THI TUYN SINH I HC 2010-KA

Tng hp l thuyt trong thi H

Cu 1: Polime sau y c iu ch bng phng php trng ngng:

A. cao su BunaB. P.V.C

C. thu tinh hu c D. nilon 6.6

Cu2: Cho cc cht Na2O, Fe2O3, Cr2O3, Al2O3, CuO. S oxit b H2 kh khi nung nng l:

A. 4

B. 3

C. 1

D. 2

Cu 3: Dy cc cht u tc dng vi dung dch Fe(NO3)2:

A. AgNO3, NaOH, Cu

B. AgNO3, Br2, NH3

C. NaOH, Mg, KCl

D. KI, Br2, NH3Cu 6: Trong cc dung dch (NH4)2SO4, AlCl3, NaHSO4, NaHCO3, BaCl2, Na2CO3 s dung dch c pH > 7 l:A. 1

B. 2

C. 3

D. 4

Cu7: Khi cho isopentan th Clo (t l1:1) c nh sng khuch tn th s dn xut monoclo thu c l:A. 1

B. 5

C. 3

D. 4

Cu 8: phn bit cc cht lng gm: C6H5OH, C2H5OH, CH3COOH v

CH2 = CH - COOH ta dng ho cht:

A. qu tmB. dd Br2 C. CaCO3 v dd Br2 D. ddHCl v NaOH

Cu 9: Dy gm cc cht u tc dng c vi dung dch FeCl3:

A. Na2CO3, NH3, KI, H2S

B. Fe, Cu, HCl, AgNO3

C. Br2, NH3, Fe, NaOH

D. NaNO3, Cu, KMnO4, H2S

Cu 10: Cc dung dch HCl, H2SO4, CH3COOH c cng pH th nng mol/l xp theo th t tng dn l:

A. CH3COOH, HCl, H2SO4

B. HCl, H2SO4, CH3COOH

C. HCl, CH3COOH, H2SO4

D. H2SO4, HCl, CH3COOH

Cu13: Cho cc mui Cu(NO3)2, AgNO3, NH4NO3, KNO3 s mui b nhit phn to ra NO2 l:

A. 1

B. 2

C. 3

D. 4

Cu 14: Trong cc cht: CH2 = CH2, CH C - CH3 , CH2 = CH - C CH,

CH2 = CH - CH = CH2, CH3 - C C - CH3, benzen, toluen. S cht tc dng vi Ag2O/NH3 l:

A. 1

B. 2

C. 3

D. 4

Cu 15: Nh t t dung dch NaHSO4 n d vo dung dch NaAlO2 th :

A. khng c hin tng

B. c kt ta, sau tan

C. to b mt phn cch, sau tan

D. ch c kt ta

Cu 16: Khi thu phn tinh bt trong mi trng axit v c, sn phm cui cng l:

A. glucoz

B. fructoz

C. saccaroz

D. mantoz

Cu 17: phn bit cc dung dch ring bit mt nhn gm: glucoz, sacaroz, andehit axetic, protit, ru etylic, h tinh bt, ta dng thuc th:

A. I2 v Cu(OH)2, t0

B. I2 v Ag2O/NH3

C. I2 v HNO3

D. Ag2O/NH3, HNO3, H2 (to)

Cu 18: Dy cc cht u tc dng c vi xenluloz:

A. Cu(OH)2, HNO3

B. , HNO3

C. AgNO3/NH3, H2O (H+)

D. AgNO3/NH3, CH3COOH

Cu 19: Trong cc cht: C6H5NH2, CH3NH2, CH3 CH2NH CH3, CH3CH2CH2NH2, cht c tnh baz mnh nht l:

A. C6H5NH2

B. CH3NH2

C. CH3 CH2 NHCH3

D. CH3CH2CH2NH2

Cu 20: Cho m gam hn hp Ba v Al vo H2O d thu 0,4 mol H2, cng m gam hn hp trn cho vo dung dch NaOH d thu 3,1 mol H2 gi tr ca m l:

A. 67,7 gam

B. 94,7 gam

C. 191 gam

D. 185 gam.

Cu 21: Cho s C8H15O4N + 2NaOH C5H7O4NNa2 + CH4O + C2H6O

Bit C5H7O4NNa2 c mch cacbon khng phn nhnh, c -NH2 ti th C8H15O4N c s CTCT ph hp l:

A. 1

B. 2

C. 3

D. 4

Cu 22: Cho Al t t n d vo dung dch hn hp Cu(NO3)2, AgNO3, Mg(NO3)2, Fe(NO3)3 th th t cc ion b kh l:

A. Fe3+, Ag+, Cu2+, Mg2+

B. Ag+, Cu2+, Fe3+, Mg2+

C. Ag+, Fe3+, Cu2+, Fe2+

D. Ag+, Fe3+, Cu2+, Mg2+Cu 23: Trong cc loi t: t tm, t visco, t xenluloz axetat, t capron, t nilon 6.6, s t tng hp l:

A. 1

B. 2

C. 3

D. 4

Cu 24: Cho cc cht: CH3COOC2H5, C6H5NH2, C2H5OH, C6H5CH2OH, C6H5OH, C6H5NH3Cl , s cht tc dng vi dung dch NaOH l:

A. 1

B. 2

C. 3

D. 4

Cu 25: Cho hn hp propen v buten-2 tc dng vi H2O c xc tc th s ru to ra l:

A. 2

B. 4

C. 3

D. 5

Cu 27: Cho kim loi X vo dung dch (NH4)2SO4 d, sau phn ng to 1 cht rn khng tan v c kh thot ra. X l:

A. Na

B. Ba

C. Fe

D. Mg

Cu 28: Cho 1 ru n chc X tc dng vi H2SO4 c, un nng thu c cht Y c t khi hi so vi X bng 1,7. X l:

A. C2H5OH

B. C3H5OH

C. C3H7OH

D. C4H9OH

Cu 29: Cht X tc dng vi NaOH, chng ct c cht rn Y v phn hi Z. Cho Z tham gia phn ng trng gng vi AgNO3/NH3 c cht T, cho T tc dng vi NaOH thu c cht Y, vy X l:

A. CH3COO - CH = CH - CH3

B. CH3COO - CH = CH2

C. HCOO - CH = CH2

D. HCOO - CH = CH - CH3Cu 30: Dy gm cc cht u phn ng vi Glixerin l:

A. Cu(OH)2, Na, NaOH.

B. HNO3, Fe(OH)2, CH3COOH

C. Cu(OH)2, Na, HNO3

D. CaCO3, Cu(OH)2, CH3COOH

Cu 31: Khi sc clo vo dung dch NaOH 100oC th sn phm thu c cha clo c s oxi ho:

A. 1

B. 1 v +5

C. 1 v +1

D. 1 v +7

Cu 32: Cho s :

C6H6 X Y Z - OH

NH2Th X, Y, Z tng ng l:

A. C6H5Cl, C6H5OH, m - HO - C6H4 - NO2

B. C6H5NO2, C6H5NH2, m - HO - C6H4-NO2

C. C6H5Cl, m - Cl - C6H4 - NO2, m - HO - C6H4NO2

D. C6H5NO2, m - Cl - C6H4-NO2, m - HO - C6H4 - NO2

Cu 33: Trong cc cht C6H5OH, C6H5COOH, C6H6, C6H5-CH3 cht kh th brom nht l:

A. C6H5OH

B. C6H5COOH

C. C6H6

D. C6H5CH3

Cu 36: in phn dung dch cha a mol NaCl v b mol CuSO4 vi in cc tr mng ngn xp n khi H2O u b in phn 2 cc th dng li, dung dch thu c lm xanh qu tm. Vy:

A. a = b

B. a = 2b

C. a < 2b

D. a > 2b

Cu 38: Dy gm cc cht u tc dng vi Cu:

A. dd AgNO3, O2, dd H3PO4, Cl2

B. dd FeCl3, Br2, dd HCl ho tan O2, dd HNO3

C. dd FeCl3, dd HNO3, dd HCl , S

D. dd FeSO4, dd H2SO4 , Cl2, O3Cu 39: T hn hp bt Fe, Cu, Ag tch ly Ag nguyn cht ta dng:

A. dung dch HNO3

B. dung dch CuSO4

C. dung dch FeCl3

D. dung dch FeCl2Cu 40: Qu trnh sau khng xy ra s n mn in ho:

A. vt bng Al - Cu trong khng kh m

B. cho vt bng Fe vo dung dch H2SO4 long cho thm vi git dung dch CuSO4

C. phn v tu bng Fe ni vi tm Zn trong nc bin

D. nung vt bng Fe ri nhng vo H2O.

Cu 42: Axit metacrylic khng c phn ng vi:

A. CaCO3

B. dd Br2

C. C2H5OH

D. C6H5OH

Cu 44: Dy gm cc cht va tc dng vi dung dch HCl, va tc dng vi dung dch NaOH:

A. Ca(HCO3)2, ZnCl2, Cr2O3, Al(OH)3B. NaHCO3, CrO3, ZnO, Al(OH)3

C. NaAlO2, Al2O3, Al(OH)3, Zn(OH)2D. Cr2O3, Al2O3, NaHCO3, Zn(OH)2Cu 45: Khi cho dung dch NaOH vo dung dch K2Cr2O7 th:

A. dung dch mu vng chuyn thnh mu da cam

B. dung dch khng mu chuyn thnh mu vng

C. dung dch mu da cam chuyn thnh mu vng

D. dung dch mu da cam chuyn thnh khng mu

Cu 46: Nguyn t c Z = 24 , c s electron c thn l:

A. 1

B. 4

C. 5

D. 6

Cu 47: Cho t t n d NH3 vo dung dch hn hp FeCl3, ZnCl2, AlCl3, CuCl2. Ly kt ta em nung n khi lng khng i c cht rn X. Cho CO d i qua X nung nng th cht rn thu c cha:

A. ZnO, Cu, Fe.

B. Al2O3, ZnO, Fe

C. Al2O3, Fe

D. ZnO, Cu, Al2O3, Fe

Cu 48: nhn bit cc cht rn ring bit mt nhn gm: NaCl, Na2CO3, CaCO3, BaSO4 ta dng ho cht l:

A. dung dch HCl v CO2

B. H2O v CO2

C. dung dch NaOH v CO2

D. dung dch NaOH v dung dch HCl

Cu 49: Cho hn hp gm 0,2 mol Fe v 0,3 mol Mg vo dung dch HNO3 d thu c 0,4 mol mt sn phm kh cha N duy nht, sn phm l:

A. NH4NO3

B. N2O

C. NO

D. NO2Cu 50: mt vt bng Ag lu ngy trong khng kh th b xm en do:

A. tc dng vi O2

B. tc dng vi CO2

C. tc dng vi H2S

D. tc dng vi O2 v H2S

Cu 45: Axit picric to ra khi cho HNO3 c c xc tc H2SO4 c tc dng vi:

A. C6H5COOH B. C6H5NH2

C. C6H5OH

D. C6H5NO2

Cu 46: Cho Fe3O4 vo H2SO4 long, d thu c dung dch X. Dy gm cc cht u tc dng vi dung dch X:

A. KMnO4, Br2, Cu

B. Br2, KMnO4, HCl

C. Br2, Cu, Ag

D. Fe, NaOH, Na2SO4Cu 48: Hirocacbon X tc dng vi dung dch brm thu c 1,3 i brm butan. X l:

A. buten - 1 B. buten - 2 C. 2 - metyl propen D. metyl xiclopropan

Cu 49: tch ring C6H5OH v C6H5NH2 khi hn hp (dng c th nghim y ) ta dng ho cht:

A. dd NaOH v d2HCl B. dd NaOH v dd Br2

C. dd HCl v Br2

D. dd HCl v CO2Cu 50: Nguyn t nguyn t Fe c z = 26, cu hnh electron ca Fe2+ l:

A. 1s22s22p63s23p63d64s2

B. 1s22s22p63s23p63d8C. 1s22s22p63s23p63d6

D. 1s22s22p63s23p63d44s2Khi A mn Ho nm hc 2007-2008

Cu 1: Cho cc phn ng:

(1) Cu(NO3)2 (2) NH4NO2

(3) NH3 + O2 (4) NH3 + Cl2

(5) NH4Cl (6) NH3 + CuO

Cc phn ng u to kh N2 l:

A. (2), (4), (6). B. (1), (2), (5). C. (1), (3), (4). D. (3), (5), (6).

Cu 2: Cho cc cht : Al, Al2O3, Al2(SO4)3, Zn(OH)2, NaHS, , (NH4)2CO3 . S cht u phn ng c vi dung dch HCl, dung dch NaOH l:

A. 7. B. 6. C. 4. D. 5.

Cu 5: Cho Cu vo dung dch H2SO4 long tc dng vi cht X ( mt loi phn bn ho hc), thy kh thot ra khng mu ho nu trong khng kh. Mt khc, khi X tc dng vi dung dch NaOH th kh c mi khai thot ra. Cht X l:

A. Ure. B. amoni nitrat. C. amophot. D. Natri nitrat

Cu 6: Pht biu khng ng l:

A. Trong dung dch, H2N-CH2-COOH cn tn ti dng ion lng cc H3N+-CH2-COO-B. Aminoaxit l nhng cht rn, kt tinh, tan tt trong nc va c v ngt.

C. Aminoaxit l hp cht hu c tp chc, phn t cha ng thi nhm amino v nhm cacboxyl.

D. Hp cht H2N-CH2-COOH3N-CH3 l este ca glyxin (glixin).

Cu 7: Trong phng th nghim, ngi ta iu ch oxi bng cch :

A. Nhit phn KClO3 c xc tc MnO2 B. Nhit phn Cu(NO3)2C. in phn nc. D. Chng ct phn on khng kh lng

Cu 9: S ng phn hirocacbon thm ng vi cng thc phn t C8H10 l:

A. 5. B. 3. C. 2. D. 4.

Cu 12: Cho cn bng h hc : 2SO2 (k) + O2 (k) ( 2SO3 (k); phn ng thun l phn ng to nhit. Pht biu ng l:

A. Cn bng chuyn dch theo chiu thun khi tng nhit .

B. Cn bng chuyn dch theo chiu thun khi gim p sut h phn ng.

C. Cn bng chuyn dch theo chiu nghch khi gim nng O2D. Cn bng chuyn dch theo chiu nghch khi gim nng SO3

Cu 14: Este c c im sau:

- t chy hon ton X to CO2 v H2O c s mol bng nhau;

-Thu phn X trong mi trng axit c cht Y ( tham gia phn ng trng gng) v cht Z (c s nguyn t cac bon bng mt na s nguyn t cacbon trong X )

Pht biu khng ng l :

A. Cht X thuc loi este no, n chc.

B. Cht Y tan v hn trong nc.

C. un Z vi dung dch H2SO4 c 1700C thu c anken.

D. t chy hon ton 1 mol X sinh ra s phm gm 2 mol CO2 v 2 mol H2O.

Cu 15: Khi in phn NaCl nng chy ( in cc tr) ti catt xy ra :

A. S kh ion Na+ B. S kh ion Cl- C. S oxi ha ion Cl- D. S oxi ho ion Na+Cu 18: S ng phn este ng vi cng thc phn t C4H8O2 l:

A. 6. B. 4. C. 5. D. 2.

Cu 19: Dy gm cc cht c xp theo chiu nhit si tng dn t tri sang phi l:

A. CH3CHO, C2H5OH, C2H6, CH3COOH. B. C2H6, C2H5OH, CH3CHO, CH3COOH.

C. C2H6, CH3CHO, C2H5OH, CH3COOH D. CH3COOH, C2H6, CH3CHO, C2H5OH

Cu 21: Bn knh nguyn t ca cc nguyn t: , , , c xp theo th t tng dn t tri sang phi l:

A. Li, Na, O, F. B. F, O, Li, Na. C. F, Li, O, Na. D. F, Na, O, Li.

Cu 24: T 2 mui X v Y thc hin cc phn ng:

X X1 + CO2

X1 + H2O X2X2 + Y X+ Y1 + H2O X2 + 2Y X+ Y2 + 2H2O

Hai mui tng ng X v Y l:

A. CaCO3, NaHCO3. B. MgCO3, NaHCO3. C. CaCO3, NaHSO4 D. BaCO3, Na2CO3Cu 25: C cc dung dch ring bit sau:

C6H5-NH3Cl( phenylamoni clorua), H2N-CH2-CH2-CH(NH2)-COOH, ClH3N-CH2-COOH, HOOC-CH2-CH(NH2)-COOH, H2N-CH2-COONa.

S lng cc dung dch c pH < 7 l:

A. 2. B. 3. C. 5. D. 4.

Cu 29: Khi tch nc t ru (ancol) 3-metylbutanol-2( hay 3-metylbutan-2-ol), sn phm chnh thu c l:

A. 2-metylbuten-3( hay 2-metylbut-3-en) B. 3-metylbuten-2 (hay 3-metylbut-2-en)

C. 3-metylbuten-1( hay 3-metylbut-1-en) D. 2-metylbuten-2 (hay 2-metylbut-2-en)

Cu 30: Hp cht c lin kt ion l:

A. HCl. B. NH3. C. H2O. D. NH4Cl

Cu 32: Cho cc phn ng:

4HCl + MnO2 MnCl2 + Cl2 + 2H2O .

2HCl + Fe FeCl2 + H2.

14HCl + K2Cr2O7 2KCl + 2CrCl3 +3Cl2 + 7H2O.

6HCl + 2KMnO4 2kCl +2MnCl2 + 5Cl2 + 8 H2O.

S phn ng th hin tnh xi ho l:

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

Cu 33: Tinh bt, xenluloz, saccaroz, mantoz u c kh nng tham gia phn ng:

A. Ho tan Cu(OH)2. B. thu phn. C. trng ngng. D. trng gng

Cu 34: Pht biu ng l:

A. tnh axit ca phenol yu hn tnh axit ca ru (ancol).

B. Cao su thin nhin l sn phm trng hp ca isopren.

C. tnh baz ca anilin mnh hn tnh baz ca amoniac.

D. Cc cht eilen, toluen v stiren u tham gia phn ng trng hp.

Cu 35: Cho glixerin trioleat ( hay triolein) ln ,lt vo mi ng nghim cha ring bit : Na, Cu(OH)2, CH3OH, dung dch Br2, dung dch NaOH. Trong iu kin thch hp, s phn ng xy ra l:

A. 5. B. 4. C. 3. D. 2.

Cu 39: Gluxit ( cacbohirat) ch cha hai gc glucoz trong phn t l:

A. xenluloz. B. tinh bt. C. saccaroz. D. Mantoz.

Cu 42: Pht biu ng l:

A. Phn ng thu phn este trong mi trng axit l phn ng thun nghch.

B. khi thu phn cht bo lun thu c C2H4(OH)2.

C. phn ng gia axit v ru khi c H2SO4 c l phn ng mt chiu.

D. Tt c cc este phn ng vi dung dch kim lun thu c sn phm cui cng l mui v ru ( anol).

Cu 44: Cho s chuyn ho sau:

C3H4O2 + NaOH X + Y

X + H2SO4 long Z + T

Bit Y v Z u c phn ng trng gng. Hai cht Y, Z tng ng l:

A. HCOONa, C3CHO. B. HCHO, CH3CHO.

C. HCHO. HCOOH. D. CH3CHO, HCOOH

Cu 46: Bit rng ion Pb2+ trong dung dch oxi ho c Sn. Khi nhng hai thanh kim loi Pb v Sn c ni vi nhau bng dy dn in vo mt dung dch cht in li th:

A. Ch c Sn b n mn in ho. B. c Pb v Sn u khng b n mn in ho.

C. c Pb v Sn u b n mn in ho. D. ch c Pb b n mn in ho.

Cu 48: Cho cc cht sau: CH2=CH-CH2-CH2- CH=CH2, CH2=CH-CH=CH-CH2-CH3, CH3-CH3-C(CH3)=CH-CH3, CH2=CH-CH2-CH=CH2, s cht c ng phn hnh hc l:

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

Cu 49: Trong cc loi qung st , qung c hm lng st cao nht l:

A. hematit . B. xierit. C. hematit nu. D. manhetit.

Cu 50: iso-pentan tc dng vi Cl2 theo t l s mol 1:1, s sn phm monoclo ti a thu c l:

A. 3. B. 5. C. 4. D. 2.

Cu 51: Lng glucoz cn to ra 1,82 g sobitol vi hiu sut 80% l:

A. 2,25gam. B. 1,82 gam. C. 1,44 gam. D. 1,8 gam.

Cu 53: Mt pin in ho c0s in cc Zn nhng trong dung dch ZnSO4 v in cc Cu nhng trong dung dch CuSO4. Sau mt thi gian pin phng in th khi lng :

A. in cc Zn gim cn in cc Cu tng .

B. c hai in cc Zn v Cu u gim.

C. c hai in cc Zn v Cu u tng

D. in cc Zn tng cn in cc Cu gim.

Cu 54: tc nhn ch yu gy ma axit l:

A. CO v CO2. B. SO2 v NO2 C. CH4 v NH3 . D. CO v CH4Cu 55: Cho s chuyn ho qung ng thnh ng:

CuFeS2 X Y Cu

Hai cht ln lt l:

A. Cu2S, Cu2O. B. Cu2O, CuO. C. CuS, CuO. D. Cu2S, CuO

Cu 56: S ng phn xeton ng vi cng thc phn t C5H10O l:

A. 5. B. 4. C. 3. D. 6.

THI TUYN SINH CAO NG NM 2009-KB

Cu 1 : Dy gm cc ion (khng k n s phn li ca nc) cng tn ti trong mt dung dch l :

A.

