May de Haytong Hop Lai Thui

Th git m hi ri trn trang sch........... Cn hn git nc mt ri thi

Chuyn cn. Sng to. c thnh cng.

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Tnh yu ha hc

Nu tnh em l dung dch axit.Anh xin nguyn lm baz trung ha.Hy phn ng v cng anh lin kt.Ta nhit nhiu thm nng bng tnh ta.

Nu tim em vn cn AO trng.Hy cho anh c hi c mt ln.t vo tim em cp e cn dang d. tnh anh mi mi bn em.

Anh s c nung tnh cho cn nc. men yu nng ln cao.Anh s c b sung nhiu xc tc. i mnh sm ha quyn vo nhau.

ng xem tnh anh l phn ng hai chiu.D vn bit hng s K qu nh.ng tng thm vo tim anh p sut. tnh anh khng cn mol yu.

Nng lng Gips anh s gim di khng. tnh anh lun t ng phn ng.Hy tim em l phn t i xng. tnh anh nh hng khi phn vn.

Tri tim em s khng b n mn.Bi tnh anh s lm mng bo v.Hy cho anh mt ln thi em nh!Anh s l nguyn t ca ring em!...

luyn thi s 1

Bit nguyn t khi cc nguyn t : H = 1; C = 12; N = 14; O = 16; Na = 23; Mg = 24; Al = 27; P = 31; S = 32; Cl = 35,5; K = 39; Ca = 40; Cr = 52; Mn = 55; Fe = 56; Cu = 64; Zn = 65; Br = 80; Ag = 108; Sn = 119; Ba = 137; Pb = 207.

Cu 1 :Cho 82,05 gam hn hp A gm Al v Al2O3 (c t l mol l 2,3:1) tan hon ton trong dung dch B cha H2SO4 v NaNO3 thu c dung dch C ch cha 3 mui v m gam hn hp kh D (trong D c 0,2 mol kh H2).Cho BaCl2 d vo C thy c 838,8 gam kt ta xut hi n.Mt khc cho 23 gam Na vo dung dch C sau khi cc phn ng xy ra th thy khi lng dung dch gim 3,1 gam v dung d ch sau phn ng khng c mui amoni .Gi tr ca m gn nht vi :

A.16 B.13 C.12 D.15

Cu 2 :Cho dd FeSO4 nng 15% phn ng va vi dd KOH nng 20% un nng trong kk p sy ra hon ton Tnh nng % ca mui trong dd sau p (coi nc bay hi ko ng k).

A.14,16% B.14,82% C.16,14% D.16,28%

Cu 3:Dng 19,04 lt khng kh ktc (O2 chim 20% v N2 chim 80% th tch) t chy hon ton 3,21 gam hn hp A gm hai amoniaxit no,n chc k ti p nhau trong dy ng ng . Hn hp thu c sau phn ng em lm kh (hn hp B) ri dn qua dung dch nc vi trong d thu 9,50 gam kt ta. Nu cho B vo bnh dung tch 2 lt, nhit 1270o th p sut trong bnh lc ny l P(atm). Bit amoni axit khi chy sinh kh N2. Gi tr ca P gn nht vi :

A.13 B.14 C.15 D.16

Cu 4: Cho 22,56 gam hn hp A gm kim loi M v MO (c ha tr khng i) tan hon ton trong dung dch HNO3 thu c 2,24(lt) hn hp kh B gm hai kh c t khi vi H2 l 7 v dung dch C.C cn cn thn dung dch C thu c 69,4 gam cht rn . Bit rng qu trnh kh HNO3 ch to ra 1 sn phm kh duy nht.% s mol ca cht tan c s mol t nht trong C l:

A.28% B.24% C.32% C.30%

Cu 5: Thy phn hon ton m gam hn hp hai este n chc mch h A,B (MA < MB) trong 700 ml dung d ch KOH 1M thu c dung dch X v hn hp Y gm 2 ancol l ng ng lin ti p.Thc hin tch nc Y trong H2SO4 c 140oCthu c hn hp Z.Trong Z tng khi lng ca cc ete l 8,04 gam (Hiu sut ete ha ca cc ancol u l 60%).C cn dung dch X c 54,48 gam cht rn. Nung cht rn ny vi CaO cho n khi phn ng xy ra hon ton, thu c 6,72 lt hn hp kh T (ktc). Phn trm khi lng ca A trong hn hp ban u l:

A.66,89% B.48,96 C.49,68 D.68,94 Cu 6:Cho 16,5gam cht A c CTPT l C2H10O3N2 vo 200 gam dung d ch NaOH 8%.Sau khi cc phn ng xy ra hon ton thu c dung d ch B v kh C.Tng nng % cc cht c trong B gn nht vi: A.8% B.9% C.10% D.11%

Cu 7: Hn hp A gm 0,3 mol hai ancol ng ng lin tip.t chy hon ton A thu c 0,5 mol CO2.Mt khc oxi ha A th thu c hn hp B gm cc axit v andehit tng ng (Bit 60 % lng ancol bin thnh andehit phn cn li bin thnh axit).Cho B vo dung dch AgNO3/NH3 d thu c m gam Ag.Gi tr ca m l :

A.38,88 gam B.60,48 gam C.51,84 gam D.64,08 gam

Cu 8: Cho 13,25 gam hn hp gm Al v Fe vo 500 ml dung dch Cu(NO3)2 0,75M v Fe(NO3)3 0,4M thu c dung dch X v m gam rn Y. Cho dung d ch NaOH d vo dung dch X, ly kt ta nung ngoi khng kh n khi lng khng i thu c 20,0 gam oxit duy nht. Gi tr m l.

A. 24,0 gam B. 21,2 gam C. 26,8 gam D. 22,6 gam

Cu 9:Cho 26,88 gam bt Fe vo 600ml dung dch hn hp A gm Cu(NO3)2 0,4M v NaHSO4 1,2M. Sau khi cc phn ng xy ra hon ton, thu c m gam cht rn B v kh NO (sn phm kh duy nht, ktc).Gi tr ca m l :

A.17,04 B.15,36 C.15,92 D.13,44

Cu 10:Hn hp X gm 3 peptit A,B,C u mch h c tng khi lng l m v c t l s mol l A B C,nA : nB : nC=2 : 3 : 5.Thy phn hon ton X thu c 60 gam Glyxin ; 80,1gam Alanin v 117 gam Valin.Bit s lin kt peptit trong C,B,A theo th t to nn 1 cp s cng c tng l 6. Gi tr ca m l :

A.226,5 B.262,5 C.256,2 D.252,2

Cu 11: Cho m gam hn hp X gm Cu v Fe3O4 tc dng vi dung dch HCl kt thc phn ng thu c dung d ch Y v 0,1395m gam kim loi d. Chia dung d ch Y lm hai phn bng nhau. Sc kh H2S n d vo phn I thu c 1,92 gam kt ta. Gi tr ca m gn vi gi tr no di y:

A. 12 B. 13 C. 15 D. 16

Cu 12:X, Y, Z l ba hidrocacbon mch h c cng CTGN theo th t tng dn v s nguyn t C, trong phn t C chim 92,31% v khi lng v MX + MZ = 2MY. t chy 0,01 mol Z thu c khng qu 2,75 gam CO2. Mt khc, cho 3,12 gam hn hp B tc dng vi lng d dung d ch AgNO3/NH3 thu c ti a m gam kt ta. Gi tr ca m gam l :

A. 13,82 B. 11,68 C. 15,96 D. 7,98

Cu 13: Cho 22,2 gam hn hp A gm kim loi X( ha tr II khng i) v mui nitrat ca n vo bnh kn khng cha khng kh, ri nung bnh nhit cao phn ng xy ra hon, thu c cht rn Y gm kim loi v oxit kim lo i. Chia Y lm 2 phn bng nhau.Phn 1: Phn ng va vi 500ml dung d ch HNO3 0,6M thu c kh NO(sn phm kh duy nht)Phn 2: Tc dng va vi 0,05mol H2SO4 long. % khi lng ca X trong A gn nht vi :

A.40% B.50% C.60% D.65%

Cu 14:X l mt este n chc. Thy phn 0,01 mol este X vi 300 ml NaOH 0,1M n khi phn ng xy ra hon ton thu c dung d ch Y. C cn dung dch Y thu c mt phn hi (ch cha nc) v 2,38 gam rn khan. S cng thc cu to c th c ca este X l:A.1 B.4 C.3 D.2

Cu 15: t chy hon ton 0,2 mol hn hp X gm etyl axetat v metyl acrylat thu c CO2 v H2O trong nCO2-nH2O= 0,08 mol. Nu un 0,2 mol hn hp X trn vi 400 ml dung d ch KOH 0,75M v c cn thu c m gam cht rn khan. Gi tr ca m l:A.26,4 B.26,64 C.20,56 D.26,16

Cu 16: Este X no n chc lu b thu phn mt phn to ra 2 cht hu c Y v Z. Mun trung ho lng axit to ra t 13,92 gam X phi dng 15 ml dung d ch NaOH 0,5 M. x phng ho 11lng este d phi dng thm 225 ml dung d ch NaOH 0,5 M. Nu oxi ho Y s c anehit phn nhnh. Khi ho hi 0,4 gam Z c th tch bng th tch ca 0,2133 gam O2. CTCT este X l:A. CH3COOCH2CH2CH2CH3 B. CH3COOCH2CH(CH3)2

C. CH3COOCH(CH3)CH2CH3 D. C2H5COOCH2CH(CH3)2

Cu 17:Hn hp X gm m gam gm mantoz v tinh bt. Chia X lm hai phn bng nhau.- Phn 1: Ho tan trong nc d, lc ly dung d ch ri cho phn ng ht vi AgNO3/NH3 d thu c 0,03 mol Ag.- Phn 2: un nng vi dung d ch H2SO4 long thc hin phn ng thy phn. Hn hp sau phn ng c trung ho bi dung d ch NaOH sau cho ton b sn phm thu c tc dng ht vi AgNO3/NH3 d thu c 0,192 mol Ag. Gi tr ca m l. Bit hi u sut thy phn t 60%.

m = 45,9 gam B.m = 35,553 gam C. m = 49,14 gam D. m = 52,38

Cu 18: Nhin liu rn dng cho tn la tng tc ca tu v tr con thoi l mt hn hp amoni perclorat (NH4ClO4) v bt nhm. Khi c t n nhit trn 200oC, amoni perclorat n theo phng trnh ha hc: 2NH4ClO4--->N2 + Cl2 + 2O2 + 4H2O .Mi ln phng tu con thoi tiu tn 750 tn amoni perclorat. Gii s tt c lng oxi sinh ra tc dng vi bt nhm. Khi lng bt nhm oxit sinh ra gn nht vi

A. 203 tn B. 230 tn C. 434 tn D. 343 tn

Cu 19: Hn hp M gm mt axit cacboxylic X no, hai chc v mt axit cacboxylic Y n chc khng no, c cha mt lin kt i (C=C) u mch h. Cho m gam hn hp M tc dng vi Na (d) thu c 4,704 lt kh H2 (ktc). Mt khc t chy hon ton m gam hn hp M cn dng va 17,472 lt kh O2 (ktc), thu c 20,16 lt kh CO2 (ktc). Phn trm khi lng axit cacboxylic X trong hn hp M l

A. 50,94%. B. 49,06%. C. 42,45%. D. 57,55%.

Cu 20:Mt hn hp X gm 2 mui sunfit v hirosunfit ca cng mt kim loi kimThc hin ba th nghim sau:Th nghim 1: Cho 21,800 gam X tc dng vi dung dch H2SO4 long d.Sau phn ng thu c V lt kh A.Bit V lt kh A lm mt mu va 400 ml dung d ch KMnO4 0,15M.Th nghim 2: 54,500 gam X cng tc dng va vi 100ml dung d ch NaOH 1,25M. Th nghim 3: Cho V lt kh A hp th vo 250 gam dung dch Ba(OH)2 6,84% .Sau phn ng thu c dung dch B.Kim lo i kim v nng phn trm ca dung dch B :

Na v 4,603% B.Na v 9,206% C. K v 6,010% D.K v 9,206%

Cu 21:Hn hp A gm Fe2O3, CuO, Fe3O4 v FeS2 ngi ta cho ftu gam A vo bnh kn cha 1,875 mol kh O2 (d).Nung nng bnh cho t i khi cc phn ng xy ra hon ton ri a bnh v iu kin ban u thy p sut gi m 10% so vi lc trc khi nung.Mt khc,cho ftu gam A vo H2SO4 c,nng d thu c 35,28 lt kh SO2 (ktc) v dung dch B cha 155/69ftu(gam) mui.Bit trong A oxi chim 19,324% v khi lng.Gi tr ca ftu gn nht vi :

A.81 B.82 C.83 D.84

Cu 22: Cho Fe tc dng ht vi dung d ch H2SO4 c nng thu c kh SO2 (sn phm kh duy nht) v dung d ch X cha 8,28 gam mui. Cho Ba(OH)2 d vo X th thu c 18,54 gam kt ta. S mol H2SO4 phn ng gn nht vi :

A. 0,15 B. 0,10 C. 0,20 D. 0,30

Cu 23: Cho hn hp X gm 0,15 mol P2O5, 0,15 mol K2O, 0,1 mol Na2O vo nc d thu c dung dch Y cha m (gam) mui.Gi tr ca m l :A.45,2 B.43,5 C.34,5 D.35,4

Cu 24: Ha tan 5,64 gam Cu(NO3)2 v 1,7 gam AgNO3 vo nc thu c dung dch X. Cho 1,57 gam hn hp Y gm bt Zn v Al vo X ri khuy u. Sau khi phn ng hon ton thu c cht rn E v dung dch D ch cha 2 mui. Ngm E trong dung d ch H2SO4 long khng c kh gii phng. % theo khi lng ca Zn trong hn hp Y l:

A. 41,40% B.82,80% C.62,10% D.20,70%.

Cu 25:Thi hn hp kh CO v H2 qua m gam hn hp X gm Fe2O3 ,CuO v Fe3O4 c t l mol 1:2:3.Sau phn ng thu c 142,8 gam cht rn Y . Ha tan Y trong dd HNO3 long d thu c 0,55 mol kh NO (spkdn) v dung dch Z.C cn Z thu c m gam cht rn khan.Gi tr ca m vi :

A.511 B.412 C. 455 D.600

....................Ht ................

