ondh2

Ti liu n thi Tt nghip THPT v tuyn sinh i hc Cao ng mn Ha hc

Phan: 3E THI TH TUYEN SINH AI HOC MON HOA HOC THI N TP HA HC 12M : 215 ( thi ny gm c 6 trang)

THI TH TUYN SINH I HC V CAO NG Mn thi: HA HCThi gian lm bi: 90 pht (Khng k thi gian pht )

H v tn hc sinh:................................................................................................................................................. S bo danh:............................................................................................................................................................. LUYN THI S 1 PHN CHUNG CHO TT C CC TH SINH (40 Cu, t cu 1 n cu 40) Cu 1: Nung x mol Fe trong khng kh mt thi gian thu c 16,08 gam hn hp H gm 4 cht rn (Fe v 3 oxit ca n). Ha tan ht lng hn hp H trn bng dung dch HNO3 long, thu c 672 ml kh NO duy nht (ktc). Tr s ca x l: A. 0,15 B. 0,21 C. 0,24 D. 0,19 Cu 2: Cho rt chm tng git dung dch HCl vo dung dch Na2CO3. Ta nhn thy: A. C hin tng si bt kh CO2 ngay, cho n khi ht Na2CO3. B. Khng c xut hin bt kh v cho t t dung dch HCl nn ch to mui axit NaHCO3. C. Lc u cha thy xut hin bt kh, sau mt lc, mi thy bt kh thot ra. D. Tt c u sai v cn ph thuc vo yu t c un nng dung dch th nghim hay khng. Cu 3: Ha tan hon ton a gam FexOy bng dung dch H2SO4 m c nng va , c cha 0,075 mol H2SO4, thu c b gam mt mui v c 168 ml kh SO2 (ktc) duy nht thot ra. Tr s ca a, b l: A. 9g, 3,48g B. 6,6g, 1,08g C. 4,64g, 3,48g D. 12g, 1,08g Cu 4: Cho rt t t dung dch Na2CO3 vo dung dch HCl. Chn pht biu ng nht: A. Thy c bt kh thot ra. B. Khng c bt kh thot ra lc u, v to mui axit NaHCO3, sau mi c bt kh CO2 thot ra C. Do CO2 to ra phn ng vi Na2CO3 to mui axit, nn lc u cha to kh thot ra. D. B v C u ng Cu 5: Hn hp A gm hai kim loi kim hai chu k lin tip nhau. Ha tan 0,37 gam hn hp A trong nc d, thu c dung dch X. Cho 100 ml dung dch HCl 0,4M vo dung dch X, c dung dch Y. trung ha va lng axit cn d trong dung dch Y, cn thm tip 100 ml dung dch NaOH 1M c cha. Hai kim loi kim trn l: A. Li Na B. Na K C. K Rb D. Rb Cs Cu 6: Nh t t dung dch NaOH vo dung dch Zn(NO3)2, ta nhn thy: A. Thy xut hin kt ta ri tan ngay. B. Lc u dung dch c, khi cho dung dch Xt d vo th thy dung dch tr li trong sut. C. Lc u dung dch c l do c to Zn(OH)2 khng tan, sau vi kim d, n to phc cht [Zn(NH3)4]2+ tan, nn dung dch tr li trong. D. A v C u ng. Cu 7: Axit xitric (acid citric, c nhiu trong chanh) c hng s phn ly ion Ka1 = 7,1.10-4. 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: A. pH = 2,09; = 8,08% C. pH = 3,15; = 5,2% B. pH = 1,83; = 8,5% D. pH = 2,10; = 7,5% Cu 8: X l mt kim loi. Ha tan ht 3,24 gam X trong 100 ml dung dch NaOH 1,5M, thu c 4,032 lt H2 (ktc) v dung dch D. X l: A. Zn B. Al C. Cr D. K Cu 9: tch Ag ra khi hn hp Fe, Cu, Ag, th ta c th dng dung dch: A. HCl B. NH3 C. Fe(NO3)3 D. HNO3 c Copyright 2009 [email protected]


Cu 10: Kh hon ton mt oxit st nguyn cht bng CO d nhit cao. Kt thc phn ng, khi lng cht rn gim i 27,58%. Oxit st dng l: A. Fe2O3 B. Fe3O4 C. FeO D. A, B, C ng Cu 11: Tnh oxi ha ca cc ion c xp theo th t gim dn nh sau: A. Fe3+ > Cu2+ > Fe2+ > Al3+ > Mg2+ C. Al3+ > Mg2+ > Fe3+ > Fe2+ > Cu2+ 2+ 3+ 2+ 3+ 2+ B. Mg > Al > Fe > Fe > Cu D. Fe3+ > Fe 2+ > Cu 2+ > Al3+ > Mg2+ Cu 12: Ha tan hn hp hai kh: CO2 v NO2 vo dung dch KOH d, thu c hn hp gm cc mui: A. KHCO3, KNO3 C. KHCO3, KNO3, KNO2 B. K2CO3, KNO3, KNO2 D. K2CO3, KNO3 Cu 13: Trng hp khng xy ra phn ng l: A. (NH4)2CO3(dd) + Ca(OH)2(dd) C. NH3 + Cl2 B. Cu + NaNO3(dd) + HCl(dd) D. NaCl(dd) + I2(dd) Cu 14: Cho dung dch NaOH lng d vo 100 ml dung dch FeCl2 c nng C (mol/l), thu c mt kt ta. em nung kt ta ny trong chn khng cho n khi lng khng i, thu c mt cht rn, em ha tan ht lng cht rn ny bng dung dch HNO 3 long, c 112cm3 kh NO (duy nht) thot ra (ktc). Cc phn ng xy ra hon ton. Tr s ca C l: A. 0,10 B. 0,15 C. 0,20 D. 0,05 Cu 15: Cho mt lng mui FeS2 tc dng vi lng d dung dch H2SO4 long, sau khi kt thc phn ng, thy cn li mt cht rn. Cht rn ny l: A. FeS2 cha phn ng ht C. Fe2(SO4)3 B. FeS D. S Cu 16: Phn ng gia Toluen vi Kali pemanganat trong mi trng axit Sunfuric xy ra nh sau:CH3+

KMnO 4

+

H2SO4

COOH

+

MnSO4

+

K 2SO 4+

H2O

H s cn bng (ti gin) tng ng cc cht: cht oxi ha, cht kh v axit ln lt l: A. 5, 6, 9 B. 6, 5, 8 C. 3, 5, 9 D. 6, 5, 9 Cu 17: Vi cng thc phn t C9H12, s ng phn thm c th c l: A. 8 B. 9 C. 10 D. 7 Cu 18: Cho hn hp A gm cc hi v kh: 0,1 mol Benzen ; 0,2 mol Toluen ; 0,3 mol Stiren v 1,4 mol Hiro vo mt bnh kn, c cht xc tc Ni. un nng bnh kn mt thi gian, thu c hn hp B gm cc cht: Xiclohexan, Metyl xiclohexan, Etyl xiclohexan, Benzen, Toluen, Etyl benzen v Hiro. t chy hon ton lng hn hp B trn, ri cho hp th ht sn phm chy vo bnh ng dung dch nc vi c d, hp th ht sn phm chy. tng khi lng bnh ng nc vi l: A. 240,8 gam C. 193,6 gam B. 260,2 gam D. Khng d kin tnh Cu 19: A c cng thc dng CnH2n -8. A c th l: A. Aren ng ng Benzen B. Aren ng ng Phenyl axetilen C. Hirocacbon c hai lin kt i v mt lin kt ba mch h D. Hirocacbon mch h c hai lin kt ba v mt lin kt i Cu 20: A l mt cht hu c m khi t chy ch to kh Cacbonic v hi nc, trong th tch CO 2 gp i th tch hi nc (o cng iu kin v nhit v p sut). A c th l: A. Axit Oxalic C. C5H5O3 B. imetyl Oxalat D. CnHnOz vi n: s nguyn dng chn Cu 21: Hn hp A gm Etan, Etilen, Axetilen v Buta-1,3-ien. t chy ht m gam hn hp A. Cho sn phm chy hp th vo dung dch nc vi d, thu c 100 gam kt ta v khi lng dung dch nc vi sau phn ng gim 39,8 gam. Tr s ca m l: A. 58,75g B. 13,8g C. 60,2g D. 37,4g Cu 22: A l mt hp cht hu c cha 4 nguyn t C, H, O, N. Thnh phn phn trm khi lng nguyn t C, H, N ln lt l: 34,29% ; 6,67% ; 13,33%. CTPT ca A cng l cng thc n gin ca n. CTPT ca A l: A. C9H19N3O6 B. C3H7NO3 C. C6H5NO2 D. C8H5N2O4 Copyright 2009 [email protected]


Cu 23: pH ca dung dch CH3COOH 0,1M 25C c in ly 1,3% l: A. 3,9 B. 1,0 C. 2,9 D. 2,1 Cu 24: di lin kt gia C v O trong ba cht: CH 4O, CH2O v CH2O2 c sp theo th t tng dn nh sau: A. CH4O < CH2O < CH2O2 C. CH2O2 < CH4O < CH2O B. CH2O < CH2O2 < CH4O D. CH2O < CH4O < CH2O2 Cu 25: A l mt hirocacbon, hi A nng hn kh metan 5,75 ln (o trong cng iu kin v nhit v p sut). A ph hp s sau:

A

Cl2 as

B

dd NaOH to

C

CuO to

D

O2 Mn2

E

KMnO4/H2SO4

A. A l hirocacbon thm, B l dn xut Clo, C l phenol, D l anehit, E l axit hu c. B. A l Toluen, E l axit Benzoic. C. A khng th l mt hirocacbon thm D. Tt c u sai Cu 26: Mt chai ru mnh c dung tch 0,9 lt cha y ru 40. Etanol c t khi 0,79 g/ml. Khi lng Glucoz cn dng ln men iu ch c lng ru c trong chai ru trn l: (cho bit hiu sut phn ng ln men ru ny l 80%): A. 695,5 gam B. 1391 gam C. 445, 15 gam D. 1408,69 gam Cu 27: Hn hp E gm 3 este a chc ca axit oxalic v hai ru n chc, no, mch h, ng ng k tip. Thc hin phn ng x phng ha hon ton 4,8 gam hn hp E bng dung dch xt va th thy dng ht 19,48 ml dung dch NaOH 11% (c khi lng ring 1,12 g/ml). Cng thc ca hai ru to nn hn hp E l: A. CH3OH, C2H5OH C. C2H5OH, C3H7OH B. C4H9OH, C5H11OH D. C5H11OH, C6H13OH Cu 28: Cht hu c A c cng thc phn t l C4H10O. A ph hp vi s phn ng di y:

A

-H2O

H2SO4 (); t

o

A1

Br2

A2

+ 2O H OH

A3

+CuO o

t

Xeton a ch c hai nho ch m c

Trong s trn, A l: A. Ru n-butylic C. Ru isobutylic B. Ru sec-butylic D. Ru tert-butylic Cu 29: A l mt ru n chc khng no, c cha mt lin kt i trong phn t, mch h. Khi t chy mt th tch hi A th thu c 4 th tch kh CO 2 (cc th tch o trong cng iu kin v nhit v p sut). A c th ng vi bao nhiu cht (bao nhiu cng thc cu to) ph hp vi gi thit trn: (Cho bit nhm OH gn vo C mang ni i khng bn) A. 3 cht B. 4 cht C. 5 cht D. 6 cht Cu 30: Hai cht A, B u c to bi ba nguyn t C, H, O. t chy A, cng nh B u to CO 2 v H2O c t l khi lng nh nhau, mcacbonic : mnc = 11 : 6. T A c th iu ch B qua hai giai on:

A

H2SO4 () 180 0 C

A'

dd KMnO4

B

A, B ln lt l: A. C2H5OH ; HO-CH2-CH2-OH C. C3H7OH ; C2H5COOH B. CH3CH2CH2OH ; CH3CHOHCH2OH D. C4H8(OH)2 ; C4H6(OH)4 Cu 31: Cho mt inh st lung d vo 20 ml dung dch mui nitrat kim loi X c nng 0,1M. Sau khi phn ng xy ra hon ton, tt c kim loi X to ra bm ht vo inh st cn d, thu c dung dch D. Khi lng dung dch D gim 0,16 gam so vi dung dch nitrat X lc u. Kim loi X l: A. ng (Cu) C. Niken (Ni) B. Thy ngn (Hg) D. Mt kim loi khc Cu 32: Nguyn t no c bn knh ion nh hn bn knh nguyn t tng ng? Copyright 2009 [email protected]


A. Clo B. Lu hunh C. Neon D. Natri Cu 33: Phn ng nhit nhm l phn ng: A. Nhm b oxi ha to nhm oxit khi un nng trong khng kh. B. Ion nhm b kh to nhm kim loi catot bnh in phn khi in phn nhm oxit nng chy. C. Nhm y c kim loi yu hn n ra khi oxit kim loi nhit cao. D. Nhm y c cc kim loi yu hn n ra khi dung dch mui. Cu 34: Xt phn ng: Br2 + 2KI 2KBr + I2 A. KI b oxi ha, s oxi ha ca n tng C. KI b kh, s oxi ha ca n tng B. KI b oxi ha, s oxi ha ca n gim D. KI b kh, s oxi ha ca n gim Cu 35: Cho 624 gam dung dch BaCl2 10% vo 200 gam dung dch H2SO4 (c d). Lc b kt ta, ly dung dch cho tc dng vi lng d dung dch Pb(CH3COO)2, thu c 144 gam kt ta. Nng % ca dung dch H2SO4 lc u l: A. 24,5% B. 14,7% C. 9,8% D. 37,987% Cu 36: Th t nhit si tng dn ca cc hirohalogenua nh sau: A. HF < HCl < HBr < HI C. HCl < HF < HBr < HI B. HCl < HBr < HI < HF D. HI < HBr < HCl < HF Cu 37: Ngi ta trn m1 gam dung dch cha cht tan A, c nng phn trm l C1, vi m2 gam dung dch cha cng cht tan, c nng phn trm l C 2, thu c dung dch c nng phn trm C. Biu thc lin h gia C, C1, C2, m1, m2 l: A. B. C. D. C C2 m1 C C1 m1C1 m2C2 m1C1 m2C2 m1 = C= C= = m2 C1 C m2 C2 C m2 m1 m1 m2 Cu 38: Vitamin A (Retinol) l mt vitamin khng tan trong nc m ha tan trong du (cht bo). Nhit nng chy ca vitamin A khong 63C. Cng thc ca vitamin A lCH3 OH H3C CH3 CH3 CH3

Phn trm khi lng ca hiro c trong vitamin A l: A. 9,86% B. 10,49% C. 11,72% D. 5,88% Cu 39: Hn hp kh A gm 0,2 mol Axetilen; 0,3 mol Etilen; 0,3 mol Metan v 0,7 mol Hiro. Nung nng hn hp A, c Ni lm xc tc, thu c 28 lt hn hp kh B (ktc). Hiu sut H2 cng vo cc Hirocacbon khng no l: A. 35,71 % B. 40,25 % C. 80,56 % D. 100,0 % Cu 40: Xt cc cht: (I): CH3COOH ; (II): CH3CH2OH ; (III): C6H5OH (phenol) ; (IV): HO-C2H4-OH ; (V): H2O. S linh ng ca nguyn t H trong nhm OH cc cht tng dn theo th t sau: A. (II) < (V) < (IV) < (III) < (I) C. (V) < (II) < (IV) < (III) < (I) B. (II) < (IV) < (V) < (III) < (I) D. (III) < (V) < (IV) < (II) < (I) PHN RING CHO CC TH SINH (Th sinh ch c chn mt trong hai phn) A. Chng trnh chun: (t cu 41 n cu 50) Cu 41: Cc cht no c th cng tn ti trong mt dung dch? A. (NH4)2CO3; K2SO4; Cu(CH3COO)2 C. HCOONa; Mg(NO3)2; HCl B. Zn(NO3)2; Pb(CH3COO)2; NaCl D. Al2(SO4)3; MgCl2; Cu(NO3)2 Cu 42: em nung 116 gam qung Xierit (cha FeCO3 v tp cht tr) trong khng kh (coi nh ch gm oxi v nit) cho n khi lng khng i. Cho hn hp kh sau phn ng hp th vo bnh ng dung dch nc vi c ha tan 0,4 mol Ca(OH)2, trong bnh c to 20 gam kt ta. Nu un nng phn dung dch, sau khi lc kt ta, th thy c xut hin thm kt ta na. Hm lng (Phn trm khi lng) FeCO3 c trong qung Xierit l: A. 50% B. 90% C. 80% D. 60%

Copyright 2009 [email protected]

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Cu 43: Cho 3,2 gam bt lu hunh (S) vo mt bnh kn c th tch khng i, c mt t cht xc tc rn V2O5 (cc cht rn chim th tch khng ng k). S mol O2 cho vo bnh l 0,18 mol. Nhit ca bnh lc u l 25C, p sut trong bnh l p1. To mi la t chy ht lu hunh. Sau phn ng gi nhit bnh 442,5C, p sut trong bnh by gi p2 gp i p sut p1. Hiu sut chuyn ha SO2 to SO3 l: A. 40% B. 50% C. 60% D. 100% Cu 44: Trn 100 ml dung dch KOH 0,3M vi 100 ml dung dch HNO 3 c pH = 1, thu c 200 ml dung dch A. Tr s pH ca dung dch A l: A. 1,0 B. 0,7 C. 13,3 D. 13,0 Cu 45: em nung m gam hn hp A cha hai mui cacbonat ca hai kim loi u thuc phn nhm chnh nhm II trong bng h thng tun hon, thu c x gam hn hp B gm cc cht rn v c 5,152 lt CO2 thot ra. Th tch cc kh u o ktc. em ha tan ht x gam hn hp B bng dung dch HCl th c 1,568 lt kh CO2 thot ra na v thu c dung dch D. em c cn dung dch D th thu c 30,1 gam hn hp hai mui khan. Tr s ca m l: A. 26,80 gam B. 27,57 gam C. 30,36 gam D. 27,02 gam Cu 46: Mt hn hp X gm mt hirocacbon A (hin din dng kh iu kin thng) v kh oxi c d. Bt tia la in t chy hon ton hn hp X. Sau phn ng chy, thu c hn hp kh v hi B, trong c 40% th tch CO2, 30% th tch hi nc. A l: A. Buta-1,3-ien C. Axetilen B. Etilen D. Metylaxetilen Cu 47: Dung dch CH3COOH 0,1M c in ly 1,3% 25C. Tng s ion CH3COO-, H+ do CH3COOH phn ly ra trong 10 ml dung dch CH3COOH 0,1M 25C l: A. 2,6.10-5 B. 1,56.1019 C. 1,3.10-5 D. 1,566.1021 Cu 48: 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. S n v mt xch trong phn t polyme ny l: A. 808 B. 800 C. 768 D. 960 Cu 49: Cng thc tng qut ca cc cht ng ng Naptalen l: A. CnH2n 16 B. CnH2n 14 C. CnH2n 12 D. CnH2n 10 Cu 50: Axit salixilic tc dng vi anhirit axetic to aspirin v axit axetic theo phn ng:COOH OH + CH3 C O C CH3 O OAxit Salixilic Anhirit Axetic H2SO4

COOH O C OCH3 O + CH3COOHAspirin Axit Axetic

Khi cho 1 gam axit salixilic tc dng vi lng d anhirit axetic th thu c 0,85 gam aspirin. Hiu sut ca phn ng ny l: A. 65% B. 77% C. 85% D. 91% B. Chng trnh nng cao: (t cu 51 n cu 60) Cu 51: Cho m gam hn hp gm ba kim loi l Mg, Al v Fe vo mt bnh kn c th tch khng i 10 lt cha kh oxi, 136,5C p sut trong bnh l 1,428 atm. Nung nng bnh mt thi gian, sau a nhit bnh v bng nhit lc u (136,5C), p sut trong bnh gim 10% so vi lc u. Trong bnh c 3,82 gam cc cht rn. Coi th tch cc cht rn khng ng k. Tr s ca m l: A. 2,46 gam B. 2,12 gam C. 3,24 gam D. 1,18 gam Cu 52: Xt: FexOy + (6x-2y)HNO3(m c) t xFe(NO3)3 + (3x-2y)NO2 + (3x-y)H2O A. y phi l mt phn ng oxi ha kh, FexOy l cht kh, n b oxi ha to Fe(NO3)3. B. Trong phn ng ny, HNO3 phi l mt cht oxi ha, n b kh to kh NO2. C. y c th l mt phn ng trao i, c th HNO3 khng ng vai tr cht oxi ha. D. A, B u ng. Cu 53: Mt dung dch MgCl2 cha 5,1% khi lng ion Mg2+. Dung dch ny c khi lng ring l: D = 1,17 g/ml. Khi lng ion Cl- trong 300 ml dung dch ny l: A. 13,0640 gam B. 22,2585 gam C. 26,1635 gam D. 52,9571 gam0