B.

C.

D.

Cu 2 : Trong thc t, phenol c dng sn xut

A. poli(phenol-fomanehit), cht dit c 2,4-D v axit picric

B. nha rezol, nha rezit v thuc tr su 666

C. nha poli(vinyl clorua), nha novolac v cht dit c 2,4-D

D. nha rezit, cht dit c 2,4-D v thuc n TNT

Cu 5 : Ch dng dng dch KOH phn bit c cc cht ring bit trong nhm no sau y ?

A. Zn, Al2O3, AlB. Mg, K, NaC. Mg, Al2O3, AlD. Fe, Al2O3, Mg

Cu 8 : Nguyn tc chung c dng iu ch kim loi l

A. cho hp cht cha ion kim loi tc dng vi cht kh.

B. kh ion kim loi trong hp cht thnh nguyn t kim loi.

C. oxi ho ion kim loi trong hp cht thnh nguyn t kim loi

D. cho hp cht cha ion kim loi tc dng vi cht oxi ho.

Cu 9 : Dy no sau y ch gm cc cht va tc dng c vi dung dch HCl, va tc dng c vi dung dch AgNO3 ?

A. Zn, Cu, MgB. Al, Fe, CuOC. Fe, Ni, SnD. Hg, Na, Ca

Cu 12 : Dy gm cc cht trong phn t ch c lin kt cng ho tr phn cc l

A. O2, H2O, NH3B. H2O, HF, H2SC. HCl, O3, H2SD. HF, Cl2, H2O

Cu 13 : Dy gm cc cht va tan trong dung dch HCl, va tan trong dung dch NaOH l :

A. NaHCO3, ZnO, Mg(OH)2B. Mg(OH)2, Al2O3, Ca(HCO3)2

C. NaHCO3, MgO, Ca(HCO3)2D. NaHCO3, Ca(HCO3)2, Al2O3Cu 14 : 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 16 : Cht dng lm kh kh Cl2 m l

A. dung dch H2SO4 m cB. Na2SO3 khan

C. CaO

D. dung dch NaOH c

Cu 17 : phn bit CO2 v SO2 ch cn dng thuc th l

A. dung dch Ba(OH)2

B. CaO

C. dung dch NaOH

D. nc brom

Cu 18 : Pht biu no sau y sai ?

A. Trong cng nghip c th chuyn ho cht bo lng thnh cht bo rn.

B. Nhit si ca este thp hn hn so vi ancol c cng phn t khi

C. S nguyn t hiro trong phn t este n v a chc lun l mt s chn.

D. Sn phm ca phn ng x phng ho cht bo l axit bo v glixerol

Cu 20 : S ng phn cu to ca amin bc mt c cng cng thc phn t C4H11N l

A. 2B. 5C. 4D. 3

Cu 22 : Trong cc cht : FeCl2, FeCl3, Fe(NO3)2, Fe(NO3)3, FeSO4, Fe2(SO4)3. S cht c c tnh oxi ho v tnh kh l

A. 5B. 4C. 2D. 3

Cu 23 : S hp cht l ng phn cu to, c cng cng thc phn t C4H8O2, tc dng c vi dung dch NaOH nhng khng tc dng c vi Na l

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

Cu 24 : Cht kh X tan trong nc to ra mt dung dch lm chuyn mu qu tm thnh v c th c dng lm cht ty mu. Kh X l

A. NH3B. O3C. SO2D. CO2

Cu 26 : Cho cc cn bng sau :

Khi thay i p sut, nhm gm cc cn bng ho hc u khng b chuyn dch l

A. (1) v (3)B. (2) v (4)C. (3) v (4)D. (1) v (2)

Cu 28 : Cht X c cng thc phn t C3H7O2N v lm mt mu dung dch brom. Tn gi ca X l

A. axit (-aminopropionicB. mety aminoaxetat

C. axit (- aminopropionicD. amoni acrylat

Cu 29 : Dy gm cc cht c th iu ch trc tip (bng mt phn ng) to ra axit axetic l :

A. C2H4(OH)2, CH3OH, CH3CHOB. CH3CHO, C2H5OH, C2H5COOCH3

C. CH3OH, C2H5OH, CH3CHOD. CH3CHO, C6H12O6 (glucoz), CH3OH

Cu 30 : Cho cc cht HCl (X); C2H5OH (Y); CH3COOH (Z); C6H5OH (phenol) (T). Dy gm cc cht c sp xp theo tnh axit tng dn (t tri sang phi) l :

A. (X), (Z), (T), (Y)B. (Y), (T), (Z), (X)C. (Y), (T), (X), (Z)D. (T), (Y), (X), (Z)

Cu 31 : t chy hon ton 7,2 gam kim loi M (c ho tr hai khng i trong hp cht) trong hn hp kh Cl2 v O2. Sau phn ng thu c 23,0 gam cht rn v th tch hn hp kh phn ng l 5,6 lt ( ktc). Kim loi M l

A. BeB. CuC. CaD. Mg

Cu 33 : Cho cc cht : xiclobutan, 2-metylpropen, but-1-en, cis-but-2-en, 2-metylbut-2-en. Dy gm cc cht sau khi phn ng vi H2 (d, xc tc Ni, to), cho cng mt sn phm l :

A. 2-metylpropen, cis-but-2-en v xiclobutanB. but-1-en, 2-metylpropen v cis-but-2-en

C. xiclobutan, cis-but-2-en v but-1-enD. xiclobutan , 2-metylbut-2-en v but-1-en

Cu 41 : Phn bn nitrophotka (NPK) l hn hp ca

A. (NH4)2HPO4 v KNO3B. (NH4)2HPO4 v NaNO3

C. (NH4)3PO4 v KNO3D. NH4H2PO4 v KNO3

Cu 46 : Cho cc chuyn ho sau

X, Y v Z ln lt l :

A. tinh bt, glucoz v ancol etylicB. tinh bt, glucoz v kh cacbonic

C. xenluloz, glucoz v kh cacbon oxitD. xenluloz, frutoz v kh cacbonic

Cu 49 : Qu trnh no sau y khng to ra anehit axetic?

A. CH2=CH2 + H2O (to, xc tc HgSO4)B. CH2=CH2 + O2 (to, xc tc)

C. CH3-CH2OH + CuO (to)D. CH3-COOCH=CH2 + dung dch NaOH (to)

Cu 50 : Cho cn bng (trong bnh kn) sau :

(H < 0

Trong cc yu t : (1) tng nhit ; (2) thm mt lng hi nc; (3) thm mt lng H2; (4) tng p sut chung ca h; (5) dng cht xc tc.

