CH3COOH; CH3CHO; CH3OCH3. Cht no to c lin kt H lin phn t ? A. C2H6 B. CH3COOCH3 C. CH3CHO; C2H5Cl D. CH3COOH ; C2H5NH2 Cu 176: Metylamin d tan trong H2O do nguyn nhn no sau y ? A. Do nguyn t N cn cp electron t do d nhn H+ ca H2O. B. Do metylamin c lin kt H lin phn t. C. Do phn t metylamin phn cc mnh. D. Do phn t metylamin to c lin kt H vi H2O. Cu 177: Nguyn nhn gy nn tnh baz ca amin l : A. Do amin tan nhiu trong H2O. B. Do phn t amin b phn cc mnh. 26
C. Do nguyn t N c m in ln nn cp e chung ca nguyn t N v H b ht v pha N. D. Do nguyn t N cn cp eletron t do nn p/t amin c th nhn proton. Cu 178: Dy sp xp ng theo th t gim dn tnh baz l dy no ? (1)C6H5NH2, (2)C2H5NH2, (3)(C6H5)2NH, (4)(C2H5)2NH, (5)NaOH, (6)NH3 A. (1) > (3) > (5) > (4) > (2) > (6) B. (5) > (6) > (2) > (1) > (2) > (4) C. (5) > (4) > (3) > (5) > (1) > (2) D. (5) > (4) > (2) > (6) > (1) > (3) Cu 179: Trong bnh kn cha 35 ml hn hp gm H2, mt amin n chc v 40 ml O2. Bt tia la in phn ng chy xy ra hon ton ri a hn hp v iu kin ban u, th tch cc cht to thnh bng 20 ml gm 50% l CO2, 25% l N2 v 25% l O2. CTPT no sau y l ca amin cho ? A. CH5N B. C2H7N C. C3H6N D. C3H5N Cu 180: Nhiu phn t amino axit kt hp c vi nhau bng cch tch -OH ca nhm - COOH v -H ca nhm -NH2 to ra cht polime (gi l phn ng trng ngng). Polime c cu to mch : (- HN - CH2 - CH2 - COO - HN - CH2 - CH2 - COO - )n Monome to ra polime trn l : A. H2N - CH2 - COOH B. H2N - CH2 - CH2COOH C. H2N - CH2 - CH2 - CH2 - COOH D. Khng xc nh c Cu 181: S ng phn ca amino axit, phn t cha 3 nguyn t C l : A. 1 B. 2 C. 3 D. 4 Cu 182: X l mt aminoaxit no ch cha mt nhm -NH2 v mt nhm-COOH. Cho 0,89 gam X phn ng va vi HCl to ra 1,255g mui. CTCT ca X l : A. NH2 CH2 COOH C.CH3 CH CH2 COOH | NH2
B. D.
CH3 CH COOH | NH2
CH3 CH 2 CH 2 CH COOH | NH2
Cu 183: T l sinh ra khi t chy hon ton mt ng ng X ca glixin l 6 :
7 (phn ng sinh ra kh N2). X t/dng vi glixin cho sn phm l ipeptit. X l : CH3 CH COOH | A. B. NH2-CH2-CH2-COOH NH2 C.CH3 CH2 CH COOH | NH2
D. Kt qu khc
Cu 184: Gi tn hp cht c CTCT nh sau theo danh php thng thng. CH3 CH 2 CH 2 CH 2 N CH 2 CH 3 | CH3
27
A. Etylmetyl amino butan C. n-butyletyl metyl amin B. Metyletyl amino butan D. metyletylbutylamin Cu 185: Gi tn hp cht c CTCT nh sau theo danh php thng thng :
A. 1-amino-3-metyl benzen. C. m-toludin. B. m-metylanilin. D. C B, C. Cu 186: Amin no sau y c tnh baz ln nht : A. CH3CH=CH-NH2 B.CH3C C-NH2 C. CH3CH2CH2NH2 D. CH3CH2NH2 Cu 187: Cho cc cht sau: CH3CH2NHCH3(1), CH3CH2CH2NH2(2), (CH3)3N (3). Tnh baz tng dn theo dy : A. (1) < (2) < (3) B. (2) < (3) < (1) C. (3) < (2) < (1) D. (3) < (1) < (2) Cu 188: Cho cc cht sau: p-CH3C6H5NH2(1) m-CH3C6H5NH2 (2), C6H5NHCH3 (3) C6H5NH2 (4). Tnh baz tng dn theo dy : A. (1) < (2) < (4) < (3) B. (4) < (2) < (1) < (3) C. (4) < (3) < (2) < (1) D. (4) < (3) < (1) < (2) Cu 189: Cho cc cht sau: p-NO2C6H4NH2 (1), p-ClC6H5NH2 (2), p-CH3C6H5NH2 (3). Tnh baz tng dn theo dy : A. (1) < (2) < (3) B. (2) < (1) < (3) C. (1) < (3) < (2) D. (3) < (2) < (1) Cu 190: C bao nhiu ng phn amin ng vi CTPT C4H11N ? A. 5 B. 6 C. 7 D. 8 Cu 191: Cho cc cht sau: Ru etylic(1) etylamin(2) metylamin(3) axit axetic(4) Sp sp theo chiu c nhit si tng dn : A. (2) < (3) < (4) < (1) B. (2) < (3) < (4) < (1) C. (3) < (2) < (1) < (4) D. (1) < (3) < (2) < (4) Cu 192: Cho cc dung dch : 1) HNO2 2) FeCl2 3) CH3COOH 4) Br2 Cc dung dch tc dng c vi anilin l : A. (1), (4) B. (1), (3) C. (1), (3), (4) D. C 4 cht Cu 193: Cho phn ng : X + Y => C6H5NH3Cl. X + Y c th l : A. C6H5NH2 + Cl2. B. (C6H5)2NH + HCl. C. C6H5NH2 + HCl D. C A, B, C 28
Cu 194: Cho s : (X) => (Y) => (Z) => M (trng).