44


Cu 54: 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 Cu 55: Cho 42 gam hn hp mui MgCO3, CuCO3, ZnCO3 tc dng vi dung dch H2SO4 long, thu c 0,25 mol CO2, dung dch A v cht rn B. C cn dung dch A, thu c 38,1 gam mui khan. em nung lng cht rn B trn cho n khi lng khng i th thu c 0,12 mol CO 2 v cn li cc cht rn B. Khi lung ca B v B l: A. 10,36 gam ; 5,08 gam C. 15, 63 gam ; 10,35 gam B. 12,90 gam ; 7,62 gam D. 16,50 gam ; 11,22 gam Cu 56: Hn hp kh X gm Hiro v mt Hirocacbon. Nung nng 24,64 lt hn hp X (ktc), c Ni lm xc tc, phn ng xy ra hon ton, bit rng c Hirocacbon d. Sau phn ng thu c 20,4 gam hn hp kh Y. T khi hn hp Y so vi Hiro bng 17. Khi lng H2 c trong hn hp X l: A. 3 gam B. 2 gam C. 1 gam D. 0,5 gam Cu 57: 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 C. C2H5COOH; C3H7COOH B. Axit axetic; Axit Propionic D. C3H7COOH; C4H9COOH Cu 58: A l mt hn hp cc cht hu c gm mt parafin, mt ru n chc v mt axit hu c n chc. t chy hon m gam hn hp A bng mt lng khng kh va (khng kh gm 20% Oxi v 80% Nit theo th tch). Cho cc cht sau phn ng chy hp th vo bnh ng dung dch Ba(OH) 2 lng d. C 125,44 lt mt kh tr thot ra (ktc) v khi lng bnh ng dung dch Ba(OH) 2 tng thm 73,6 gam. Tr s ca m l: A. 28,8 gam B. 25,2 gam C. 37,76 gam D. 41,72 gam Cu 59: to c 1 mol glucoz t s quang hp ca cy xanh th phi cn cung cp nng lng l 2 as C6H12O6 + 6O2 813kJ. 6CO2 + 6H2O + 2 813kJ Gi s trong mt pht, 1cm2 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 1m 2. Cn thi gian bao lu cy xanh ny to c 36 gam glucoz khi c nng: A. Khong 4 gi 40pht C. Khong 200 pht B. Khong 8 gi 20 pht D. Mt kt qu khc Cu 60: 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% - - - - -o Ht o- - - - Th sinh KHNG c s dng bng h thng tun hon cc nguyn t ho hc v bng tnh tan Gim th coi thi khng gii thch g thm


45

THI N TP HA HC 12 LUYN THI S 2 ( thi ny gm c 5 trang)


M 423 PHN CHUNG CHO TT C CC TH SINH (40 cu, t cu 1 n cu 40) Cu 1: Trong cc nhm sau, nhm gm cc Sunfua kim loi c th tan c trong nc l: A. K2S, Na2S, CoS, CaS. C. SnS2, MnS, K2S, BaS. B. BaS, Na2S, Cr2S3, Al2S3. D. CaS, FeS, Na2S, K2S. Cu 2: Gc ha tr HSH (trong H2S), OSO (trong SO2) v HOH (trong H2O) c sp xp theo chiu tng dn l: A. HSH < OSO < HOH . C. HSH < HOH < OSO . B. OSO < HSH < HOH . D. HOH < HSH < OSO . Cu 3: Ha tan hon ton 5,6g Fe vo 100 ml dung dch H 2SO4 xM (dung dch A) thy sau phn ng trong dung dch ch cha mt mui duy nht. pH ca dung dch A trc khi cho Fe vo l: A. 0,96. B. 1,35. C. 0,52. D. 1,68. Cu 4: un nng V lt hi anehit X vi 3V lt kh H2 (xc tc Ni) n khi phn ng xy ra hon ton ch thu c mt hn hp kh Y c th tch 2V lt (cc th tch kh o cng iu kin nhit , p sut). Ngng t Y thu c cht Z ; cho Z tc dng vi Na sinh ra H 2 c s mol bng s mol Z phn ng. Cht X l anehit: A. khng no, hai chc. C. khng no, n chc. B. no, hai chc. D. no, n chc. Cu 5: Cho 3,6 gam anehit n chc X phn ng hon ton vi mt lng d Ag2O (hoc AgNO3) trong dung dch NH3 un nng, thu c m gam Ag. Ho tan hon ton m gam Ag bng dung dch HNO3 c, sinh ra 2,24 lt NO2 (sn phm kh duy nht, ktc). Cng thc ca X l A. C2H5CHO. B. HCHO. C. C4H9CHO. D. C3H7CHO. Cu 6: Ho tan hon ton hn hp gm 0,12 mol FeS2 v a mol Cu2S vo axit HNO3 (va ), thu c dung dch X (ch cha hai mui sunfat) v kh duy nht NO. Gi tr ca a l A. 0,04. B. 0,075. C. 0,12. D. 0,06. Cu 7: Pht biu ng l: A. Tnh axit ca phenol yu hn ca ru (ancol). B. Cao su thin nhin l sn phm trng hp ca isopren. C. Cc cht etilen, toluen v stiren u tham gia phn ng trng hp. D. Tnh baz ca anilin mnh hn ca amoniac. Cu 8: Ha tan han ton 12 gam hn hp Fe v Cu (s mol hai kim loi bng nhau) bng dung dch HNO3 d thu c V lt (ktc) hn hp X (gm hai kh NO v NO2) v dung dch Y ch cha hai mui v axit d. T khi ca X i vi H2 bng 19. Gi tr ca V l A. 3,36 lit. B. 2,24 lit. C. 4,48 lit. D. 5,60 lit. Cu 9: Ha tan 2,29 gam hn hp hai kim loi Ba v Na vo nc c dung dch A v 6,72 lt kh (ktc). Thm t t dung dch FeCl3 vo dung dch A cho n d. Lc kt ta, ra sch, sy kh v nung n khi lng khng i c m gam cht rn. Gi tr ca m l A. 1,6 gam. B. 3,2 gam. C. 4,8 gam. D. 6,4 gam. Cu 10: chng minh trong phn t ca ng glucoz c nhiu nhm hiroxyl, ngi ta cho dung dch glucoz phn ng vi: A. AgNO3 trong dung dch NH3, un nng. C. kim loi Na. B. Cu(OH)2 trong NaOH, un nng. D. Cu(OH)2 nhit thng. Cu 11: pH ca dung dch HCl 10-7M l: A. 6,79.0 B. 7,00. C. 6,86. D. 7,05. Cu 12: Khi cho photpho trng phn ng vi dung dch Ba(OH)2 va , ngi ta thu c dung dch mui c cha Ba2+ v gc X-. Vy anion X- l dng eproton ha ca axit: Copyright 2009 [email protected]

A. H2PO B. H2PO C. HPO3 D. H3PO . 2. 3. 4. Cu 13: t chy 0,1 mol hn hp 2 ru no thu c 4,48 lt CO 2 (ktc). Dn ton b sn phm chy qua bnh ng KOH rn d th khi lng bnh tng thm: A. 8,8 gam. B. 5,4 gam. C. 14,2 gam. D. 19,6 gam. Cu 14: Cho cc d liu sau: (1) h nhit nng chy ca Al2O3, tit kim nng lng. (2) to cht lng dn in tt hn Al2O3 nng chy. (3) ngn cn qu trnh oxi ho nhm trong khng kh. Khi iu ch nhm bng cch in phn Al2O3 nng chy, ngi ta thm criolit (Na3AlF6) l : A. (1), (3). B. (2), (3). C. (1), (2). D. (1), (2), (3). Cu 15: Cho bit phn t BF3 c cu trc hnh hc dng tam gic phng u, trng thi lai ha ca nguyn t B trung tm l: A. sp2. B. sp. C. sp3. D. sp3d. Cu 16: Chn cu tr li sai trong cc cu sau. Trong mt chu k, nhn chung khi i t tri sang phi th: A. Tnh kim loi gim dn, tnh phi kim tng dn. B. Nng lng ion ha th nht tng dn. C. Tnh axit ca cc hiroxit tng ng gim dn. D. Bn knh nguyn t gim dn.. Cu 17: Xt chui phn ng sau: Benzen A B C phenol . Trong chui bn A, B, C ln lt l: A. xiclohexan, xiclohexyl bromua, xilohexanol. B. toluen, brombenzen, cumen. C. nitrobenzen, anilin, mui iazoni C6H5N2Cl. D. anisol, brombenzen, natri phenolat. Cu 18: Trong cc cht sau y, cht c kh nng to lin kt hiro ni phn t l: A. p-nitrophenol. C. m-metylphenol. B. o-nitrophenol. D. p-metylphenol. Cu 19: t chy mt axit no, 2 ln axit (Y) thu c 0,6 mol CO2 v 0,5 mol H2O. Bit Y c mch cacbon l mch thng. CTCT ca Y l: A. HOOCCOOH. C. HOOCCH2COOH. B. HOOC(CH2)2COOH. D. HOOC(CH2)4COOH. Cu 20: Chia hn hp gm 2 anehit no, n chc thnh 2 phn bng nhau: - phn 1: t chy hon ton thu c 0,54 gam H2O. - phn 2: hir ha (xc tc Ni, to) thu c hn hp kh X. Nu t chy hn hp X th th tch CO2 (ktc) thu c l : A. 0,112 lt. B. 0,672 lt. C. 1,68 lt. D. 2,24 lt. Cu 21: Cho phn ng este ha: RCOOH + ROH R-COO-R + H2O. phn ng chuyn di u tin theo chiu thun, theo nguyn l chuyn dch cn bng Lesaterlie th cn phi: A. Tng nng ca axit hoc ru. C. Tch este ra khi hn hp phn ng B. Dng H2SO4 c xc tc v ht D. C A, B, C u dng. nc. Cu 22: Trong cc ng phn mch h c cng cng thc phn t C4H6O2, s cc cht c th tham gia phn ng vi dung dch NaOH l: A. 5. B. 6. C. 7. D. 8. Cu 23: Cho cc polime sau: PE, PVC, Cao su Buna, Amilopectin. Khng nh ng l: A. PE, PVC, Caosu Buna: mch thng ; Amilopectin: mch phn nhnh. B. Cc polime trn u c cu trc dng mch thng. C. Cc polime trn u c cu trc dng mch nhnh. D. PE, Cao su Buna: mch thng, Amilopectin, PVC: mch phn nhnh. Cu 24: Pin Zn Ag c biu din theo s sau: () Zn | Zn(NO3)2 || AgNO3 | Ag (+). Cho bit cc gi o o tr th kh chun: E Zn 2+ / Zn = 0,76V; EAg+ / Ag = +0,8V . Sut in ng chun ca pin Zn Ag l: A. 0,04V. B. 1,56V. C. 2,36V. D. A, B, C sai. Copyright 2009 [email protected]