Dy gm cc yu t u lm thay i cn bng ca h l :

A. (1), (4), (5)B. (1), (2), (4)C. (1), (2), (3)D. (2), (3), (4)

Cu 51 : Cho tng cht ln lt tc dng vi dung dch NaOH (t0). S phn ng xy ra l

A. 3B. 5C. 6D. 4

Cu 53 : Cho cc cn bng sau :

nhit xc nh, nu KC ca cn bng (1) bng 64 th KC bng 0,125 l ca cn bng

A. (5)B. (2)C. (3)D. (4)

Cu 54: Hai hp cht hu c X, Y c cng cng thc phn t C3H6O2. C X v Y u tc dng vi Na; X tc dng c vi NaHCO3 cn Y c kh nng tham gia phn ng trng bc. Cng thc cu to ca X v Y ln lt l

A. C2H5COOH v CH3CH(OH)CHO.B. C2H5COOH v HCOOC2H5.

C. HCOOC2H5v HOCH2CH2CHO.D. HCOOC2H5 v HOCH2COCH3.

Cu 56: Dy gm cc cht u tc dng vi ancol etylic l:

A. NaOH, K, MgO, HCOOH (xc tc).

B. Na2CO3, CuO (to), CH3COOH (xc tc), (CH3CO)2O.

C. Ca, CuO (to), C6H5OH (phenol), HOCH2CH2OH.

D. HBr (to), Na, CuO (to), CH3COOH (xc tc).

Cu 58: Th t mt s cp oxi ha kh trong dy in ha nh sau: Mg2+/Mg; Fe2+/Fe; Cu2+/Cu; Fe3+/Fe2+; Ag+/Ag. Dy ch gm cc cht, ion tc dng c vi ion Fe3+ trong dung dch l:

A. Mg, Fe, Cu.B. Mg,Cu, Cu2+.C. Fe, Cu, Ag+. D. Mg, Fe2+, Ag.

Cu 59: Cho cc cht: CH2=CHCH=CH2; CH3CH2CH=C(CH3)2; CH3CH=CHCH=CH2; CH3 CH =CH2; CH3CH=CHCOOH. S cht c ng phn hnh hc l

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

THI TUYN SINH CAO NG NM 2010 -KACu 1 : Cht rn X phan ng vi dung dich HCl c dung dich Y. Cho t t dung dich NH3 n d vao dung dich Y, ban u xut hin kt tua xanh, sau o kt tua tan, thu c dung dich mau xanh thm. Cht X la

A. FeOB. FeC. CuOD. Cu

Cu 4 : Thuy phn hoan toan tinh bt trong dung dich axit v c loang, thu c cht hu c X. Cho X phan ng vi khi H2 (xuc tac Ni, t0), thu c cht hu c Y. Cac cht X, Y ln lt la

A. glucoz, saccaroz

B. glucoz, sobitol

C. glucoz, fructoz

D. glucoz, etanol

Cu 8 : Cho bit th t t trai sang phai cua cac cp oxi hoa - kh trong day in hoa (day th in cc chun) nh sau : Zn2+/Zn ; Fe2+/Fe; Cu2+/Cu; Fe3+/Fe2+; Ag+/Ag. Cac kim loai va ion u phan ng c vi ion Fe2+ trong dung dich la

A. Zn, Cu2+ B. Ag, Fe3+ C. Ag, Cu2+ D. Zn, Ag+

Cu 9 : Polime nao sau y c tng hp bng phan ng trung ngng ?

A. poliacrilonitrin B. poli(metyl metacrylat)

C. polistiren

D. poli(etylen terephtalat)

Giai: poli(etylen terephtalat) c tao thanh t phan ng trung ngng elylenglicol va axi terephtalicCu 10 : ng vi cng thc phn t C2H7O2N co bao nhiu cht va phan ng c vi dung dich NaOH va phan ng c vi dung dich HCl ?

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

Giai: HCOOH3NCH3 va CH3COONH4Cu 11 : Hoa tan hn hp gm : K2O, BaO, Al2O3, Fe3O4 vao nc (d), thu c dung dich X va cht rn Y. Suc khi CO2 n d vao dung dich X, sau khi cac phan ng xay ra hoan toan thu c kt tua la

A. K2CO3B. Fe(OH)3 C. Al(OH)3 D. BaCO3

Giai: Al2O3 + 2OH + 3H2O 2Al(OH)

Al(OH) + CO2 Al(OH)3 + HCO

Cu 14 : Lin kt hoa hoc gia cac nguyn t trong phn t H2O la lin kt

A. cng hoa tri khng phn cc B. hiro

C. ion D. cng hoa tri phn cc

Cu 15 : Phat biu ung la

A. Phenol phan ng c vi dung dich NaHCO3

B. Phenol phan ng c vi nc brom

C. Vinyl axetat phan ng vi dung dich NaOH sinh ra ancol etylic

D. Thuy phn benzyl clorua thu c phenol

Giai: Phan ng tao kt tua trng dung nhn bit phenol.Cu 16 : Thuy phn cht hu c X trong dung dich NaOH (d), un nong, thu c san phm gm 2 mui va ancol etylic. Cht X la

A. CH3COOCH2CH3 B. CH3COOCH2CH2Cl

C. ClCH2COOC2H5 D. CH3COOCH(Cl)CH3

Giai: ClCH2COOC2H5+ 2NaOH HO-CH2-COONa + NaCl + C2H5OHCu 17 : Phat biu nao sau y ung ?

A. Dung dich NaF phan ng vi dung dich AgNO3 sinh ra AgF kt tua

B. Iot co ban kinh nguyn t ln hn brom

C. Axit HBr co tinh axit yu hn axit HCl

D. Flo co tinh oxi hoa yu n clo

Cu 18 : Cho cac dung dich loang: (1) FeCl3, (2) FeCl2, (3) H2SO4, (4) HNO3, (5) hn hp gm HCl va NaNO3. Nhng dung dich phan ng c vi kim loai Cu la

A. (1), (2), (3) B. (1), (3), (5) C. (1), (4), (5) D. (1), (3), (4)

Giai: FeCl3, HNO3 , hp gm HCl va NaNO3Cu 23 : Cho cn bng hoa hoc : PCl5(k) PCl3 (k) + Cl2(k) H > 0

Cn bng chuyn dich theo chiu thun khi

A. thm PCl3 vao h phan ng B. tng nhit cua h phan ng C. thm Cl2 vao h phan ng D. tng ap sut cua h phan ng

Giai: Tng nhit cn bng chuyn dich theo chiu phan ng thu nhit H > 0Cu 28 : ng vi cng thc phn t C3H6O c bao nhiu hp cht mch h bn khi tc dng vi kh H2 (xc tc Ni, t0) sinh ra ancol ?