P N S 1:

CDBAD

CBCDA

BACBD

BCDBC

CCABC

luyn thi s 2


Cu 1:Hn hp X gm mt s amino axit (ch cha nhm chc COOH v NH2 trong phn t), trong t l mO: mN = 16:7. tc dng va vi 10,36 gam hn hp X cn va ng 120 ml dung dch HCl 1M. Mt khc cho 10,36 gam hn hp X tc dng vi 150 ml dung dch NaOH 1M ri c cn thu c m gam rn. Gi tr ca m l

A. 14,20.

B. 16,36. C. 14,56.

D. 13,84.Cu 2: Kt lun no sau y ng?

A. Trong cng nghip, ngi ta oxi ha CH3OH c xc tc iu ch HCHO.

B. Nng glucoz trong mu ngi hu nh khng i khong 0,1%.

C. Nhng giy qu vo dung dch anilin, mu qu tm chuyn thnh xanh.

D. Poli (etylen terephtalat) c iu ch t phn ng trng hp.Cu 3:Cho m gam hn hp X gm cc mui cacbonat ca kim loi kim v kim th tc dng vi mt lng d dung dch HCl thu c dung dch Y. C cn dung dch Y ri tin hnh in phn nng chy thu c 3,136 lt kh (ktc) thot ra anot v 5,8 gam kim loi catot. Cc phn ng xy ra hon ton. Gi tr ca m lA. 14,20.

B. 15,74.

C. 12,84.

D. 17,12.

Cu 4:C cc iu ch sau:

(1) Cho dung dch HCl tc dng vi vi sn xut CO2. (2) Nhit phn KMnO4, sn xut oxi.

(3) Chng ct phn on khng kh lng, sn xut N2. (4) Dng NH3 sn xut HNO3.

(5) Nung qung photphorit vi ct v than cc, sn xut P. (6) Dng N2 v H2 sn xut NH3.

S iu ch c dng trong cng nghip l

A. 3.

B. 4.

C. 5.

D. 6.

Cu 5: un 7,36 gam ancol A vi H2SO4 c 1700C thu c 2,688 lt olefin (ktc) vi hiu sut 75%. Cho 0,1 mol amin no B phn ng ti a vi 0,2 mol HCl thu c 11,9 gam mui. t chy m gam hn hp X gm A v B bng mt lng oxi va ri dn ton b sn phm chy vo bnh cha 100 gam dung dch H2SO4 c 81,34%, sau khi hi H2O c hp th hon ton thy nng H2SO4 lc by gi l 70%. Bit CO2 v N2 khng b nc hp th. Gi tr m gn gi tr no nht sau y?

A. 12.

B. 13.

C. 15.

D. 14.

Cu 6:Este mch h X (C4H6O2) c x cng thc cu to thy phn trong mi trng kim to ra mui v ancol. Ancol Y (C4H10O2) c y cng thc cu to ha tan c Cu(OH)2 nhit thng.

A. x y = 1.

B. x y = 0.

C. y x = 1.

D. x y = 2.

Cu 7:Ha tan ht 20 gam hn hp X gm Cu v cc oxit st (trong hn hp X oxi chim 16,8% v khi lng) cn va ng dung dch hn hp A cha b mol HCl v 0,2 mol HNO3 thu c 1,344 lt NO (ktc) l sn phm kh duy nht v dung dch Y. Cho dung dch Y tc dng vi mt lng dung dch AgNO3 va thu c m gam kt ta v dung dch Z. Cho dung dch Z tc dng vi mt lng d dung dch NaOH, lc kt ta, nung n khi lng khng i thu c 22,4 gam cht rn. Cc phn ng xy ra hon ton. Gi tr ca m l :A. 70,33.

B. 76,81.

C. 83,29.

D. 78,97.

Cu 8: C cc kt qu so snh sau:

(1) Tnh dn in: Cu > Au.

(2) Tnh oxi ha: Cu2+ > Ag+.

(3) Nhit nng chy: Na > K.

(4) Tnh axit: H2CO3 > H2SiO3.

(5) cng: Cr > Fe.

(6) m in: > .

S kt qu so snh ng l

A. 6.

B. 5.

C. 4.

D. 3.

Cu 9: Hn hp X gm ancol metylic, ancol etylic, ancol anlylic v etylen glicol trong oxi chim 37,5% v khi lng c chia thnh hai phn bng nhau. Cho phn mt tc dng vi Na d thu c 1,344 lt H2 (ktc). Oxi ha phn hai bng CuO ri cho ton b sn phm hi to thnh tc dng vi mt lng d dung dch AgNO3/NH3 thu c 30,24 gam Ag. Cc phn ng xy ra hon ton. Thnh phn phn trm khi lng ca ancol metylic trong hn hp X l

A. 12,50%.

B. 37,50%.

C. 18,75%.

D. 31,25%.Cu 10: C cc pht biu sau v 4 cht hu c: Tristearin, phenol, Ala-Gly v glucoz:

(1) Tt c 4 cht u trng thi rn trong iu kin thng.(2) C 2 cht tham gia c phn ng thy phn.

(3) C 2 cht tham gia c phn ng trng gng.

(4) C 3 cht lm mt mu nc brom.

S pht biu ng l

A. 4.

B. 3.

C. 1.

D. 2.

Cu 11: Ha tan ht m gam tinh th FeSO4.7H2O vo nc thu c 500 ml dung dch A. Chun 250 ml dung dch A cn va ng 16 ml dung dch KMnO4 0,5M. Gi tr ca m l

A. 12,16.

B. 6,08.

C. 11,12.

D. 22,24.

Cu 12: Nguyn t ca nguyn t X c tng cng 11 electron trn phn lp p. Nguyn t ca nguyn t Y c tng cng 5 electron trn phn lp s. Kt lun no sau y ng?A. Hp cht to bi X v Y l hp cht ion.

B. X c m in b hn so vi Y.

C. X v Y thuc cng 1 nhm A.

D. Bn knh nguyn t ca X ln hn so vi Y.

Cu 13: Thy phn ht m gam hn hp X gm mt s este c to bi axit n chc v ancol n chc bng mt lng dung dch NaOH va ri c cn thu c a gam mui v b gam hn hp ancol. t chy a gam hn hp mui thu c hn hp kh Y v 7,42 gam Na2CO3. Cho ton b hn hp kh Y sinh ra qua bnh ng dung dch Ca(OH)2 d thu c 23 gam kt ta ng thi thy khi lng bnh tng 13,18 gam so vi ban u. un b gam hn hp ancol sinh ra vi H2SO4 c 1400C thu c 4,34 gam hn hp cc ete. Cc phn ng xy ra hon ton. Gi tr m gn gi tr no nht sau y?