Cc cht X, Y, Z ph hp s trn l : A. X (C6H6), Y (C6H5NO2), Z (C6H5NH2) B. X (C6H5CH(CH3)2), Y (C6H5OH), Z (C6H5NH2) C. X (C6H5NO2), Y (C6H5NH2), Z (C6H5OH) D. C A v C Cu 195: Hy chn thuc th thch hp phn bit 3 cht kh sau : imetyl amin, metylamin, trimetyl amin. A. dd HCl B. dd FeCl3 C. dd HNO2 D. C B v C Cu 196: Thuc th thch hp phn bit 3 cht lng: phenol, anilin,benzen l: A. dd HNO2 B. dd FeCl3 C. dd H2SO4 D. Nc Br2 Cu 197: Phn ng no sau y sai ? C6H5NH2 + H2O => C6H5NH3OH (1) (CH3)2NH + HNO2 => 2CH3OH + N2 (2) C6H5NO2 + 3Fe + 7 HCl => C6H5NH3Cl + 3FeCl2 + 2H2O. (3)
(4) A. (1) (2) (4) B. (2) (3) (4) C. (2) (4) D. (1) (3) Cu 198: ti to li anilin t dd phenyl amoniclorua phi dng dd cht no sau y: A. dd HCl B. dd NaOH C. dd Br2 D. C A, B, C Cu 199: t chy mt amin no n chc mch thng ta thu cCO2 v H2O c t l mol 8 : 11 .CTCT ca X l A. (C2H5)2NH B. CH3(CH2)3NH2 C. CH3(NHCH2CH2CH3 D. C A, B, C Cu 200: Cho 11,8 g hn hp X gm 3 amin : n-propyl amin, etylmetylamin, trimetyl amin. Tc dng va vi V ml dung dch HCl 1M. Gi tr ca V l : A. 100ml B. 150 ml C. 200 ml D. Kt qu khc Cu 201: t chy hon ton a mol hn hp X gm 2 amin no n chc thu c 5,6 (l) CO2 (ktc) v 7,2 g H2O. Gi tr ca a l : A. 0 ,05 mol B. 0,1 mol C. 0,15 mol D. 0,2 mol Cu 202: t chy hon ton hn hp X gm 2 amin no n chc k tip nhau trong dy ng ng, thu c 22 g CO2 v 14,4 g H2O. CTPT ca hai amin l : A. CH3NH2 v C2H7N B. C3H9N v C4H11N C. C2H7N v C3H9N D. C4H11N v C5H13 N Cu 203: Cht no sau y ng thi tc dng c vi dd HCl v dd NaOH. A. C2H3COOC2H5 B. CH3COONH4 29
C. CH3CHNH2COOH
D. C A, B, C
Cu 204: Mt hp cht hu c X c CTPT C2H7O2N. X d dng phn ng vi
dung dch NaOH v dung dch HCl. CTCT ph hp ca X l : A. CH2NH2COOH B. CH3COONH4 C. HCOONH3CH3 D. C A, B v C Cu 205: Tng ng vi CTPT C3H9O2N c bao nhiu ng phn cu to va tc dng c vi dung dch NaOH va tc dng vi dung dch HCl. A. 3 B. 9 C. 12 D. 15 Cu 206: Cho 12,55 gam mui CH3CH(NH3Cl)COOH tc dng vi 150 ml dd Ba(OH)2 1M. C cn dd sau p/ng thu c m gam cht rn. Gi tr ca m l: A. 15,65 g B. 26,05 g C. 34,6 g D. Kt qu khc Cu 207: Cho 22,15 g mui gm CH2NH2COONa v CH2NH2CH2COONa tc dng va vi 250 ml dung dch H2SO4 1M. Sau phn ng c cn dung dch th lng cht rn thu c l : A. 46,65 g B. 45,66 g C. 65,46 g D. Kt qu khc Cu 208: Cho 13,35 g hh X gm CH2NH2CH2COOH v CH3CHNH2COOH tc dng vi V ml dung dch NaOH 1M thu c dung dch Y. Bit dung dch Y tc dng va vi 250 ml dung dch HCl 1M. Gi tr ca V l : A. 100 ml B. 150 ml C. 200 ml D. 250 ml Cu 209: Cho 20,15 g hn hp X gm (CH2NH2COOH v CH3CHNH2COOH) tc dng vi 200 ml dung dch HCl 1M thu c dung