Cu 25: Khi cho PVC tc dng vi Zn trong ru th tch ra c ZnCl 2 v thu c polime c cha 20,82% clo. Polime khng cha ni i v khng c tnh do nh PVC. % mt xch vinyl clorua b tch clo bi Zn l: A. 62,58%. B. 66,67%. C. 33,33%. D. 80,00%. 2+ 2+ + 3+ 2+ Cu 26: Trong cc ion: Ni , Zn , Ag , Au , Sn . Ion c tnh oxi ha yu nht, mnh nht ln lt l: A. Zn2+ ; Au3+. B. Au3+ ; Ni2+. C. Ni2+ ; Ag+. D. Zn2+ ; Sn2+. Cu 27: Cho m(g) hn hp X gm 2 ru no, n chc, k tip nhau trong dy ng ng tc dng vi CuO d nung nng, thu c 1 hn hp rn Z v 1 hn hp hi Y (c t khi hi so vi H 2 l 13,75). Cho ton b Y phn ng vi 1 lng d AgNO3 trong NH3, un nng sinh ra 64,8g Ag. Gi tr ca m l: A. 7,8g. B. 8,8g. C. 7,4g. D. 9,2g. Cu 28: Ha tan hon ton 2,18 gam hn hp A gm Fe v Ag vo dung dch H2SO4 long d thu c V1 lt kh H2 (ktc). Mt khc, nu ha tan 2,18 gam hn hp A trn vo dung dch HNO 3 c nng d th thy to ra V2 lt kh 1 sn phm kh duy nht (ktc). Bit V2 = 4,5V1. % khi lng Fe trong A l: A. 61,47 %. B. 74,31 %. C. 38,53 %. D. 25,69 %. Cu 29: Este X c cng thc C4H8O2 c nhng chuyn ho sau : xt H + ,t o (1) X + H 2 O Y1 + Y2 (2) Y1 + O2 Y2 + H2 O tha mn iu kin trn th X c tn l : A. Isopropyl fomiat. C. Metyl propyonat. B. Etyl axetat. D. n-propyl fomiat. Cu 30: Nung nng hn hp 2 mui nitrat ca ch v bc n hon ton c 12,32 lt (ktc) hn hp gm 2 kh. Lm lnh hn hp kh bng nc v mui n thy cn 3,36 lt (ktc) v cht lng c cho tc dng vi 1 lit dung dch NaOH 4M to thnh dung dch A. Khi lng ca Pb(NO 3)2 ; AgNO3 (gam) trong hn hp ban u ln lt l: A. 39,72 ; 20,40 B. 49,65 ; 21,25 C. 33,10 ; 34,00 D. A, B, C sai Cu 31: Bit AuCl3 c tnh oxi ha mnh v d b kh hn so vi mui bc (I). Sn phm ca phn ng: AuCl3 + H2O2 l: A. Au ; O2 ; HCl. C. AuCl ; O2 ; HCl. B. AuCl ; O2 ; H2O. D. A, B, C u sai. Cu 32: Cho 30,6g hn hp gm Mg, Zn, Ag tc dng vi 900ml dung dch HCl 1M va . Cho t t NaOH vo A lng kt ta thu c l ln nht. Lc ly kt ta v nung nhit cao cho n khi lng khng i, thu c a gam cht rn. Gi tr ca a l: A. 38,7g. B. 37,8g. C. 40,2g. D. 39,8g. Cu 33: Hp cht A l mt aminoaxit mch khng nhnh. Cho 0,01 mol A tc dng va vi 80 ml dung dch HCl 0,125M, sau em c cn thu c 1,835 gam mui. Mt khc, trung ha 2,94 gam A bng mt lng va dung dch NaOH, sau khi c cn sn phm th thu c 3,82 gam mui. CTCT ca A l: A. HOOCCH2CH(NH2)COOH C. H2NCH2CH2CH(NH2)COOH B. CH3OCOCH2CH(NH2)COOH D. HOOCCH2CH2CH(NH2)COOH Cu 34: xc nh cc ion kim loi hoc ion kim loi c trong nc ngi ta thng dng: A. Phng php chun kt ta. C. Phng php thy phn tch. B. Phng php sc k. D. Phng php quang ph lin tc. Cu 35: xc nh hm lng H2S c trong khng kh ngi ta lm th nghim sau: Ly 30 lt khng kh nhim H2S (d = 1,2g/l) cho i qua thit b phn tch gm bnh ng CdSO 4, thu c kt ta A. Sau axit ha ton b bnh phn tch c kt ta, thu kh thot ra cho vo ng ng 10ml dung dch I2 0,0107M oxi ha hon ton kh thot ra to B kt ta. Lng I2 d phn ng va 12,85 ml dung dch Na2S2O3 0,01344M. Hm lng H2S trong mu theo ppm l: A. 16,92 ppm. B. 21,77 ppm. C. 19,50 ppm. D. 18,51 ppm. Cu 36: Oxi ha 1,2g CH3OH bng CuO nung nng, sau mt thi gian thu c hn hp sn phm X. Cho ton b X tc dng vi lng d dd AgNO3/NH3 thu c 12,96g Ag. Hiu sut ca phn ng oxi ha CH3OH l: A. 76,6%. B. 65,5%. C. 80,0 %. D. 70,4%. Na[Au(CN)2] + NaOH l: Cu 37: Tng h s cn bng ca phn ng: Au + NaCN + H2O + O2 A. 25. B. 41. C. 23. D. 16. Copyright 2009 [email protected]

Cu 38: Cho hn hp A gm kim loi R ho tr I v kim loi X ho tr II. Ho tan 6 gam A vo dung dch c cha HNO3 v H2SO4 thu c 2,688 lt hn hp kh NO2 v kh Y (kc) nng 5,88 gam. C cn dung dch sau phn ng, khi lng mui khan thu c l: A. 12,68 g. B. 21,86 g. C. 14,12 g. D. 12,14 g. Cu 39: kh mt lng nh kh clo khng may thot ra trong phng th nghim, ngi ta dng: A. Dung dch AgNO3 long. C. Dung dch NaCl. B. Dung dch NH3 long. D. Dung dch Ca(OH)2. Cu 40: Poli(vinyl clorua) PVC khng nhng c dng lm cht do m cn c dng sn xut t clorin. Cho kh Cl2 phn ng vi PVC c polime X (t X ngi ta c th iu ch t clorin) c cha 67,18% clo trong phn t. Gi s h s trng hp n khng i, gi x l s mt xch (CH 2CHCl) tham gia phn ng vi mt phn t Cl2. Gi tr ca x l: A. 2. B. 3. C. 4. D. 5. PHN RING Th sinh ch c chn 1 trong 2 phn sau Phn 1: Theo chng trnh chun (10 cu, t cu 41 n cu 50) Cu 41: Cu hnh electron sau: 1s22s22p6 ng vi nguyn t hoc ion: A. Ar. B. Na+. C. S2-. D. A, B, C ng Cu 42: Xt cc cp kim loi sau: (1) AlFe ; (2) CuFe ; (3) MgFe ; (4) PbFe. Trong cc cp , cp kim loi khi ngm vo dung dch cht in li c Fe b n mn l: A. C 4 cp. C. (2) ; (4). B. (1) ; (3). D. A, B, C u sai. Cu 43: x phng ha hon ton 2,52 gam mt cht bo cn dng 90 ml dung dch KOH 0,1 M. Sau phn ng thu c 0,265 gam glixeryl. Ch s axit ca cht bo trn l: A. 8. B. 18. C. 9. D. 12. Cu 44: Chia 3,1 gam mt hn hp A gm 3 cht: axit cacboxylic n chc, ru n chc v este ca chng thnh hai phn bng nhau. t chy hon ton phn th nht, thu c 1,736 lit CO2 (ktc) v 1,26 gam H2O. Phn th hai phn ng hon ton vi 125 ml dung dch NaOH 0,1M (un nng), thu c p gam cht rn B v 0,74 gam cht C. Oxi ha hon ton C bng CuO d, nung nng. Sn phm to thnh cho tc dng vi dd AgNO3/NH3 thu c mt axit cacboxylic v 2,16 g Ag. Axit trong A v gi tr p l: A. axit acrylic ; 1,175 gam. C. axit amylic ; 1,175 gam. B. axit axetic ; 1,625 gam. D. axit propanoic ; 1,625 gam. Cu 45: Hn hp A gm Etan, Etilen, Axetilen v Butaien-1,3. t chy ht m gam hn hp A. Cho sn phm chy hp th vo dung dch nc vi d, thu c 100 gam kt ta v khi lng dung dch nc vi sau phn ng gim 39,8 gam. Tr s ca m l: A. 58,75 gam. B. 37,4 gam. C. 60,2 gam. D. 13,8 gam. Cu 46: Hirazin (H2NNH2) c hng s phn ly baz Kb = 10-6. Tr s pH ca dung dch hirazin nng 0,15M l: A. 8,41. B. 10,59. C. 9,82. D. 11,00. Cu 47: Bit rng, khi trung ha 100 ml dung dch A gm HCl, H2SO4 bng NaOH, c cn dung dch s thu c 13,2 gam mui khan. Cn trung ha 10 ml dung dch A cn dng 40 ml dung dch NaOH 0,5M. Nng mol/l ca H2SO4 v HCl trong dung dch A ln lt l: A. 0,8M ; 0,6M. B. 0,6M ; 0,8M. C. 0,8M ; 1,2M. D. 1,2M ; 0,8M. Cu 48: bo v ni hi supde bng thp khi b n mn, ngi ta thng: A. Ph lp sn dy vo mt trong ni hi. C. Lt vo mt trong nhng l km. B. Trng mt trong bng mt lp thic dy. D. A, B, C u ng. Cu 49: Ha tan 3,04 gam hn hp bt kim loi Fe v Cu trong dung dch HNO 3 long, thu c 0,896 lt kh NO duy nht (ktc). % khi lng Cu v Fe trong hn hp ln lt l: A. 63,16% ; 36,84%. C. 42,11% ; 57,89%. B. 50,96% ; 49,04%. D. 84,21% ; 15,79%. Cu 50: Vitamin B1 (Thiamine) c cng thc cu to (dng mui clorua ca axit HCl) nh sau: Copyright 2009 [email protected]