A. 10.

B. 11.

C. 13.

D. 12.

Cu 14: Khi ni v tetrapeptit X (Gly-Gly-Ala-Ala), kt lun no sau y khng ng?

A. X tham gia c phn ng biure to ra phc mu tm.B. X c cha 3 lin kt peptit.

C. X c u N l alanin v u C l glyxin.

D. X tham gia c phn ng thy phn.

Cu 15: th biu din s ph thuc ca khi lng Mg vo dung dch hn hp X cha a mol Cu(NO3)2 v b mol HCl khi nhng thanh Mg c khi lng m gam vo dung dch hn hp X c biu din nh hnh v di y.

Sau khi phn ng xy ra hon ton rt thanh Mg ra, thu c NO l sn phm kh duy nht ca . T l a:b l

A. 1:8.

B. 1:6.

C. 1:10.

D. 1:12

Cu 16: C cc kt lun sau v cc kim loi kim:

(1) C mng tinh th lp phng tm khi.

(2) C mu trng bc v c nh kim, dn in tt.

(3) Tt c u n khi tip xc vi axit.

(4) Tt c u tc dng vi nc nhit thng.

S kt lun ng l

A. 1.

B. 4.

C. 3.

D. 2.

Cu 17: Thc hin phn ng hiro ha (tch mt phn t hiro) etan thu c hn hp kh A. Dn ton b hn hp kh A i rt chm qua bnh ng 200 ml dung dch KMnO4, sau khi phn ng xy ra hon ton thu c 2,24 lt hn hp kh B (ktc) c t khi hi i vi H2 l 6,6 ng thi thy nng dung dch KMnO4 cn li lc by gi l 0,4M. Nng dung dch KMnO4 ban u l

A. 0,60M.

B. 0,55M.

C. 0,85M.

D. 0,10.

Cu 18: Kt lun no sau y ng?

A. Tristearin phn ng c vi H2 (Ni, t0).

B. Toluen lm mt mu dung dch Br2.

C. CH3COOH tan trong nc km hn so vi HCOOCH3.D. Anlen l ng phn ca propin.

Cu 19: Ha tan ht m gam hn hp X gm Mg, MgO, Mg(OH)2 v MgCO3 bng mt lng dung dch HCl 20% va thu c 2,72 gam hn hp kh v dung dch Z cha mt cht tan c nng 23,3%. C cn dung dch Z ri tin hnh in phn nng chy thu c 4,8 gam kim loi catot. Cc phn ng xy ra hon ton. Xem nh cc kh sinh ra khng tan trong nc. Gi tr m gn gi tr no nht sau y?

A. 10.

B. 9.

C. 12.

D. 11.Cu 20: Khi ni v NaOH v Na2CO3, kt lun no sau y khng ng?

A. Cng lm mm nc cng vnh cu.

B. Cng lm qu tm ha xanh.

C. Cng phn ng vi dung dch HCl.

D. Cng phn ng vi dung dch Ba(HCO3)2.

Cu 21: Trng hp no sau y khng thu c kim loi t do sau khi kt thc th nghim?

A. Cho dung dch Fe(NO3)2 tc dng vi dung dch AgNO3.B. Nhit phn ht mt lng AgNO3.

C. Cho Fe3O4 tc dng vi mt lng H2 d nung nng.

D. Cho K tc dng vi dung dch CuSO4 d.Cu 22: Cho cc cht sau: Glucoz, metylamin, axit fomic v phenol. Cht t tan trong nc nht trong bn cht ny l

A. metylamin.

B. glucoz.

C. axit fomic.

D. phenol.

Cu 23: Nh 220 ml dung dch NaOH 2M vo 100 ml dung dch hn hp A cha AlCl3 0,6M v FeCl2 0,8M khuy u, lc kt ta nung trong khng kh n khi lng khng i thu c m gam cht rn. Cc phn ng xy ra hon ton. Gi tr ca m l

A. 8,44.

B. 8,00.

C. 6,40.

D. 7,42.

Cu 24: Chia 11,52 gam hn hp X gm axit axetic v ancol etylic thnh hai phn bng nhau. Cho phn mt tc dng vi Na d thu c 1,232 lt H2 (ktc). un phn hai vi H2SO4 c thu c m gam este vi hiu sut 80%. Gi tr ca m l A. 3,520.

B. 4,400.

C. 4,224.

D. 5,280.

Cu 25: Thy phn 12,64 gam hn hp X gm hai este A v B ch cha mt loi nhm chc (MA < MB) cn va ng 200 ml dung dch NaOH 1M ri c cn thu c mui ca mt axit hu c D v hn hp X gm hai ancol no, n chc ng ng k tip. Cho ton b lng ancol ny tc dng vi 6,9 gam Na thu c 13,94 gam cht rn. Cc phn ng xy ra hon ton. Chn kt lun ng trong cc kt lun sau:

A. T l mol gia A v B trong hn hp X l 1:3. B. T l mol gia A v B trong hn hp X l 3:1.

C. D c thnh phn phn trm khi lng C l 26,67%. D. D c thnh phn phn trm khi lng C l 26,08%.

Cu 26: Kt lun no sau y khng ng?

A. Phenol v triolein cng tc dng c vi dung dch NaOH v dung dch Br2.

B. T visco, t xenluloz axetat l t thin nhin.

C. Hiro ha hon ton hn hp buta-1,3-ien, but-1-in v vinylaxetilen thu c mt hirocacbon duy nht.

D. Dng Cu(OH)2 nhit thng v dung dch AgNO3/NH3, chng minh glucoz l hp cht hu c tp chc.

Cu 27: Nhit phn mt lng natri icromat vi hiu sut 80% thu c 1,344 lt kh (ktc) v cht rn A. Cho ton b cht rn A tc dng vi mt lng d dung dch Ba(OH)2 long n khi phn ng xy ra hon ton thu c m gam kt ta. Gi tr ca m l

A. 36,44.

B. 30,36.

C. 50,60.

D. 31,38.

Cu 28: Hai mui no sau y c s dng nhiu nht lm phn kali?

A. KNO3, KCl.

B. KNO3, K2SO4.

C. KCl, K2SO4.

D. KCl, K3PO4.

Cu 29: Cho m gam hn hp X gm Ba, Al v Cu tc dng vi mt lng nc d thu c 4,704 lt H2 (ktc), dung dch Y v cht rn Z. Sc kh CO2 t t cho n d vo dung dch Y, lc thu c 7,8 gam kt ta. Ha tan ton b cht rn Z cn va ng 100 ml dung dch hn hp FeCl3 1M v Fe2(SO4)3 0,8M. Cc phn ng xy ra hon ton. Gi tr ca m l

A. 19,24.

B. 16,68.

C. 22,44.

D. 19,88.

Cu 30: Kho st tinh bt v xenluloz qua cc tnh cht sau:

(1) Cng thc chung Cn(H2O)m.

(2) L cht rn khng tan trong nc.

(3) Tan trong nc Svayde.

(4) Gm nhiu mt xch (-glucoz lin kt vi nhau.