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

Giai: CH3CH2CHO; CH2=CH-CH2-OH; CH3COCH3Cu 29 : Cho phn ng

Na2SO3 + KMnO4 + NaHSO4 ( Na2SO4 + MnSO4 + K2SO4 + H2O

Tng h s ca cc cht (l nhng s nguyn, ti gin) trong phng trnh phn ng l

A. 23 B. 27 C. 47 D. 31

Giai: 5Na2SO3 + 2KMnO4 + 6NaHSO4 ( 8Na2SO4 + 2MnSO4 + K2SO4 + 3H2OCu 30 : Nh t t dung dch NaOH n d vo dung dch X. Sau khi cc phn ng xy ra hon ton ch thu c dung dch trong sut. Cht tan trong dung dch l

A. AlCl3 B. CuSO4 C. Fe(NO3)3D. Ca(HCO3)2

Cu 33 : Hai cht X v Y c cng cng thc phn t C2H4O2. Cht X phn ng c vi kim loi Na v tham gia phn ng trng bc. Cht Y phn ng c vi kim loi Na v ho tan c CaCO3. Cng thc ca X, Y ln lt l

A. HOCH2CHO, CH3COOH B. HCOOCH3, HOCH2CHO

C. CH3COOH, HOCH2CHO D. HCOOCH3, CH3COOH

Giai: X co nguyn t H linh ng va nhom CHO, Y co nhom COOHCu 34 : Anehit no mch h X c cng thc n gin nht C2H3O. Cng thc phn t ca X l

A. C8H12O4 B. C6H9O3 C. C2H3O D. C4H6O2Giai: CTTQ cua andehit (C2H3O)n ( n = ( n = 2Cu 35 : Cho s chuyn ho sau :

Cng thc ca X, Y, Z ln lt l

A. Cl2, AgNO3, MgCO3 B. Cl2, HNO3, CO2

C. HCl, HNO3, Na2NO3 D. HCl, AgNO3, (nh4)2CO3Cu 39 : S lin tip ( (xch ma) c trong mi phn t: etilen; axetilen; buta-1,3-ien ln lt l

A. 3; 5; 9 B. 5; 3; 9 C. 4; 2; 6 D. 4; 3; 6

Cu 43 : Oxi ho khng hon ton ancol isopropylic bng CuO nung nng, thu c cht hu c X. Tn gi ca X l

A. metyl phenyl xeton B. propanal C. metyl vinyl xetonD. imetyl xetonCu 44 : Thuc th dng phn bit dung dch NH4NO3 vi dung dch (NH4)2SO4 l

A. dung dch NaOH v dung dch HCl B. ng(II) oxit v dung dch HCl

C. ng(II) oxit v dung dch NaOH D. kim loi Cu v dung dch HCl

Giai: Hin tng NH4NO3 co khi khng mau bay ln hoa nu trong khng khi, dung dich thu c co mau xanh lam.Cu 45 : Pht biu no sau y khng ng?

A. Crom(VI) oxit l oxit baz

B. Ancol etylic bc chy khi tip xc vi CrO3

C. Khi phn ng vi dung dch HCl, kim loi Cr b oxi ho thnh ion Cr2+

D. Crom(III) oxit v crom(II) hiroxit u l cht c tnh lng tnh

Giai: CrO3 la oxit axitCu 46 : Sn phm ca phn ng nhit phn hon ton AgNO3 l

A. Ag, NO2, O2 B. Ag2O, NO, O2 C. Ag, NO, O2 D. Ag2O, NO2, O2

Cu 47 : Cp cht no sau y khng phi l ng phn ca nhau?

A. Ancol etylic v imetyl ete B. Glucoz v fructoz

C. Saccaroz v xenluloz D. 2-metylpropan-1-ol v butan-2-ol

Giai: Saccaroz (C12H22O11) v xenluloz (C6H10O5)nCu 48 : Nu thu phn khng hon ton pentapeptit Gly-Ala-Gly-Ala-Gly th thu c ti a bao nhiu ipeptit khc nhau?

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

Giai: Gly-Ala va Ala-Gly

Cu 51: Cht no sau y c ng phn hnh hc?

A. But-2-inB. But-2-enC. 1,2-icloetanD. 2-clopropen

Cu 52: S amin thm bc mt ng vi cng thc phn t C7H9N l

A. 2B. 4C. 5D. 3

Giai: C6H5-CH2-NH2; CH3-C6H4-NH2 (3 cng thc)

(Vi ap an nay phai hiu amin thm la amin co cha vong benzen ???)anot bng graphit (in cc tr) u c c im chung l

A. catot xy ra s oxi ha: 2H2O +2e ( 2OH( +H2

B. anot xy ra s kh: 2H2O ( O2 + 4H+ +4e

C. anot xy ra s oxi ha: Cu ( Cu2+ +2e

D. catot xy ra s kh: Cu2+ + 2e ( Cu

Cu 57: Dung dch no sau y c pH > 7 ?

A. Dung dch NaCl

B. Dung dch NH4Cl

C. Dung dch Al2(SO4)3D. Dung dch CH3COONa

Giai: Dung dich mui cua axit yu baz manhCu 60: Kh nng phn ng th nguyn t clo bng nhm OH ca cc cht c xp theo chiu tng dn t tri sang phi l:

A. anlyl clorua, phenyl clorua, propyl cloruaB. anlyl clorua, propyl clorua, phenyl clorua

C. phenyl clorua, anlyl clorua, propyl clorua D. phenyl clorua, propyl clorua, anlyl clorua

THI TUYN SINH I HC NM 2010-KB

Cu 1 : Hp cht hu c mch h X c cng thc phn t C6H10O4. Thy phn X to ra hai ancol n chc c s nguyn t cacbon trong phn t gp i nhau. Cng thc ca X l

A. CH3OCO-CH2-COOC2H5.

B. C2H5OCO-COOCH3.

C. CH3OCO-COOC3H7.

D. CH3OCO-CH2-CH2-COOC2H5.

Gii: Ch c este to thnh t 2 ancol: CH3OH v C2H5OH tha mn

Cu 4: Phng php loi b tp cht HCl c ln trong kh H2S l: Cho hn hp kh li t t qua mt lng d dung dch

A. Pb(NO3)2.

B. NaHS.

C. AgNO3.

D. NaOH.

Gii: Dng NaHS. V cc cht cn li u tc dng vi H2SCu 5: Pht biu no sau y khng ng khi so snh tnh cht ha hc ca nhm v crom?

A. Nhm v crom u b th ng ha trong dung dch H2SO4 c ngui.

B. Nhm c tnh kh mnh hn crom.

C. Nhm v crom u phn ng vi dung dch HCl theo cng t l v s mol.

D. Nhm v crom u bn trong khng kh v trong nc.

Gii: Al tc dng vi HCl to AlCl3 cn Cr tc dng vi HCl to CrCl2Cu 6: Hai hp cht hu c X v Y c cng cng thc phn t l C3H7NO2, u l cht rn iu kin thng. Cht X phn ng vi dung dch NaOH, gii phng kh. Cht Y c phn ng trng ngng. Cc cht X v Y ln lt l

A. vinylamoni fomat v amoni acrylat.

B. amoni acrylat v axit 2-aminopropionic.

C. axit 2-aminopropionic v amoni acrylat.

D. axit 2-aminopropionic v axit 3-aminopropionic.

Gii: CH2=CH-COONH4 (tc dng NaOH to kh NH3) v CH3-CH(NH2)-COOH c phn ng trng ngngCu 8: Cho dung dch Ba(HCO3)2 ln lt vo cc dung dch: CaCl2, Ca(NO3)2, NaOH, Na2CO3, KHSO4, Na2SO4, Ca(OH)2, H2SO4, HCl. S trng hp c to ra kt ta l

A. 4.

B. 7.

C. 5.

D. 6.Gii: Ba(HCO3)2 tc dng vi cc cht to kt ta l: NaOH, Na2CO3, KHSO4, Na2SO4, Ca(OH)2, H2SO4.Cu 11: Cc cht m phn t khng phn cc l:

A. HBr, CO2, CH4.

B. Cl2, CO2, C2H2.

C. NH3, Br2, C2H4.

D. HCl, C2H2, Br2.

Gii: Cl2 (), CO2 v C2H2 c lai ha spCu 12: Mt ion M3+ c tng s ht proton, ntron, electron l 79, trong s ht mang in nhiu hn s ht khng mang in l 19. Cu hnh electron ca nguyn t M l

A. [Ar]3d54s1.

B. [Ar]3d64s2.

C. [Ar]3d64s1.

D. [Ar]3d34s2.

Cu 14: Pht biu no sau y khng ng?