NH2 N H3C N

Cl N

CH3 OH S

Mt vin vitamin B1 c khi lng 2 gam, cha 45,91% cht ph gia. S mol vitamin B1 c trong vin thuc ny l: A. 0,0036 mol C. 0,0034 mol B. 0,0035 mol D. 0,0037 mol Phn 2: Theo chng trnh nng cao (10 cu, t cu 51 n cu 60) Cu 51: Hn hp E gm 3 este a chc ca axit oxalic v hai ru n chc, no, mch h, ng ng k tip. Thc hin phn ng x phng ha hon ton 4,8 gam hn hp E bng dung dch xt va th thy dng ht 19,48 ml dung dch NaOH 11% (c khi lng ring 1,12 g/ml). Cng thc ca hai ru to nn hn hp E l: A. CH3OH, C2H5OH. C. C5H11OH, C6H13OH. B. C4H9OH, C5H11OH. D. C2H5OH, C3H7OH. Cu 52: Cu hnh electron: [Ar]3d54s0 l cu hnh ca ion: A. Mn2+. B. Fe3+. C. Cr2+. D. A, B ng. Cu 53: Cho phn chua vo nc, nc trong hn l do: A. Phn ng ha hc xy ra to ra dung dch trong sut. B. Al(OH)3 bc ly cn bn l lng, ri ni ln trn d vt ra. C. Al3+ thy phn to Al(OH)3 ko cn bn lng xung y. D. B, C u ng. Cu 54: Tin hnh m hun chng bc c tit din 8cm2 bng dung dch AgNO3, anot bng Ag, mt dng 1A/dm2, thi gian in phn 16 pht 5 giy, hiu sut 80%. Bit khi lng ring ca Ag l 10,5 g/cm3, B dy lp m (theo micromet) l: A. 8,23. B. 6,58. C. 8,54. D. 6,62. Cu 55: Cho 34 gam mt mui nitrat ca kim loi M c ha tr n khng i vo bnh kn dung tch 5,6 lt cha khng kh ti ktc. Nung bnh n nhit khng i c 21,6 gam cht rn B v hn hp kh C. Sau khi nung, a nhit v 0oC. Gi tr ca p sut P sau khi a v 0oC l: A. 1,1 B. 2,34 C. 2,2 D. 1,62 atm. atm. atm. atm. Cu 56: So vi kim loi kim th cc kim loi nhm IB c nhit nng chy, nhit si v nhit thng hoa cao hn nhiu l v: A. Cc kim loi IB l kim loi chuyn tip c tnh kim loi mnh hn nn cu trc mng bn hn. B. Cc kim loi IB c mng lp phng tm khi bn hn C. Lin kt kim loi trong mng tinh th cc kim loi IB bn vng hn D. Nng lng hirat ha ca cc nguyn t nhm IA rt m Cu 57: sn xut 59,4 kg xenluloz trinitrat vi hiu sut 90%, th tch axit nitric 99,67% (khi lng ring D = 1,52g/ml) cn dng l: A. 55,2 lit. B. 2,76 lit. C. 5,52 lit. D. 27,6 lit. Cu 58: Este A c iu ch t aminoaxit B v ru metylic. T khi hi ca A so vi hiro l 44,5. t chy hon ton 8,9 gam este A thu c 13,2 gam kh CO2, 6,3 gam H2O v 1,12 lt kh N2 (ktc). Cng thc cu to ca A l: A. H2NCH(CH3)COOCH3. C. CH3COOCH2NH2. B. H2NCH2COOCH3. D. CH3COOCH(CH3)NH2.


50

Cu 59: X l mt ru, khi t chy X thu c a mol CO2 v b mol H2O. t T =a/b. Bit rng tr s T tng dn i vi cc cht ng ng ca X c khi lng phn t tng dn. X l: A. ru n chc no mch h, CnH2n+1OH. B. ru c cng thc dng CnH2n+ 2Ox hay CnH2n+2-x(OH)x. C. ru thm, cha mt nhn thm. D. l ru a chc hay n chc c mt vng, no. Cu 60: Cho cng thc cu to ca mt hp cht hu c (hnh bn): Tn gi theo danh php quc t IUPAC ca cht l: A. B. C. D. 2,5-iclo-6-brom-4-etyl-5-metyl hexan-3-ol. 1-Brom-2,5-iclo-2-metyl-3-etyl hexan-4-ol. 1,4-iclo-5-brom-1,4-imetyl-3-etylpentan-2-ol. 1-(1-Cloetyl)-3-clo-4-brom-3-metyl-2-etyl butan-1-ol.CH3 Br CH2 Cl CH2 OH CH3 CH3 C CH CH CH Cl

-------------------------------o Ht o-----------------------------Cho bit khi lng nguyn t (theo vC) ca cc nguyn t: H = 1 ; N = 14 ; O = 16 ; Mg = 24 ; Al = 27 S = 32 ; Cl = 35,5 ; K = 39 ; Ca = 40 ; Cr = 52 ; Cu = 64 ; Zn = 65 ; Ag = 108 ; Ba = 137 ; Pb = 207 Th sinh khng c s dng ti liu. Cn b coi thi khng gii thch g thm. H v tn th sinh:................................................................S bo danh...................................................

THI N TP HA HC 12 LUYN THI S 2 ( thi ny gm c 5 trang)


M 423 P N Cu 0 1 2 3 4 5 1 B A D A B D 2 C B D B C D 3 A C A D A C 4 B D B B A A 5 D A D C D C 6 D C A C B C 7 B C A C B D 8 D B D C C B 9 A D B D A B 10 C B C A A A

B LUYN THI HA HC 12 THI TH S 3 ( thi ny gm c 7 trang)

THI TUYN SINH I HC, CAO NG Mn thi: HA HCThi gian lm bi: 90 pht (Khng k thi gian pht )

H tn th sinh:........................................................................ S bo danh:............................................................................ Cho bit khi lng nguyn t (theo vC) ca cc nguyn t: H = 1 ; N = 14 ; O = 16 ; Mg = 24 ; Al = 27 ; S = 32 ; Cl = 35,5 ; K = 39 ; Ca = 40 ; Cr = 52 ; Fe = 56 ; Ni = 59 ; Cu = 64 ; Zn = 65 ; Sr = 88 ; Ag = 108 ; Ba = 137 ; Hg = 201 ; Pb = 207

M : 189

PHN CHUNG CHO TT C CC TH SINH (40 cu, t cu 1 n cu 40) Cu 1: Cho 30,6g hn hp gm Mg, Zn, Ag tc dng vi 900 ml dung dch HCl 1M va . Cho t t NaOH vo A lng kt ta thu c l ln nht. Lc ly kt ta v nung nhit cao cho n khi lng khng i, thu c a gam cht rn. Gi tr ca a l: A. 38,7 gam. B. 37,8 gam. C. 40,2 gam. D. 39,8 gam. Cu 2: X thuc chu k 4, Y thuc chu k 2 ca bng tun hon cc nguyn t ha hc. I i l nng lng ion ho th i ca mt nguyn t. Thc nghim cho bit t s Ik+1/ Ik ca X v Y nh sau: I3 I5 I6 I k+1 I2 I4 Ik I1 I2 I3 I4 I5 X 1,94 4,31 1,31 1,26 1,30 Y 2,17 1,96 1,35 6,08 1,25 Hp cht ion Z c to thnh t X v Y, vy Z l: A. CaF2. B. K2O. C. CaC2. D. K3N. Cu 3: Gi tr pKa ca 3 axit hu c: (1) CH3COOH, (2) ClCH2COOH, (3) ICH2COOH gim dn theo th t sau: A. (1) > (2) > (3). C. (1) > (3) > (2). B. (2) > (3) > (1). D. (3) > (2) > (1) Cu 4: em nung m gam hn hp A cha hai mui cacbonat ca hai kim loi u thuc phn nhm chnh nhm II trong bng h thng tun hon, thu c x gam hn hp B gm cc cht rn v c 5,152 lt CO2 (ktc) thot ra. em ha tan ht x gam hn hp B bng dung dch HCl th c 1,568 lt kh CO 2 (ktc) thot ra na v thu c dung dch D. em c cn dung dch D th thu c 30,1 gam hn hp hai mui khan. Tr s ca m l: A. 26,80 gam. B. 27,57 gam. C. 30,36 gam. D. 27,02 gam. Cu 5: Trong cc cht sau: NaCl, CH3NH2, C, I2, CuCl2, MgO ; nhng cht khng c lin kt ion trong phn t l: A. NaCl, CuCl2, MgO. C. CH3NH2, C, I2, MgO B. CH3NH2, C, I2. D. NaCl, CuCl2. Cu 6: Cho mt inh st lung d vo 20 ml dung dch mui nitrat kim loi X c nng 0,1M. Sau khi phn ng xy ra hon ton, thu c dung dch D. Khi lng dung dch D gim 0,16 gam so vi dung dch nitrat X lc u. Bit tt c kim loi X to ra bm ht vo inh st cn d. Kim loi X l: A. ng (Cu). C. Niken (Ni). B. Thy ngn (Hg). D. Mt kim loi khc. Cu 7: X, Y, Z l ba hirocacbon mch h. em nung nhit cao, trong iu kin khng c khng kh, th cc hirocacbon ny b nhit phn to cacbon v kh hiro. S mol kh hiro thu c do s nhit phn mi cht u gp 3 ln s mol mi hirocacbon em nhit phn. Y hn X mt nguyn t cacbon, Z hn Y mt nguyn t cacbon trong phn t v X khng lm mt mu nc brom. Pht biu ng l: A. Y, Z lm mt mu nc bom. B. X, Y, Z l ng ng ca nhau. C. C ba cht u lm mt mu thuc tm. D. A, B, C u sai. Copyright 2009 [email protected]