(5) Sn xut glucoz.

(6) Phn ng vi Cu(OH)2 nhit thng.

(7) Phn ng mu vi iot.

(8) Thy phn.

Trong cc tnh cht ny

A. Tinh bt c 6 tnh cht v xenluloz c 5 tnh cht.

B. Tinh bt c 6 tnh cht v xenluloz c 6 tnh cht.

C. Tinh bt c 5 tnh cht v xenluloz c 5 tnh cht.

D. Tinh bt c 5 tnh cht v xenluloz c 6 tnh cht.

Cu 31: Chia 42,28 gam tetrapeptit X c cu to bi cc (-amino axit no cha 1 nhm (COOH v 1 nhm (NH2 thnh hai phn bng nhau. Thy phn phn mt bng mt lng dung dch NaOH va thu c 31,08 gam hn hp mui. Thy phn phn hai bng mt lng dung dch HCl va thu c m gam hn hp mui. Cc phn ng xy ra hon ton. Gi tr ca m l

A. 31,36.

B. 36,40.

C. 35,14.

D. 35,68.

Cu 32: Cho cn bng sau trong bnh kn: 2NO2 (k) N2O4 (k). (H < 0. Bit NO2 c mu nu v N2O4 khng mu. Mu ca hn hp nht dn khi:

A. Nhng bnh vo nc .

B. Nhng bnh vo nc si.

C. Tng nng N2O4.

D. Gim p sut ca h.

Cu 33: iu no sau y khng ng khi ni v cht bo?

A. Khng tan trong nc, nh hn nc nhng tan nhiu trong benzen, hexan, clorofom,

B. Tham gia phn ng thy phn trong mi trng axit, phn ng x phng ha v phn ng gc hirocacbon.

C. trng thi lng hoc rn trong iu kin thng.

D. Du n v m bi trn c cng thnh phn nguyn t.

Cu 34: Chia mt lng xenluloz thnh hai phn bng nhau. Cho phn mt tc dng vi mt lng d dung dch hn hp HNO3/H2SO4, un nng, tch thu c 35,64 kg xenluloz trinitrat vi hiu sut 75%. Thy phn phn hai vi hiu sut 80%, trung ha dung dch sau thy phn ri cho ton b lng sn phm sinh ra tc dng vi mt lng H2 d (Ni, t0) n khi phn ng xy ra hon ton thu c m kg sobitol. Gi tr ca m l :A. 21,840.

B. 17,472.

C. 23,296.

D. 29,120.Cu 35: Kt lun no sau y khng ng khi ni v CrO3 ?

A. Bc chy khi tip xc vi C, S, P v C2H5OH.

B. Tan c trong nc.

C. L oxit baz.

D. L cht rn mu thm.

Cu 36: Cho 9,2 gam hn hp X gm Mg, Fe v Cu tc dng vi 130 ml dung dch Cu(NO3)2 1M thu c 12,48 gam cht rn Y v dung dch Z. Cho ton b cht rn Y tc dng vi mt lng d dung dch HCl thu c 0,896 lt H2 (ktc). Cho dung dch Z tc dng vi NaOH d, lc kt ta nung trong khng kh n khi lng khng i thu c m gam cht rn. Cc phn ng xy ra hon ton. Gi tr ca m l A. 7,60.

B. 7,12.

C. 10,80.

D. 8,00.

Cu 37: Kt lun no sau y khng ng?

A. Phenol v alanin khng lm i mu qu tm.

B. Tinh bt v xenluloz thuc nhm polisaccarit.

C. Isoamyl axetat c mi da.

D. T nilon-6,6 c cu to bi 4 nguyn t ha hc.

Cu 38: Chia hn hp X gm phenol v axit axetic thnh hai phn bng nhau. Trung ha phn mt cn va ng 120 ml dung dch NaOH 1M. Phn hai tc dng vi mt lng dung dch Br2 d thu c 13,24 gam kt ta. T l mol gia phenol v axit axetic trong hn hp X l :A. 1:2.

B. 2:1.

C. 1:3.

D. 3:1.Cu 39: Khi ni v Al v Cr, kt lun no sau y ng?

A. Phn ng vi dung dch H2SO4 long theo cng t l v s mol.

B. Cng phn ng vi dung dch NaOH c, nng.

C. Phn ng vi bt S, nung nng theo cng t l v s mol.

D. Cng phn ng vi Cl2 nhit thng.

Cu 40: Phn ng no sau y ch to ra mui st (II)?

A. Cho Fe tc dng vi dung dch HNO3 d.

B. Cho Fe tc dng vi dung dch H2SO4 c, nng d.

C. Cho Fe tc dng vi Cl2, nung nng.

D. Cho Fe tc dng vi bt S, nung nng.

Cu 41: Cho hn hp X gm mui A ( C5H16O3N2) v B ( C4H12O4N2) tc dng vi mt lng dung dch NaOH va , un nng n khi phn ng xy ra hon ton ri c cn thu c m gam hn hp Y gm hai mui D v E (MD < ME) v 2,24 lt hn hp Z gm hai amin no, n chc ng ng k tip c t khi hi i vi H2 l 18,3. Khi lng ca mui E trong hn hp Y l

A. 2,12 gam.

B. 3,18 gam.

C. 2,68 gam.

D. 4,02 gam.

Cu 42: Hirat ha propen thu c sn phm hu c X. Cho toluen tc dng vi Br2 trong iu kin c bt Fe thu c sn phm hu c Y. X v Y cng l phm chnh, X v Y theo th t l

A. Propan-1-ol v 2-bromtoluen.

B. Propan-2-ol v 2-bromtoluen.

C. Propan-1-ol v 3-bromtoluen.

D. Propan-2-ol v 3-bromtoluen.

Cu 43:Ha tan ht m gam hn hp X gm Na, Na2O, K, K2O, Ba v BaO, trong oxi chim 8,75% v khi lng vo nc thu c 400 ml dung dch Y v 1,568 lt H2 (ktc). Trn 200 ml dung dch Y vi 200 ml dung dch hn hp gm HCl 0,2M v H2SO4 0,15M thu c 400 ml dung dch c pH = 13. Cc phn ng xy ra hon ton. Gi tr m gn gi tr no nht sau y?

A. 12.

B. 13.

C. 14.

D. 15.

Cu 44: Cho dung dch NaOH t t cho n d vo dung dch X, thy kt ta xut hin, kt ta khng tan. Cho dung dch Y t t cho n d vo dung dch Ba(AlO2)2, thy kt ta xut hin v ch tan i mt phn. Dung dch X v Y theo th t lA. CrCl2 v HCl.

B. CrCl2 v H2SO4.

C. CrCl3 v HCl.

D. CrCl3 v H2SO4.

Cu 45: C cc pht biu sau:

(1) C 6 nguyn t cacbon v 6 nguyn t hiro trong phn t benzen cng nm trong mt mt phng.

(2) Nhng si dy ng hnh l xo c t rt nng vo etanol thy mu ca dy ng chuyn t en sang .

(3) Fructoz c nhiu trong qu ngt nh da, xoi,...c bit trong mt ong c ti 40% fructoz.