A. Trong cc dung dch: HCl, H2SO4, H2S c cng nng 0,01M, dung dch H2S c pH ln nht.

B. Nh dung dch NH3 t t ti d vo dung dch CuSO4, thu c kt ta xanh.

C. Dung dch Na2CO3 lm phenolphtalein khng mu chuyn sang mu hng.

D. Nh dung dch NH3 t t ti d vo dung dch AlCl3, thu c kt ta trng.

Gii: Kt ta xanh sau tan to dung dch mu xanh lam thm khi NH3 dCu 15: Dy gm cc cht u tc dng vi H2 (xc tc Ni, t0) to ra sn phm c kh nng phn ng vi Na l:

A. C2H3CH2OH, CH3COCH3, C2H3COOH.B. C2H3CHO, CH3COOC2H3, C6H5COOH.

C. C2H3CH2OH, CH3CHO, CH3COOH.D. CH3OC2H5, CH3CHO, C2H3COOH.

Cu 19: Cho phn ng: 2C6H5-CHO + KOH ( C6H5-COOK + C6H5-CH2-OH

Phn ng ny chng t C6H5-CHO

A. va th hin tnh oxi ha, va th hin tnh kh.

B. ch th hin tnh oxi ha.

C. ch th hin tnh kh.

D. khng th hin tnh kh v tnh oxi ha.

Gii: 2C6H5-HO + KOH ( C6H5-OOK + C6H5-H2-OHCu 24: Cac dung dich phan ng c vi Cu(OH)2 nhit thng la

A. glixeron, axit axetic, glucoz

B. long trng trng, fructoz, axeton

C. anhit axetic, saccaroz, axit axeticD. fructoz, axit acrylic, ancol etylic

Gii: glixeron, glucoz th hin tnh cht ca ancol a chc cn axit axetic th hin tnh axitCu 25: Cho dung dich X cha KMnO4 va H2SO4 (loang) ln lt vao cac dung dich : FeCl2, FeSO4, CuSO4, MgSO4, H2S, HCl (c). S trng hp co xay ra phan ng oxi hoa - kh la

A. 3

B. 5

C. 4

D. 6

Gii: FeCl2, FeSO4, H2S, HCl cCu 26: Cac cht u khng bi thuy phn trong dung dich H2SO4 loang, nong la

A. t capron; nilon-6,6, polietylen

B. poli (vinyl axetat); polietilen, cao su buna

C. nilon-6,6; poli(etylen-terephtalat); polistiren

D. polietylen; cao su buna; polistiren

Cu 30: Co 4 dung dich ring bit: CuSO4, ZnCl2, FeCl3, AgNO3. Nhung vao mi dung dich mt thanh Ni. S trng hp xut hin n mon in hoa la

A. 1

B. 4

C. 3

D. 2Gii: CuSO4 v AgNO3

Cu 31: Thuy phn este Z trong mi trng axit thu c hai cht hu c X va Y (MX < MY). Bng mt phan ng co th chuyn hoa X thanh Y. Cht Z khng th la

A. metyl propionat

B. metyl axetat

C. etyl axetat

D. vinyl axetat

Cu 32: Tng s hp cht hu c no, n chc, mach h, co cung cng thc phn t C5H10O2, phan ng c vi dung dich NaOH nhng khng co phan ng trang bac la

A. 4

B. 5

C. 8

D. 9Gii: axit: CH3CH2CH2CH2COOH; CH3CH2CH(CH3)COOH; CH3CH(CH3)CH2COOH;

CH3C(CH3)2COOH

Este: CH3CH2CH2COOCH3; CH3CH(CH3)COOCH3; CH3CH2COOC2H5

CH3COOCH2CH2CH3; CH3COOCH(CH3)2Cu 34: Cho cac cn bng sau

(I) 2HI (k) H2 (k) + I2 (k) ;

(II) CaCO3 (r) CaO (r) + CO2 (k) ;

(III) FeO (r) + CO (k) Fe (r) + CO2 (k) ;

(IV) 2SO2 (k) + O2 (k) 2SO3 (k)

Khi giam ap sut cua h, s cn bng bi chuyn dich theo chiu nghich la

A. 4

B. 3

C. 2

D. 1Gii: (II) CaCO3 (r) CaO (r) + CO2 (k)

Cu 35: Cho s chuyn hoa :

Cac cht X, Y, Z ln lt la :

A. K3PO4, K2HPO4, KH2PO4

B. KH2PO4, K2HPO4, K3PO4

C. K3PO4, KH2PO4, K2HPO4

D. KH2PO4, K3PO4, K2HPO4Cu 37: Cho s chuyn hoa sau

Cac cht X, Y, Z ln lt la :

A. benzen; xiclohexan; amoniac

B. axetanehit; ancol etylic; buta-1,3-ien

C. vinylaxetilen; buta-1,3-ien; stirenD. vinylaxetilen; buta-1,3-ien; acrilonitrin

A. Khi un C2H5Br vi dung dich KOH chi thu c etilen

B. Dung dich phenol lam phenolphtalein khng mau chuyn thanh mau hng

C. Day cac cht : C2H5Cl, C2H5Br, C2H5I co nhit si tng dn t trai sang phai

D. un ancol etylic 1400C (xuc tac H2SO4 c) thu c imetyl ete

Gii: Do M tng dnCu 42: Cho cac cp cht vi ti l s mol tng ng nh sau :

(a) Fe3O4 va Cu (1:1)

(b) Sn va Zn (2:1)

(c) Zn va Cu (1:1)

(d) Fe2(SO4)3 va Cu (1:1)(e) FeCl2 va Cu (2:1)

(g) FeCl3 va Cu (1:1)

S cp cht tan hoan toan trong mt lng d dung dich HCl loang nong la

A. 4

B. 2

C. 3

D. 5

Gii: (a) Fe3O4 va Cu (1:1)

(b) Sn va Zn (2:1)

(d) Fe2(SO4)3 va Cu (1:1)Cu 43: Co bao nhiu cht hu c mach h dung iu ch 4-metylpentan-2-ol chi bng phan ng cng H2 (xuc tac Ni, t0)?

A. 3

B. 5

C. 2

D. 4

Gii:

CH2=CH(CH3)CH2CH(OH)CH3; (CH3)2CH=CHCH(OH)CH3; CH2=CH(CH3)CH2COCH3 ; (CH3)2CH=CHCOCH3 ; CH3)2CH2CH2COCH3Cu 48: Thuy phn hoan toan 1 mol pentapeptit X, thu c 2 mol glyxin (Gly), 1 mol alanin (Ala), 1 mol valin (Val) va 1 mol Phenylalanin (Phe). Thuy phn khng hoan toan X thu c ipeptit Val-Phe va tripeptit Gly-Ala-Val nhng khng thu c ipeptit Gly-Gly. Cht X co cng thc la

A. Gly-Phe-Gly-Ala-Val

B. Gly-Ala-Val-Val-Phe

C. Gly-Ala-Val-Phe-Gly

D. Val-Phe-Gly-Ala-Gly

Gii: pentapeptit X Gly + Ala + Val + Phe

1 mol 2 mol 1 mol 1 mol 1 mol

X thy phn Val-Phe + Gly-Ala-ValCu 52: Phat biu nao sau y khng ung ?