Cu 8: 4,58 gam. chn khng dung tch 500 cm3 cha m gam HgO rn. un nng bnh n 5000C xy A. Trong bnh B. 4,34 gam. C. 5,425 gam. D. A, B, C sai Cu 9: ng: 2HgO(r) sau: H2 (k) + KMnO + H khi cn ... Tng atm. cn lng nh nht ca thu ngn ra phn Xt phn ng 2HgO2+ O2(k). p4 sut 2SO4 bng l 4h s Khibng (nguyn dng, ti gin) ca cn ng trn hnh th nghim ny l: oxit phnly tinl: A. 24. B. 25. C. 26. D. 27. Cu 10: 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 c 16,72 gam CO2. Khi lng mi cht trong 0,25 mol hn hp A l: A. 10,8 gam ; 11,7 gam. C. 3,84 gam ; 8,06 gam. B. 7,2 gam ; 9,62 gam. D. 5,52 gam ; 11,70 gam. Cu 11: Cho m gam bt kim loi ng vo 200 ml dung dch HNO3 2M, c kh NO thot ra. ha tan va ht cht rn, cn thm tip 100 ml dung dch HCl 0,8M vo na, ng thi cng c kh NO thot ra. Tr s ca m l: A. 9,60 gam. B. 11,52 gam. C. 10,24 gam. D. A, B, C sai. o Cu 12: un nng hn hp X gm 2 ru no n chc vi H 2SO4 c 140 C thu c 21,6 gam nc v 72 gam hn hp Y gm 3 ete. Bit s mol mi cht trong Y u bng nhau, cng thc cu to thu gn ca 2 ru trong X l: A. CH3OH ; C2H5OH. C. CH3OH ; C3H7OH. B. C2H5OH ; C3H7OH. D. C2H5OH ; C4H9OH. Cu 13: Trn 100 ml dung dch CH3COOH 0,2M vi 100 ml dung dch NaOH 0,2M n phn ng hon 4,76 ton thu c 200 ml dung dch B. Bit K a CH3COOH = 10 , pH ca dung dch B l: A. 5,12. B. 8,88. C. 9,03. D. 4,97. Cu 14: Trong cc dung dch sau, dung dch c pH < 7 l: A. H2SO4, FeCl3, HCl, NaHCO3 C. CH3COONH4, NH4HCO3, HCl, NaHS B. HNO3, Cu(NH3)4(OH)2, NH4HCO3 D. FeCl3, HOOCCH2CH(NH2)COOH Cu 15: Hn hp A gm cc kh: CO, CO2 v H2 c to ra do hi nc tc dng vi than nng nhit cao. Cho V lt hn hp A (ktc) tc dng hon ton vi ZnO lng d, un nng. Thu c hn hp cht rn B v hn hp kh hi K. Ha tan ht hn hp B bng dung dch HNO 3 m c th thu c 8,8 lt kh NO2 duy nht (o 27,3C; 1,4 atm). Bit rng cc phn ng to hn hp A c hiu sut 80% v than gm Cacbon c ln 4% tp cht tr. Khi lng than dng to c V lt hn hp A (ktc) l: A. 1,953 gam B. 1,25 gam C. 1,152 gam D. 1,8 gam Cu 16: Xt chui phn ng sau: Mg 3 N 2 A B NO C NO . Trong s bn, A, B, C ln lt c th l: A. NH3 ; N2 ; Fe[NO](SO4). C. NH3 ; N2O ; NO2. B. NH4Cl ; NH3 ; NOCl. D. A, B u ng. Cu 17: Nylon-6,6 l mt loi t si tng hp c to ra do: A. S trng ngng gia axit tereptalic vi etylenglicol. B. S trng ngng ca axit sucsinic v hexametyleniamin. C. S trng ngng ca axit -aminoenantoic. D. S trng ngng gia axit aipic vi hexametyleniamin. Cu 18: em nung nng mt lng qung hematit (cha Fe2O3, c ln tp cht tr) v cho lung kh CO i qua, thu c 300,8 gam hn hp cc cht rn, ng thi c hn hp kh thot ra. Cho hp th hn hp kh ny vo bnh ng lng d dung dch xt th thy khi lng bnh tng thm 52,8 gam. Nu ha tan ht hn hp cht rn trong lng d dung dch HNO3 long th thu c 387,2 gam mt mui nitrat. Hm lng Fe2O3 (% khi lng) trong loi qung hematit ny l: A. 20 %. B. 40 %. C. 60 %. D. 80 %. Cu 19: Trong cc phn ng sau, phn ng khng xy ra iu kin thng l: A. 2KI + 2FeCl3 2FeCl2 + 2KCl + I2. C. 2NaI + Na2S4O6 I2 + 2Na2S2O3. B. 2KI + O3 + H2O 2KOH + O2 + I2. D. KI + I2 KI3. Cu 20: Mt hn hp A gm ru metylic, ru etylic v phenol c khi lng 28,9 gam. Chia A lm hai phn bng nhau. Phn th nht phn ng hon ton vi Na thu c 2,806 lit kh H2 (27oC ; 750 mmHg). Phn th hai phn ng hon ton vi 100 ml dung dch NaOH 1M. % khi lng ru etylic trong hn hp A l: Copyright 2009 [email protected]

A. 11,07 %. B. 23,88 %. C. 15,91 %. D. 25,47 %. Cu 21: Chn cu sai trong cc cu sau: A. Ion Ag+ d nng nh vn c kh nng st trng, dit khun. B. Phn ln Au dng ch to cc hp kim: AuCu ; AuNi, Au Ag. C. Bc c tnh kh yu cn vng c tnh kh rt yu. D. Trong cc kim loi bc dn in tt nht cn vng dn nhit tt nht. Cu 22: Ho tan hon ton 7,82 gam XNO3 vo nc thu c dung dch A. in phn dung dch A vi in cc tr. Nu thi gian in phn l t giy th thu c kim loi ti catot v 0,1792 lt kh (ktc) ti anot. Nu thi gian in phn l 2t giy th thu c 0,56 lt kh (ktc). Bit I = 1,93 A. Gi tr ca t l: A. 3200s. B. 1600s. C. 4800s. D. 800s. Cu 23: 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: A. HOCH2CH2CH2COOH. C. HOOCCH2CH2COOH. B. HOCH2COCH2COOH. D. HOCH2CH2OCH2COOH. Cu 24: Tnh oxi ha ca cc ion c xp theo th t gim dn nh sau: A. Fe3+ > Cu2+ > Fe2+ > Al3+ > Mg2+. C. Al3+ > Mg2+ > Fe3+ > Fe2+ > Cu2+. 2+ 3+ 2+ 3+ 2+ B. Mg > Al > Fe > Fe > Cu . D. Fe3+ > Fe 2+ > Cu 2+ > Al3+ > Mg2+. Cu 25: Dn hn hp hai kh fomanehit v hiro qua ng s c cha bt Ni lm xc tc, un nng. Cho hp th ht kh v hi cc cht c th ha tan trong nc vo bnh ng lng nc d, c dung dch D. Khi lng bnh tng 14,1 gam. Dung dch D tc dng hon ton vi lng d dung dch AgNO 3 trong amoniac, lc ly kim loi em ha tan ht trong dung dch HNO3 long th thu c 4,48 lt NO duy nht (ktc). Khi lng ru metylic thu c l: A. 9,6 gam. B. 5,1 gam. C. 6,4 gam. D. 11,2 gam Cu 26: t chy hon ton 4,4g sunfua ca kim loi M (cng thc MS) trong oxi d. Cht rn sau phn ng em ho tan trong 1 lng va dung dch HNO 3 37,8% thy nng phn trm ca mui trong dung dch thu c l 41,72%. Khi lm lnh dung dch ny th thot ra 8,08g mui rn. Lc tch mui rn thy nng phn trm ca mui trong dung dch l 34,7%. Cng thc mui rn tch ra sau phn ng l: A. Fe(NO3)2.9H2O. C. Fe(NO3)3.9H2O. B. Cu(NO3)2.5H2O. D. A, B, C u sai. Cu 27: Hn hp A gm hai kim loi kim hai chu k lin tip nhau. Ha tan 0,37 gam hn hp A trong nc d, thu c dung dch X. Cho 100 ml dung dch HCl 0,4M vo dung dch X, c dung dch Y. trung ha va lng axit cn d trong dung dch Y, cn thm tip 100 ml dung dch NaOH 0,1M. Hai kim loi kim trn l: A. Li ; Na. B. Na ; K. C. K ; Rb. D. Rb ; Cs. Cu 28: (CnH2n-1COO)3CmH2m-1 l cng thc tng qut ca este sinh ra bi: A. Ru no ba chc v axit n chc cha no cha 1 ni i C=C. B. Ru cha no ba chc cha 1 ni i C=C v axit ba chc. C. Ru ba chc, c 2 lin kt v axit n chc c mt lin kt C=C. D. Ru cha no ba chc, c 1 lin kt v axit no n chc. Cu 29: 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: A. 35,48 gam. B. 12,6 gam. C. 22,88 gam D. A, B, C sai. Cu 30: Ngi ta trn V1 lt dung dch cha cht tan A c t khi d 1 vi V2 lt dung dch cha cng cht tan c t khi d2 thu c V lt dung dch c t khi d. Coi V = V 1 + V2. Biu thc lin h gia d, d1, d2, V1, V2 l: V1d1 + V2 d 2 V1 d d1 = A. d = C. V1 + V2 V2 d 2 d V2 d 2 d V1d 2 + V2 d1 = B. D. d = V1 d d1 V1 + V2 Copyright 2009 [email protected]

Cu 31: un nng 20 gam mt loi cht bo trung tnh vi 250 ml dung dch NaOH 0,1M. Dung dch sau phn ng lm qu tm ha xanh. qu tm khng i mu, ngi ta cn thm tip vo dung dch 180 ml dung dch HCl pH = 1. Khi lng x phng cha 72% mui Natri ca axit bo sinh ra t 1 tn cht bo trn l: A. 1434,26 Kg. C. 1208,69 Kg. B. 2143,58 Kg. D. 1135,47 Kg. Cu 32: 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. Cu 33: Cho 250 ml dung dch A gm hai mui MgSO4 v Al2(SO4)3 tc dng vi dung dch NaOH d, lc kt ta em nung n khi lng khng i, thu c 8 gam cht rn. Cng 250 ml dung dch trn nu cho tc dng vi dung dch amoniac d, lc kt ta em nung nhit cao cho n khi lng khng i th thu c 23,3 gam cht rn. Cc phn ng xy ra hon ton. Nng mol/l mi mui trong dung dch A l: A. MgSO4 0,8M ; Al2(SO4)3 0,8M. C. MgSO4 0,8M ; Al2(SO4)3 0,6M. B. MgSO4 0,8M ; Al2(SO4)3 1M. D. MgSO4 0,6M ; Al2(SO4)3 0,8M. Cu 34: 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. C. Khong 2,04 lt. B. Khong 1,85 lt. D. Khong 2,50 lt. Cu 35: Polyeste l mt loi t si tng hp, n c to ra do s trng ngng (ng trng ngng) gia axit axit 1,4-Bezenicacboxilic vi Etaniol-1,2. Mt loi t Polyeste c khi lng phn t l 153600. S n v mt xch trong phn t polyme ny l: A. 808. B. 800. C. 768. D. 960. Cu 36: 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 CH 3COOH v a mol CH3CH2OH, th khi phn ng t trng thi cn bng, s thu c 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. a/4 mol CH3COOCH2CH3 ; a/4 mol H2O. Cu 37: Xt 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. C. CH2CHCOOH; C3H4. B. CH3COOH; C3H4. D. HCOOH; C2H2 Cu 38: 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: HOC3H2(COOH)3. HOC3H4(COOH)3. (HO)2OC4H4(COOH)2. (HO)3O2C5H4COOH. Cu 39: Cho cc cht sau: (1) Benzoic ; (2) p-Nitrobenzoic ; (3) p-Etylbenzoic ; (4) p-Clobenzoic. Copyright 2009 [email protected]