(4) Xenluloz l nguyn liu sn xut t nhn to nh t visco, t xenluloz axetat.

(5) PE l cht do mm, nng chy trn 1100C c dng nhiu lm mng mng, vt liu cch in, bnh cha,...

(6) PVC l cht rn v nh hnh, cch in tt, bn vi axit c dng lm ng dn nc, vi che ma,...

S pht biu ng l

A. 5.

B. 6.

C. 4.

D. 3.

Cu 46: Chia 0,15 mol hn hp X gm mt s cht hu c (bn c trong sch gio khoa c bn), trong phn t cng cha C, H v O thnh ba phn bng nhau. t chy phn mt bng mt lng oxi va ri hp th ton b sn phm chy vo bnh ng nc vi trong d thu c 5 gam kt ta. Phn hai tc dng vi mt lng d dung dch AgNO3 trong NH3 thu c 8,64 gam Ag. Phn ba tc dng vi mt lng Na va thu c 0,448 lt H2 (ktc). Cc phn ng xy ra hon ton. Khi lng ca 0,15 mol hn hp X l

A. 6,48 gam.

B. 5,58 gam.

D. 5,52 gam.

D. 6,00 gam.Cu 47: Chia hn hp X gm Al v Fe thnh hai phn. Phn mt tc dng vi mt lng d dung dch AgNO3 thu c 25,92 gam cht rn. Phn hai tan va ht trong 352 ml dung dch HNO3 2,5M thu c dung dch Y cha 53,4 gam hn hp mui v 2,24 lt hn hp kh Z gm NO, N2O (ktc) c t khi hi i vi H2 l 17,1. Cho dung dch Y tc dng vi mt lng dung dch NH3 d, lc thu c m gam kt ta. Cc phn ng xy ra hon ton. Gi tr m gn gi tr no nht sau y?

A. 5,95.

B. 20,00.

C. 20,45.

D. 17,35.

Cu 48: C cc ng dng sau:

(1) Corinon dng tinh th trong sut, khng mu, rt rn, c dng ch to mi, giy nhm,...

(2) Trong cng nghip ht nhn, flo c dng lm giu .

(3) Hn hp tecmit (Al, Fe2O3) c dng hn gn ng ray.

(4) Nit lng c dng bo qun mu v cc mu vt sinh hc.

(5) Hp kim ferosilic c dng ch to thp chu axit.

(6) Hp kim Li-Al siu nh, c dng trong k thut chn khng.

(7) Cr2O3 c dng to mu lc cho s, thy tinh.

(8) Gang trng c dng luyn thp.

S ng dng ng l

A. 6.

B. 5.

C. 7.

D. 8.

Cu 49: Nh rt t t dung dch hn hp X cha a mol HCl, b mol HNO3 v 0,05 mol H2SO4 vo dung dch cha 0,15 mol hn hp Y cha Na2CO3, K2CO3, NaHCO3 v KHCO3, khuy u thu c V lt kh (ktc) v dung dch X. Cho ton b dung dch X tc dng vi mt lng d dung dch Ba(OH)2 thu c 29,38 gam kt ta. Cc phn ng xy ra hon ton. Gi tr ca V lA. 1,568.

B. 1,344.

C. 1,792.

D. 1,120.

Cu 50: Thy phn m gam hn hp X gm mt tetrapeptit A v mt pentapeptit B (A v B cha ng thi glyxin v alanin trong phn t) bng mt lng dung dch NaOH va ri c cn thu c ( m + 15,8) gam hn hp mui. t chy ton b lng mui sinh ra bng mt lng oxi va thu c Na2CO3 v hn hp hi Y gm CO2, H2O v N2. Dn ton b hn hp hi Y i rt chm qua bnh ng dung dch NaOH c d thy khi lng bnh tng thm 56,04 gam so vi ban u v c 4,928 lt mt kh duy nht (ktc) thot ra khi bnh. Xem nh N2 khng b nc hp th, cc phn ng xy ra hon ton. Thnh phn phn trm khi lng ca A trong hn hp X l :A. 55,92%.

B. 35,37%.

C. 30,95%.

D. 53,06%.

Phiu p n trc nghim

1A2B3A4B5D6C7D8B9A10D

11D12A13D14C15C16B17A18D19D20A

21D22D23C24A25C26B27A28C29A30A

31C32A33D34C35C36A37C38A39C40D

41D42B43B44B45B46B47B48D49B50D

p n s 2:

luyn thi s 3


Cu 1: Hai este X v Y c cng CTPT l C8H8O2 v cha vng benzen. Cho 6,8 gam hn hp gm X v Y tcdng vi NaOH d thy nNaOH phn ng = 0,06 mol, thu c dung dch Z cha 4,7 gam ba mui. Tm khi lng mui ca axit cacboxylic c phn t khi ln hn trong Z:A. 0,82 B. 0,92 C. 0,93 D. 0,95

Cu 2: Hn hp M gm axit cacboxylic X, ancol no Y (u n chc, nX=2nY) v este Z c to nn t X v Y. Cho mt lng M tc dng va vi dung dch cha 0,2 mol NaOH, to ra 16,4 gam mui v 8,05 gam ancol. S cht tha mn tnh cht ca Z l:A. 4 B. 6 C. 7 D. 8

Cu 3: Hn hp M gm axit khng no, n chc, h X (c 1 lin i gc hirocacbon), 1 ancol no, n chc,mch h Y v este Z to bi X v Y. t chy hon ton 7,93 gam hn hp M, thu c 0,335 mol CO2 v 0,235mol H2O. Trong cc nhn nh sau, c bao nhiu nhn nh ng khi ni v X:

a) X c 4 nguyn t H b) X c 3 nguyn t C

c) X tc dng vi brom theo t l 1:1 d) X c phn ng trng gng

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

Cu 4: un hn hp etylen glicol v axit cacboxylic X (phn t ch c nhm COOH) vi xctc H2SO4 c, thu c hn hp sn phm hu c, trong c cht hu c Y mch h. t chy hon ton 3,95 gam Y cn 4,00 gam O2, thu c CO2 v H2O theo t l mol tng ng 2:1. Bit Y c cng thc phn t trng vi cng thc n gin nht, Y phn ng c vi NaOH theo t l mol tng ng 1:2. Pht biu no sau y sai?A. Tng s nguyn t hiro trong hai phn t X, Y bng 8. B. Y khng c phn ng trng bc.