dch Y. Y tc dng va vi 450 ml dung dch NaOH 1M . Phn trm khi lng ca mi cht trong X l: A. 55,83 % v 44,17 % B. 58,53 % v 41,47 % C. 53,58 % v 46,42 % D. 52,59 % v 47,41% Cu 210: Cho 4,41 g mt aminoaxit X tc dng vi dung dch NaOH d cho ra 5,73 g mui. Mt khc cng lng X nh trn nu cho tc dng vi dung dch HCl d thu c 5,505 g mui clorua. Xc nh CTCT ca X. A. HOOC-CH2CH2CH(NH2)COOH B. CH3CH(NH2)COOH C. HOOCCH2CH(NH2)CH2COOH D. C A v B Cu 211: Mt amino axit (X) c cng thc tng qut NH2RCOOH. t chy hon ton a mol X thu c 6,72 (l) CO2 (ktc) v 6,75 g H2O. CTCT ca X l: A. CH2NH2COOH B. CH2NH2CH2COOH C. CH3CH(NH2)COOH D. C B v C Cu 212: Cht no sau y c tnh baz mnh nht ? A. NH3 B. C6H5NH2 C. CH3-CH2-CH2-NH2 D. CH3-CH(CH3)-NH2 Cu 213: Mt amino axit no X ch cha mt nhm -NH2 v mt nhm -COOH. Cho 0,89 g X phn ng va vi HCl to ra 1,255 g mui. CTCT ca X l: A. H2N-CH2-COOH B. CH3-CH(NH2)-CH2-COOH C. H2N-CH2-CH2-COOH D. B, C, u ng. 30
Cu 214: A + HCl => RNH3Cl. Trong (A) (CxHyNt) c % N = 31,11%
CTCT ca A l : A. CH3 - CH2 - CH2 - NH2 B. CH3 - NH - CH3 C. C2H5NH2 D. C2H5NH2 v CH3 - NH - CH3 Cu 215: L do no sau gii thch tnh baz ca monoetylamin mnh hn amoniac: A. Nguyn t N cn i electron cha to lin kt B. nh hng y electron ca nhm -C2H5 C. Nguyn t N c m in ln D. Nguyn t nit trng thi lai hoCu 216: Nhng cht no sau y lng tnh :
A. NaHCO3 B. H2N-CH2-COOH C. CH3COONH4 D. C A, B, C Cu 217: Ngi ta iu ch anilin bng cch nitro ho 500 g benzen ri kh hp cht nitro sinh ra. Khi lng anilin thu c l bao nhiu bit rng hiu sut mi giai on u t 78%. A. 362,7 g B. 463,4 g C. 358,7 g D. 346,7 g Cu 218: 9,3 g mt ankylamin cho tc dng vi dung dch FeCl3 d thu c 10,7 g kt ta. CTCT l : A. C2H5NH2 B. C3H7NH2 C. C4H9NH2 D. CH3NH2 Bi 219: (A) l mt hp cht hu c c CTPT C 5H11O2N. un (A) vi dung dch NaOH thu c mt hp cht c CTPT C2H4O2NNa v cht hu c (B). Cho hi qua CuO/t0 thu c cht hu c (D) c kh nng cho phn ng trng gng. CTCT ca A l : A. CH2 = CH - COONH3 - C2H5 B. CH3(CH2)4NO2 C. H2N- CH2 - CH2 - COOC2H5 D. NH2 - CH2COO - CH2 - CH2 - CH3 Bi 220: Dung dch etylamin c tc dng vi d ca mui no di y : A. FeCl3 B. NaCl C. Hai mui FeCl3 v NaCl D. AgNO3 Bi 221: Sp xp cc hp cht sau y theo th t gim dn tnh baz : (1) C6H5NH2 (2) C2H5NH2 (3) (C6H5)2NH (4) (C2H5)2NH (5) NaOH (6) NH3 A. (5) > (4) > (2) > (1) > ( 3) > (6) B. (1) > (3) > (5) > (4) > (2) > (6) C. (4) > (5) > ( 2) > (6) > ( 1) > (3) D. (5) > (4) > (2) > (6) > (1) > (3) Bi 222: Nhit si ca C4H10 (1), C2H5NH2 (2), C2H5OH (3) tng dn theo th t: A. (1) < (2) < (3) B. (1) < (3) < (2) C. (2) < ( 3) < (1) D. (2)