Th t gim dn tr s pKb ca cc axit trn l: A. (1) > (2) > (3) > (4). C. (3) > (1) > (4) > (2). B. (2) > (4) > (1) > (3). D. (1) > (3) > (4) > (2). Cu 40: Cho hn hp A: 0,15 mol Mg , 0, 35 mol Fe phn ng vi V lit dung dch HNO3 1M. Sau phn ng, thu c dung dch B, hn hp G gm 0,05 mol N2O, 0,1 mol NO (ktc) v cn 2,8 gam kim loi. Gi tr ca V l: A. 1,1. B. 1,15. C. 1,22. D. 1,225. PHN RING Th sinh ch c chn 1 trong 2 phn sau Phn 1: Theo chng trnh chun (10 cu, t cu 41 n cu 50) Cu 41: Xem phn ng cn bng sau y l phn ng n gin: 2SO2(k) + O2(k) 2SO3(k). Phn ng trn ang trng thi cn bng trong mt bnh cha nhit xc nh. Nu lm gim th tch bnh cha mt na, tc lm tng nng mol/lt cc cht trong phn ng trn gp i th: A. Vn tc phn ng tng 8 ln B. Vn tc phn ng nghch tng 4 ln C. Vn tc phn ng thun tng 8 ln D. Phn ng s trn s dch chuyn theo chiu thun Cu 42: Cho glucoz ln men vi hiu sut 70%, hp th ton b sn phm kh thot ra vo 2 lt dung dch NaOH 0,5M (d = 1,05 g/ml) thu c dung dch cha hai mui vi tng nng l 12,27%. Khi lng glucoz dng l: A. 129,68 gam B. 192,86 gam C. 168,29 gam D. 186,92 gam Cu 43: Pin Zn Ag c biu din theo s sau: () Zn | Zn(NO 3)2 || AgNO3 | Ag (+). Cho bit cc o o gi tr th kh chun: E Zn2+ / Zn = 0,76V; EAg+ / Ag = +0,8V . Sut in ng chun ca pin to thnh bi 2 cp oxi ha kh trn l: A. 0,04V. B. 1,56V. C. 2,36V. D. A, B, C sai. Cu 44: Gii php iu ch khng hp l l: A. Dng phn ng kh K2Cr2O7 bng than hay lu hunh iu ch Cr2O3. B. Dng phn ng ca mui Cr (II) vi dung dch kim d iu ch Cr(OH)2. C. Dng phn ng ca mui Cr (III) vi dung dch kim d iu ch Cr(OH)3. D. Dng phn ng ca H2SO4 c vi dung dch K2Cr2O7 iu ch CrO3. Cu 45: Ngm mt vt bng ng c khi lng 10 gam trong 250 gam dung dch AgNO3 4%. Khi ly vt ra khi dung dch th lng AgNO3 trong dung dch gim 17%. Khi lng ca vt sau phn ng l: A. 11,08 gam. B. 10,76 gam. C. 17,00 gam. D. 27,00 gam. +CH3I + HONO + CuO, t 0C Cu 46: Cho s phn ng: NH3 X Y Z. ( ty 1 le mol :1) Bit Z c kh nng tham gia phn ng trng gng. Hai cht Y v Z ln lt l: A. CH3OH, HCOOH. C. CH3OH, HCHO. B. C2H5OH, HCHO. D. C2H5OH, CH3CHO. Cu 47: Dy gm cc cht u lm giy qu tm m chuyn sang mu xanh l: A. metyl amin, amoniac, natri axetat. C. anilin, metyl amin, amoniac. B. amoni clorua, natri hiroxit. D. anilin, amoniac, natri hiroxit. Cu 48: Cho 15,6 gam hn hp hai ancol (ru) n chc, k tip nhau trong dy ng ng tc dng ht vi 9,2 gam Na, thu c 24,5 gam cht rn. Hai ancol l (cho H = 1, C = 12, O = 16, Na = 23) A. C3H5OH v C4H7OH. C. C3H7OH v C4H9OH. B. C2H5OH v C3H7OH. D. CH3OH v C2H5OH. Cu 49: Cc oxit ca nito c dng NOx trong khng kh l nguyn nhn gy ra nhim. Ngun to ra kh NOx ph bin hin nay l: A. Bnh acquy C. Thuc dit c B. Kh thi ca phng tin giao thng D. Phn bn ha hc Cu 50: Hn hp X gm axit HCOOH v axit CH3COOH (t l mol 1:1). Ly 5,3 gam hn hp X tc dng vi 5,75 gam C2H5OH (c xc tc H2SO4 c) thu c m gam hn hp este (hiu sut ca cc phn ng este ho u bng 80%). Gi tr ca m l: 10,12. 6,48. 8,10. 16,20. Copyright 2009 [email protected]

Phn 2: Theo chng trnh nng cao (10 cu, t cu 51 n cu 60) Cu 51: Vng c th tan c trong cc dung dch: A. nc cng toan, dd KCN. C. dd HCl, dd HNO3. B. nc cng toan, dd HNO3. D. dd H2SO4 c nng. Cu 52: Hin tng c m t khng ng l: A. Thi kh NH3 qua CrO3 un nng thy cht rn chuyn t mu sang mu lc thm. B. un nng S vi K2Cr2O7 thy cht rn chuyn t mu da cam sang mu lc thm. C. Nung Cr(OH)2 trong khng kh thy cht rn chuyn t mu lc sng sang mu lc thm. D. t CrO trong khng kh thy cht rn chuyn t mu en sang mu lc thm. Cu 53: Cho 1 pin in ha c to bi cp oxi ha/kh: Fe 2+/Fe v Ag+/Ag. Phn ng xy ra cc m ca pin in ha ( iu kin tiu chun) l: A. Fe Fe2+ + 2e C. Ag+ + 1e Ag 2+ B. Fe + 2e Fe D. Ag Ag+ + 1e Cu 54: Cho cn bng ho 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 nghch khi gim nng O2. C. Cn bng chuyn dch theo chiu thun khi gim p sut h phn ng. D. Cn bng chuyn dch theo chiu nghch khi gim nng SO3. Cu 55: Cho hn hp X gm hai cht hu c c cng cng thc phn t C2H7NO2 tc dng va vi dung dch NaOH v un nng, thu c dung dch 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. 16,5 gam. B. 14,3 gam. C. 8,9 gam. D. 15,7 gam. Cu 56: Mnh khng ng l: A. CH3CH2COOCH=CH2 cng dy ng ng vi CH2=CHCOOCH3. B. CH3CH2COOCH=CH2 tc dng vi dung dch NaOH thu c anehit v mui. C. CH3CH2COOCH=CH2 tc dng c vi dung dch Br2. D. CH3CH2COOCH=CH2 c th trng hp to polime. [H ],xtPt [O],xtPt Cu 57: Trong cng nghip kh thi c x l nh sau: CO, NO,C x H y A B Sau thi B vo mi trng. Trong s trn: A. A gm N2, NH3, CO2, H2O. C. A gm N2, NH3, CO, CxHy. B. B gm N2, CO, CxHy. D. B gm N2, H2O, CO2, CxHy. Cu 58: Cc ng phn ng vi cng thc phn t C8H10O (u l dn xut ca benzen) c tnh cht: tch nc thu c sn phm c th trng hp to polime, khng tc dng c vi NaOH. S lng ng phn ng vi cng thc phn t C8H10O, tho mn tnh cht trn l: 1. 4. 2. 3. Cu 59: t chy hon ton a mol mt anehit X (mch h) to ra b mol CO 2 v c mol H2O (bit rng: b = a + c). Trong phn ng trng gng, mt phn t X ch cho 2 electron. X thuc dy ng ng anehit: A. khng no c hai ni i, n chc. C. no, n chc. B. khng no c mt ni i, n chc. D. no, hai chc. Cu 60: phn bit ru bc I, bc II, bc III ngi ta c th dng thuc th: A. Zn/H B. Na C. Cu(OH)2 D. A, B, C Cl sai -------------------------------o Ht o-----------------------------Th sinh khng c s dng ti liu. Cn b coi thi khng gii thch g thm.

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THI N TP HA HC 12M : 315 ( thi ny gm c 4 trang)


H v tn hc sinh:................................................................................................................................................. S bo danh:............................................................................................................................................................. LUYN THI S 4 Cu 1: t chy hon ton mt ru (ancol) X thu c CO2 v H2O c t l s mol tng ng l 3:4. Th tch kh oxi cn dng t chy X bng 1,5 ln th tch kh CO 2 thu c ( cng iu kin). Cng thc phn t ca X l: A. C3H8O B. C3H8O3 C. C3H4O D. C3H8O2 Cu 2: lm mm nc cng vnh cu, c th dng: A. K2CO3 B. KHSO4 C. K2SO4 D. NaNO3 Cu 3: Dy ng ng ca Axit acrylic (CH2=CH-COOH) c cng thc chung l: A. (C2H3COOH)n C. CnH2n 1COOH B. C2nH3nCOOH D. CnH2nCOOH Copyright 2009 [email protected]

Cu 4: Trn 100ml dung dch Ba(OH)2 0,5M vi 100ml dung dch KOH 0,5M , c dung dch X. Nng mol/l ca ion OH- trong dung dch l: A. 0,25M B. 0,75M C. 0,5M D. 1,5M Cu 5: Este X phn ng vi dung dch NaOH, un nng to ra ru metylic v natri axetat. Cng thc cu to ca X l: A. HCOOCH3 C. CH3COOC2H5 B. C2H5COOCH3 D. CH3COOCH3 Cu 6: Nguyn t X c cu hnh electron phn lp ngoi l: np4. Ion X c in tch l: A. 1B. 2C. 1+ D. 2+ Cu 7: Cho 1,8 gam mt axit (A) n chc phn ng ht vi NaHCO3. Dn ht kh thu c vo bnh dung dch KOH d; thy khi lng cht tan trong bnh tng 0,78 gam. Vy (A) c CTCT: A. C2H5 COOH C. CH3COOH B. C3H7COOH D. CH2=CHCOOH Cu 8: Cho 4 hp cht hu c: (1)etan1,2diol, (2)propan1,3diol, (3)propan1,2diol, (4) glixerin. Cc cht l ng phn ca nhau gm: A. 1,2 B. 1,4 C. 2,3 D. 1,2,3 Cu 9: Cht hu c A: C3H8Ox , ch cha mt loi chc, phn ng c vi Na c s ng phn l: A. 3 B. 4 C. 5 D. 6 Cu 10: Cho 0,336 lit SO2 (kc) phn ng vi 200ml dung dch NaOH ; thu c 1,67 g mui. Nng dung dch NaOH em phn ng l: A. 0,01M B. 0,10M C. 0,15M D. 0,20M Cu 11: Mt cht hu c X cha C, H, O ch cha mt loi chc cho 2,9g X phn ng vi dung dch AgNO3/NH3 d thu c 21,6g Ag. Vy X c th l: A. HCHO B. OHCCHO C. CH2(CHO) D. C2H5CHO Cu 12: un ru (A) vi HBr, thu c cht hu c (B) c %Br = 58,4%. (A) l: A. C2H5OH C. C4H9OH B. C3H7OH D. CH2=CH-CH2OH Cu 13: t chy hon ton mt cht hu c A nhiu ln axit thu c 4,032lt kh CO 2 (o ktc) v 2,7 gam nc. CTN A l: A. (C2H3O2)n B. (C4H7O2)n C. (C3H5O2)n D. (C2H4O2)n Cu 14: un nng ru etylic vi H2SO4 c 170oC thu c hn hp hi A gm 4 cht kh. Vy hn hp A c: A. C2H4, H2Ohi, H2, CO2 C. C2H4, H2Ohi, H2, SO2 B. C2H4, H2Ohi, SO2, CO2 D. CH4, H2Ohi, H2, SO2 Cu 15: t chy hon ton 0,09g este n chc B thu c hn hp gm 0,123g CO 2 v 0,054g H2O. CTPT ca B l: A. C2H4O2 B. C3H6O2 C. CH2O2 D. C4H8O2 Cu 16: C 5 dung dch ng trong cc l mt nhn: BaCl2, NH4Cl, (NH4)2SO4, NaOH, Na2CO3. Ch dng qu tm ta nhn bit c: A. BaCl2 C. BaCl2, Na2CO3 , NaOH B. C 5 cht D. NaOH Cu 17: Bnh c m g bt Fe, np Cl2 d vo bnh. Khi phn ng xong cht rn trong bnh tng 106,5g. Vy gi tr ca m l: A. 28g B. 14g C. 42g D. 56g Cu 18: Cho 0,125 mol oxit kim loi phn ng ht vi HNO3 thu uc NO v dung dch B cha mt mui duy nht. C cn dung dch B thu c 30,25 gam rn. Vy oxit c th l: A. Fe2O3 B. Fe3O4 C. Al2O3 D. FeO Cu 19: Cho 24,8 gam hn hp gm mt kim loi kim th v oxit ca n c t l mol 1:1 tc dng vi dung dch HCl d thu c 55,5g mui khan. Kim loi trn l: A. Ca B. Sr C. Ba D. Mg Cu 20: Cho 1,52g hn hp 2 ru n chc tc dng ht vi Na d thu 2,18g mui. Vy hai ru l: A. CH3OH, C3H7OH C. C2H5OH, C3H7OH B. C3H7OH, C4H9OH D. C3H5OH, C4H7OH Copyright 2009 [email protected]