C. X c ng phn hnh hc.

D. Y tham gia c phn ng cng vi Br2 theo t l mol tng ng 1:2.

Cu 5: Cho hn hp X gm 1 este n chc A v 1 ancol bn B, u mch h v c cng s nguyn t cacbon (nB=2nA) . t chy hon ton m gam X, thu c 10,08 lt CO2 (ktc) v 7,2 gam H2O. Mt khc, cho m gam X tc dng vi NaOH d thu c 0,1 mol ancol. Gi tr m l:A. 9,4 B. 9,7 C. 9,0 D. 8,5

Cu 6: t chy hon ton 29,064 gam hn hp gm anehit oxalic, axit acylic, vinyl axetat v metyl metacrylat ri cho ton b sn phm chy vo bnh 1 ng dung dch H2SO4 c, bnh 2 ng dung dch Ba(OH)2 d thy khi lng bnh 1 tng 13,608 gam, bnh 2 xut hin m gam kt ta. Gi tr ca m l :

A. 318,549 B. 231,672 C. 220,64 D. 232,46

Cu 7: Hn hp X gm 3 este n chc, to thnh t cng mt ancol Y vi 3 axit cacboxylic (phn t ch c nhm COOH); trong , c hai axit no l ng ng k tip nhau v mt axit khng no (c ng phn hnh hc, cha mt lin kt i C=C trong phn t). Thy phn hon ton 5,88 gam X bng dung dch NaOH,thu c hn hp mui v m gam ancol Y. Cho m gam Y vo bnh ng Na d, sau phn ng thu c 896 ml kh(ktc) v khi lng bnh tng 2,48 gam. Mt khc, nu t chy hon ton 5,88 gam X th thu c CO2 v 3,96gam H2O. Phn trm khi lng ca este khng no trong X l:A. 40,82% B. 29,25% C. 34,01% D. 38,76%

Cu 8: Este A to bi 2 axit cacboxylic X, Y u mch h khng phn nhnh v ancol Z. X phng ha hon ton a gam A bng 140 ml dung dch NaOH x M, cn phi dng 80 ml dung dch HCl 0,25M trung ha va lng NaOH d thu c dung dch B. C cn dung dch B thu c b gam hn hp mui khan N. Nung N trong NaOH khan d c thm CaO thu c cht rn R v hn hp kh K gm 2 hirocacbon c t khi so vi oxi l 0,625. Dn K li qua nc brom thy c 5,376 lt 1 kh thot ra, cho ton b R tc dng vi axit H2SO4 long d thy c 8,064 lt kh CO2 sinh ra. Bit rng t chy hon ton 2,76 gam Z cn dng 2,352 lt O2 sinh ra CO2 v H2O c t l khi lng l 11: 6. Gi tr a gn nht vi:A. 26 B. 27 C. 28 D. 29

Cu 9: Hn hp P gm ancol A, axit cacboxylic B (u no, n chc, mch h) v este C to ra t A v B. t chy hon ton m gam P cn dng va 0,18 mol O2 sinh ra 0,14 mol CO2. Cho m gam P trn vo 500 ml dd NaOH 0,1M un nng, sau khi kt thc cc phn ng c dung dch Q. C cn dung dch Q cn li 3,68 gam cht rn khan. Ngi ta cho thm bt CaO v 0,48 gam NaOH vo 3,68 gam cht rn khan trn ri nung trong bnh kn (chn khng). Sau khi phn ng xy ra hon ton c a gam kh. Gi tr ca a gn nht vi :

A. 0,85 B. 1,25 C. 1,45 D. 1,05

Cu 10: Cho X, Y l hai axit cacboxylic n chc, no mch h (MX < My); T l este hai chc to bi X, Y v mt ancol mch h Z. t chy hon ton 8,58 gam hn hp E gm X, Y, T bng mt lng va O2, thu c 7,168 lt CO2 v 5,22 gam nc. Mt khc 8,58 gam E tc dng vi dung dch AgNO3/NH3 d thu c 17,28 gam Ag. Khi lng cht rn khan thu c khi cho cng lng E trn tc dng vi 150 ml dd NaOH 1M l :

A. 12,08 B. 11,04 C. 9,06 D. 10,1

Cu 11: Hn hp A gm mt axit n chc, mt ancol n chc v 1 este n chc (cc cht trong A u c nhiu hn 1 C trong phn t). t chy hon ton m gam A ri hp th sn phm chy vo bnh ng dung dch Ca(OH)2 d thy c 135 gam kt ta xut hin. ng thi khi lng dung dch gim 58,5 gam. Bit s mol ancol trong m gam A l 0,15. Cho Na d vo m gam A thy c 2,8 lt kh (ktc) thot ra. Mt khc m gam A tc dng va dung dch cha 12 gam NaOH. Cho m gam A vo dung dch nc Brom d. Hi s mol Brom phn ng ti a l:A. 0,4 B. 0,6 C. 0,75 D. 0,7

Cu 12: Cho X, Y l hai axit cacboxylic n chc mch h (MX (3)>(4).

B. (3) >(4)>(1)>(2).

C. (3)>(4)>(2)>(1).

D. (4)>(3)>(1)>(2).

Cu 9. Thy phn este X trong mi trng axit, thu c 2 cht hu c Y v Z. Oxi ha Y to ra sn phm l Z. Cht X khng th l:

A. Isopropyl propionat.

B. Etylen glicol oxalat.

C. Etyl axetat.

D. Vinyl axetat.

Cu 10. Cho hnh v m t th nghim iu ch kh Y t dung dch X:

Hnh v trn minh ha phn ng no sau y?

A. C2H5OH C2H4 + H2O.B. NaCl (rn) + H2SO4 (c) NaHSO4 + HCl.C. NH4Cl + NaOH NaCl + NH3 + H2O.D. CH3COONa (rn) + NaOH(rn) CH4 + Na2CO3.Cu 11. Hn hp X gm mt anehit v mt ankin c cng s nguyn t cacbon. t chy hon ton a mol hn hp X thu c 3a mol CO2 v 1,8a mol H2O. Hn hp X c s mol 0,1 tc dng c vi ti a 0,14 mol AgNO3 trong NH3 (iu kin thch hp). S mol ca anehit trong 0,1 mol hn hp X l :

A. 0,02.B. 0,03.C. 0,01.D. 0,04.

Cu 12. trng thi c bn, cu hnh electron lp ngoi cng ca nguyn t X l 3p1. S hiu nguyn t ca nguyn t X l:

A. 12.B. 14C. 11.D. 13.Cu 13. t chy hon ton m gam hn hp X gm hai ancol ng ng k tip, cho sn phm chy qua bnh cha dung dch Ca(OH)2 d thy khi lng bnh tng 19,1 gam v c 25 gam kt ta. Nu oxi ha ht m gam X bng CuO d, ly sn phm thu c cho tc dng vi dung dch AgNO3/ NH3 d, un nng c x gam Ag. Gi tr ca x l ( Coi hiu sut l 100%):

A. 64,8.B. 75,6.C. 43,2.D. 86,4.

Cu 14. Cho 66,2 gam hn hp X gm Fe3O4, Fe(NO3)2, Al tan hon ton trong dung dch cha 3,1 mol KHSO4 long. Sau khi cc phn ng xy ra hon ton, thu c dung dch Y ch cha 466,6 gam mui sunfat trung ha v 10,08 lt (ktc) kh Z gm 2 kh, trong c mt kh ha nu ngoi khng kh. Bit t khi ca Z so vi He l . Phn trm khi lng ca Al trong hn hp gn nht vi gi tr no sau y:

A. 30.B. 15.C. 25.D. 20.

Cu 15. Cht no sau y l amin bc 2?