A. Trong mi trng kim, mui Cr(III) co tinh kh va bi cac cht oxi hoa manh chuyn thanh mui Cr(VI).

B. Do Pb2+/Pb ng trc 2H+/H2 trong day in hoa nn Pb d dang phan ng vi dung dich HCl loang ngui, giai phong khi H2.

C. CuO nung nong khi tac dung vi NH3 hoc CO, u thu c Cu

D. Ag khng phan ng vi dung dich H2SO4 loang nhng phan ng vi dung dich H2SO4 c nong.

Cu 53: Dung dch axit fomic 0,007M c pH = 3. Kt lun no sau y khng ng?

A. Khi pha long 10 ln dung dch trn th thu c dung dch c pH = 4.

B. in li ca axit fomic s gim khi thm dung dch HCl.

C. Khi pha lang dung dch trn th in li ca axit fomic tng.

D. in li ca axit fomic trong dung dch trn l 14,29%.

Gii. HCOOH l axit yu ph thuc vo Ka.Cu 54: Hp cht hu c mch h X c cng thc phn t C5H10O. Cht X khng phn ng vi Na, tha mn s chuyn ha sau:

Este c mi mui chn.

Tn ca X l

A. pentanal

B. 2 metylbutanal

C. 2,2 imetylpropanal.

D. 3 metylbutanal.Cu 55: nh gi s nhim kim loi nng trong nc thi ca mt nh my, ngi ta ly mt t nc, c c ri thm dung dch Na2S vo thy xut hin kt ta mu vng. Hin tng trn chng t nc thi b nhim bi ion

A. Fe2+.

B. Cu2+.

C. Pb2+.

D. Cd2+.

Gii: Cd2+ + S2- CdS vngCu 56: Cho s phn ng:

Trong X, Y, Z u l cc sn phm chnh. Cng thc ca X, Y, Z ln lt l:

A. C6H5CHOHCH3, C6H5COCH3, C6H5COCH2Br.

B. C6H5CH2CH2OH, C6H5CH2CHO, C6H5CH2COOH.

C. C6H5CH2CH2OH, C6H5CH2CHO, m-BrC6H4CH2COOH

D. C6H5CHOHCH3, C6H5COCH3, m-BrC6H4COCH3.

D B I HC KHI A 2009

Cu 4: Bit Cu c s hiu nguyn t l 29. Cu hnh electron ca ion Cu+ l

A. [Ar]3d104s1B. [Ar]3d94s1 C.[Ar]3d9 D.[Ar]3d10

p n D.

Cu 5: Cho phng trnh ho hc:

Al + HNO3 Al(NO3)3 + NO + N2O + H2O

(Bit t l th tch N2O: NO = 1 : 3). Sau khi cn bng phng trnh ho hc trn vi h s cc cht l nhng s nguyn, ti gin th h s ca HNO3 l

A. 66B. 60C. 64D. 62

p n A

Cu 8: C 4 dung dch trong sut , mi dung dch ch cha mt cation v mt loi anion. Cc loi ion trong c 4 dung dch gm: Ca2+, Mg2+, Pb2+, Na+, SO42, Cl-, CO32-, NO3-. l 4 dung dch g?

A. BaCl2, MgSO4, Na2CO3, Pb(NO3)2 B. BaCO3, MgSO4, NaCl, Pb(NO3)2

C. BaCl2, PbSO4, MgCl2, Na2CO3 D. Mg(NO3)2, BaCl2, Na2CO3, PbSO4p n A

Cu 10: Pht biu no sau y l ng:

A. Photpho trng c cu trc mng tinh th nguyn t, photpho c cu trc polimeB. Nitrophotka l hn hp ca NH4H2PO4 v KNO3

C. Thy tinh lng l dung dch m c ca Na2SiO3 v K2SiO3

D. Cacbon monooxit v silic ioxit l oxit axit

p n C

Cu 11: Cho cc kim loi: Cr, W , Fe , Cu , Cs . Sp xp theo chiu tng dn cng t tri sang phi l

A. Cu < Cs < Fe < W < Cr B. Cs < Cu < Fe < W < Cr

C. Cu < Cs < Fe < Cr < W D. Cs < Cu < Fe < Cr < Wp n B

Cu 17: Cho a mol bt km vo dung dch c ha tan b mol Fe(NO3)3. Tm iu kin lin h gia a v b sau khi kt thc phn ng khng c kim loi.

A. a 2b B. b > 3a C. b 2a D. b = 2a/3

p n C

Cu 25: Cho cc cng thc phn t sau : C3H7Cl , C3H8O v C3H9N. Hy cho bit s sp xp no sau y theo chiu tng dn s lng ng phn ng vi cc cng thc phn t ?

A. C3H7Cl < C3H8O < C3H9N B. C3H8O < C3H9N < C3H7Cl C. C3H8O < C3H7Cl < C3H9N D. C3H7Cl < C3H9N < C3H8O

Cu 27: Dy cc cht u lm mt mu dung dch thuc tm l

A. Etilen, axetilen, anehit fomic, toluen B. Axeton, etilen, anehit axetic, cumen C. Benzen, but-1-en, axit fomic, p-xilen D. Xiclobutan, but-1-in, m-xilen, axit axetic

p n A

Cu 30: Dy ch cha nhng amino axit c s nhm amino v s nhm cacboxyl bng nhau l

A. Gly, Ala, Glu, Tyr B. Gly, Val, Tyr, Ala

C. Gly, Val , Lys, Ala D. Gly, Ala, Glu, Lys

p n B

Cu 38: Dy gm cc cht c th iu ch trc tip (bng mt phn ng) to ra axit axetic l:

A. CH3CHO, C2H5OH, C2H5COOCH3.B. C2H4(OH)2, CH3OH, CH3CHO.

C. CH3CHO, C6H12O6 (glucoz), CH3OH.D. CH3OH, C2H5OH, CH3CHO.

p n D

Cu 39: Cho dy cc cht: CH4, C2H2, C2H4, C2H5OH, CH2=CH-COOH, C6H5NH2(anilin), C6H5OH (phenol), C6H6(benzen), CH3CHO. S cht trong dy phn ng c vi nc brom l

A. 5B. 6C. 7D. 8

p n B

Cu 41: Cho cc dung dch sau: Na2CO3, NaOH v CH3COONa c cng nng mol/l v c cc gi tr pH tng ng l pH1, pH2 v pH3. S sp xp no ng vi trnh t tng dn pH.

A. pH3 < pH1 < pH2 B. pH3< pH2 < pH1 C. pH1 < pH3 < pH2 D. pH1 < pH2 < pH3p n A

Cu 45: Ch dng mt thuc th phn bit cc kim loi sau: Mg, Zn, Fe, Ba?

A. Dung dch NaOH

B. Dung dch H2SO4 longC. Dung dch HCl

D. Nc

p n B

t0

t0

t0

T8500C,Pt

t0

t0

+ O2,t0

+ X, t0

+O2, t0

PAGE 1

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