Cu 21: Cho 7,4 gam hn hp X cha 2 cht hu c tc dng hon ton vi dung dch AgNO3 d trong NH3 thu c 64,8 gam Ag. Hn hp X l: A. HCHO, CH3CHO C. CH3CHO, C2H5CHO B. C2H5CHO, C3H7CHO D. C3H7CHO, C3H7CHO Cu 22: t ru A. Dn ht sn phm chy vo bnh ng dung dch Ca(OH)2 d; thy c 3 gam kt ta v khi lng bnh tng 2,04 gam. Vy A l: A. CH3OH B. C2H5OH C. C3H7OH D. C4H9OH Cu 23: Ha tan ht 1,02 gam oxit cn 100ml dung dch hn hp: Ba(OH)2 0,025M,KOH 0,15M. Vy oxit c th l: A. Al2O3 B. Cr2O3 C. ZnO D. PbO Cu 24: Cho 3g hn hp gm 3 kim loi ng trc H2 trong dy hot ng ha hc phn ng ht vi H2SO4 d, thu c 1,008 lt H2 (kc). C cn dung dch thu c mg rn. Vy m c th bng: A. 7,32g B. 5,016g C. 2,98g D. 5,00 g Cu 25: A l andehyt c % O = 37,21%. (A) c th iu ch: A. C2H4(OH)2 B. C3H6(OH)2 C. C4H8(OH)2 D. CH3OH Cu 26: t chy hon ton mt chat hu c A nhiu ln axit thu c 1,344 lt kh CO 2 (o ktc) v 0,9 gam nc. CTN A l: A. (C2H3O2)n B. (C4H7O2)n C. (C3H5O2)n D. (C2H4O2)n Cu 27: Thy phn X c sn phm gm glucz v fructz. X l: A. Saccarz B. Mantz C. Tinh bt D. Xenlulz Cu 28: Ha tan m gam hn hpA: Cu, Ag trong dung dch hn hp: HNO3, H2SO4 ; thu c dung dch B cha 7,06 gam mui v hn hp G: 0,05 mol NO ; 0,01 mol SO2. Khi lng hn hp A bng: A. 2,58 B. 3,06 C. 3,00 D. 2,58 Cu 29: X cha C, H, O c MX = 60 vC. S ng phn ca X, c th phn ng c vi NaOH l: A. 1 B. 2 C. 3 D. 4 Cu 30: un 6,96 gam ru A vi 10,4 gam CuO (d). Sau phn ng thu c mt andehyt n chc B v 8,48 gam rn. CTPT A ; B l: A. CH3OH, H-CHO C. C2H5OH, CH3 CHO B. CH2=CH-CH2OH, CH2=CH-CHO D. C3H7OH, C3H7-CHO Cu 31: C 4 dung dch trong sut, mi dung dch ch cha mt loi cation v mt loi anion. Cc loi ion trong c 4 dung dch gm Ba2+, Mg2+, Pb2+, Na+, SO4 2-, Cl-, CO32-, NO3-. Trong 4 dung dch c 2 dung dch cha cc ion sau: A. NO3-; Na + ; Cl ; Mg 2 + C. Na + ; NO3 ; Pb2 +; CO32 D. A v C B. SO42 ; Na + ; Cl ; Ba 2+ Cu 32: Trong mt cc nc cha a mol Ca2+, b mol Mg 2+, c mol Cl- v d mol HCO3 - Biu thc lin h gia a, b, c, d l: A. a + b = c + d C. 2a + 2b = c + d B. 3a + 3b = c + d D. Kt qu khc Cu 33: Ha tan ht m gam hn hpA: Mg, Cu, Fe trong H2SO4 c ; thu c 2,016 lit SO2 (kc) v dung dch B cha 10,72 gam mui. Gi tr m l: A. 1,32g B. 2,08 g C. 2,32g D. 2,68g Cu 34: T Cu, O2, HCl, Cl2 (Cc iu kin phn ng coi nh c ) ta c th vit c bao nhiu phn ng tao ra ng c mc oxi ha bng +2: A. 2 B. 3 C. 4 D. 5 Cu 35: t chy hon ton mt th tch kh CH4, C2H4, C2H6 bng oxi khng kh (trong khng kh, oxi chim 20% th tch), thu c 7,84 lt kh CO2 ( ktc) v 9,9 gam nc. Th tch khng kh ( ttc) nh nht cn dng t chy hon ton lng kh thin nhin trn l: A. 70,0 lt B. 84,0 lt C. 56,0 lt D. 78,4 lt Cu 36: Ha tan hn hpA: 0,1mol Cu2S ; 0,05mol FeS2 trong HNO3 ; thu c dung dch B. Cho dung dch Ba(NO3)2 d vo dung dchB. Sau phn ng thu c m g kt ta. Gi tr m l: A. 34,95 g B. 46,6g C. 46,75g D. 42,52 g Cu 37: Trn 100g dung dchAgNO3 17% vi 200 g dung dchFe(NO3)2 18%, thu c dung dch A c khi lng ring bng 1,446 g/ml. Vy th tch dung dch s bng: Copyright 2009 [email protected]

A. 200 ml B. 250ml C. 207,4 D. 207 Cu 38: Trong cng nghip, natri hiroxit c sn xut bng phng php: A. in phn dung dch NaCl, khng c mng ngn in cc. B. in phn dung dch NaCl, c mng ngn in cc. C. in phn dung dch NaNO3 , khng c mn ngn in cc D. in phn NaCl nng chy. Cu 39: C 3 cht lng Toluen, phenol, stiren, ng ring bit trong 3 l mt nhn. Thuc th phn bit 3 cht lng trn l: A. dung dch phenolphtalein. C. nc brom. B. dung dch NaOH. D. giy qu tm. Cu 40: Cht kh X, gy vn c nc vi trong, lm mt mu dung dch KMnO4: A. CO2 B. SO2 C. H2S D. SO3 Cu 41: hn hpX gm 2 hydrocacbon mch h. Cho 3,36 lit X vo bnh dung dchBr 2 d ; thy khi lng Br2 gim 16 gam v c 2,24 lit kh bay ra. Nu t ht X ri dn ht sn phm kh vo bnh dung dch Ca(OH)2 d, thy c 20 gam kt ta.Hai hydrocacbon l: A. CH4, B. CH4, C. C2H4, D. C2H6, C2H2 C3H4 C3H8 C3H4 Cu 42: Cho hn hp A: 0,15 mol Mg , 0, 35 mol Fe phn ng vi V lit dung dch HNO3 1M ; thu c dung dch B, hn hp G gm 0,05 mol N2O, 0,1 mol NO v cn 2,8 gam kim loi. Gi tr V l: A. 1,1 B. 1,15 C. C.1,22 D. D.1,225 Cu 43: Cho dy cc cht: NaHCO3, NH4Cl, (NH4)2CO3, AlCl3, NaHSO3, Zn(OH)2. S cht trong dy c tnh cht lng tnh l: A. 2 B. 3 C. 4 D. 5 Cu 44: Ha tan 5 g hn hp kim loi Cu, Fe bng 690 ml dung dch HNO 3 1M. Sau khi phn ng xy ra hon ton thu c cht rn A cn nng 3,75 g, dung dch B v 7,3248 lt hn hp kh NO2 v NO 54,6 oC v 1 atm. C cn dung dch B thu c m g rn. Gi tr m: A. 27,135 gam B. 27,685 gam C. 29,465 gam D. 30,650 gam Cu 45: Cho 1 gam FexOy phn ng vi 13,035 ml dung dch HCl 10%(d=1,05 g/ml) thy phn ng xy ra va . Oxit st trn c %Fe bng: A. 70% B. 77,78 % C. 72,41% D. 46,67 Cu 46: Ha tan ht 8 gam MxOy thy cn 150ml dung dch H2SO4 long c nng 1 mol/l. Oxit l: A. Fe3O4 B. Fe2O3 C. FeO D. CuO Cu 47: Cho 5,04 gam hn hp A: Fe, Cu ( c t l khi lng tng ng 3:7) phn ng vi 350ml dung dch HNO3 0,2M. Khi kt thc phn ng thy cn 3,78 gam kim loi v thu c V lit (kc) hn hpG gm NO, NO2. Gi tr V (lit) l: A. 0,448 B. 0,56 C. 0,672 D. 8,96 Cu 48: Ha tan hon ton 11,2 gam kim loi M trong dung dch HCl thu c x gam mui clorua. Nu ha tan hon ton m gam M trong dung dch HNO3 long d thi thu c y gam mui nitrat. Bit x, y chnh lch nhau 23 gam. Kim loi M l: A. Mg B. Zn C. Fe D. Al Cu 49: Mt este A c 3 chc este mch h phn ng vi dung dch NaOH thu c mt mui v 12,4 g hai ru cng dy ng ng. Khi ha hi ht 12,4 gam hn hp hai ru trn thu c th tch hi bng th tch ca 9,6 gam oxi (trong cng iu kin). Hai ru l: A. CH3OH,C3H7OH ; CH3OH,C4H9OH C. CH3OH,C3H7OH ; CH3OH,C2H5OH B. CH3OH,C3H7OH D. CH3OH,C4H9OH Cu 50: Ha tan ht 8,1 (g) Al vo dung dch HNO3 long d. Sau phn ng thu c dung dch X cha 66,9 gam mui v 1,68 lt kh Y (ktc). Y l: A. NO2 B. NO C. N2O D. N2 -----------------o Ht o------------------


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P N S 41. 2. 3. 4. 5. 6. 7. 8. 9. 10. A A C B D B C C C B 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. B C C B A B D D A C 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. A C A A C C A C B B 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. C C B C A B A B C B 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. A B C A A B B C C C


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