A. H2N-CH2-NH2.B. (CH3)2CH-NH2.C. CH3-CH2-NH2.D. CH3-NH-CH3.

Cu 16. C cc nhn nh sau:

Protein c phn ng mu biure.

Tt c cc protein u tan trong nc to thnh dung dch keo.

Protein b thy phn nh xc tc axit, baz hoc ezim to thnh cc - amino axit.

ipeptit phn ng vi Cu(OH)2/OH- cho phc cht c mu tm c trng.

Khi nh dung dch HNO3 c vo lng trng trng, thy xut hin kt ta mu vng.

S nhn nh ng l:

A. 5.B. 1C. 3.D. 2.

Cu 17. Cho phn ng: FeO + HNO3 Fe(NO3)3 + NO + H2O

T l s phn t HNO3 ng vai tr l cht oxi ha v mi trng trong phn ngl bao nhiu?

A. 1 : 9.B. 1 : 3.C. 1 : 2.D. 1 : 10.Cu 18. Hn hp E gm peptit X mch h (cu to t Gly, Ala) v este Y (c to ra t phn ng este ha gia axit cacboxylic no, n chc v metanol). t chy hon ton m gam E cn 15,68 lt O2 (ktc). Mt khc, khi thy phn m gam E trong dung dch NaOH va thu c 24,2 gam hn hp mui (trong s mol mui natri ca Gly ln hn s mol mui ca Ala). t chy hon ton lng mui trn cn 20 gam O2, thu c Na2CO3, N2, H2O v 18,7 gam CO2. T l s mol Gly : Ala trong X l:

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

Cu 19. Cc nhn xt sau:

Thnh phn chnh ca phn m ure l (NH2)2CO.

Phn m amoni nn bn cho loi t chua.

Tro thc vt cng l mt loi phn kali v c cha K2CO3.

dinh dng ca phn ln c nh gi bng phn trm khi lng photpho.

NPK l mt loi phn bn hn hp.

Ngi ta dng loi phn bn cha nguyn t kali tng cng sc chng bnh, chng rt v chu hn cho cy.

S nhn xt sai l:

A. 3.B. 1.C. 2.D. 4.Cu 20. Cho cc cht: Cu(NO3)2, AgNO3, Fe(NO3)2, MgCO3, NH4NO3, Ba(HCO3)2 v NH4HCO3 . Nu nung cc cht trn n khi lng khng i trong cc bnh kn khng c khng kh, ri cho nc vo cc bnh. S bnh c th to li cht ban u sau cc th nghim l:

A. 4.

B. 5.

C. 2. D. 3.

Cu 21. Khi t chy hon ton 1,12 lt ankan X thu c 5,60 lt kh CO2. Cc th tch kh c o ktc. Cng thc phn t ca X l trng hp no sau y ?

A. C4H10.B. C5H12.C. C3H8.D. C5H10.

Cu 22. Cho ancol :H3C- CH(CH2 - CH2- CH2 - OH

Tn no di y ng vi ancol trn ?

A. 4-metylpentan-2-ol.B. 2-metylpentan-1-ol.

C. 3-metylhexan-2-ol.D. 4-metylpentan-1-ol.

Cu 23. Cht no sau y trng hp to PE?

A. CHCH.B. CHCl=CHCl.C. CH2=CH2.D. CH2=CHCl.

Cu 24. Trong s cc ngun nng lng: (1)thy in, (2) gi, (3)mt tri, (4) ha thch; Nhng ngun nng lng sch l:

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

Cu 25. S hp cht n chc, l ng phn cu to mch h ca nhau, c cng cng thc phn t C4H8O2 u tc dng vi dung dch NaOH l:

A. 2. B. 6. C. 8. D. 4.

Cu 26. Cho dy cht: Al, Al(OH)3, Al2O3, AlCl3. (NH4)2CO3, CH3COONH4, NaHCO3. S cht c tnh cht lng tnh l:

A. 6.B. 2.C. 5.D. 7.Cu 27. Amino axit X c cng thc (H2N)2C3H5COOH. Cho 0,02 mol X tc dng vi 200 ml dungdch hn hp H2SO4 0,1M v HCl 0,3M, thu c dung dch Y. Cho Y phn ng va vi 400 ml dung dch NaOH 0,1M v KOH 0,2M, thu c dung dch cha m gam mui. Gi tr ca m l:

A. 8,09.B. 10,43.C. 6,38.D. 10,45.Cu 28. Cho s phn ng: NaCl (X) NaHCO3 (Y) NaNO3. X v Y c th l:

A. NaOH v NaClO.

B. Na2CO3 v NaClO.

C. NaClO3 v Na2CO3.

D. NaOH v Na2CO3.

Cu 29. Trong bnh vin, nhiu bnh nhn thng c truyn dch ng b sung nng lng mt cch nhanh nht. Cht trong dch truyn c tc dng trn l:

A. Mantoz.B. Saccaroz.C. Fructoz.D. Glucoz.

Cu 30. t chy hon ton a gam S ri cho sn phm sc qua 200 ml dung dch NaOH bM thu c dung dch X. Chia X lm hai phn bng nhau. Phn 1 cho tc dng vi dung dch CaCl2 d thy xut hin c gam kt ta. Phn 2 tc dng vi dung dch nc vi trong d thy xut hin d gam kt ta. Bit d > c. C bao nhiu kt qu khng chnh xc trong s kt qu sau:

(a) (b) 3,2b < a < 6,4b (c) a > 6,4b (d) a < 3,2b

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

Cu 31. Cho 19,45 gam hn hp X gm Na v Ba vo 75ml dung dch Al2(SO4)3 1M thu c 5,04 lt kh H2 (ktc), dung dch A v m gam kt ta. Gi tr ca m l:

A. 11,7.B. 52,425.C. 35.D. 64,125.

Cu 32. Axit cacboxylic X hai chc (c phn trm khi lng ca oxi nh hn 70%), Y v Z l hai ancol ng ng k tip (My < Mz). t chy hon ton 0,2 mol hn hp X, Y, Z cn va 8,96 l kh O2 (ktc), thu c 7,84 lt kh CO2 (ktc) v 8,1 gam H2O. Phn trm khi lng ca Y trong hn hp trn gn nht vi gi tr no sau y?

A. 29% .B. 12%.C. 25%.D. 15%

Cu 33. bo v ng thp (dn nc, dn du, dn kh t) bng phng php in ha, ngi ta gn vo mt ngoi ca ng thp nhng khi kim loi no?

A. Cu.B. Pb.C. Ag.D. Zn.Cu 34. Cho 12,0 gam axit axetic phn ng vi 6,9 gam etanol (xc tc H2SO4 c, to) thu c m gam este. Bit hiu sut phn ng este ha bng 60%. Gi tr ca m l:

A. 7,8.B. 7,92.C. 9,72.D. 10,56.

Cu 35. 2,52 gam bt st trong khng kh, sau mt thi gian thu c 2,84 gam hn hp X gm Fe, FeO, Fe2O3, Fe3O4. ha tan ht X cn 500 ml dung dch HNO3 a (mol/l), sau phn ng sinh ra 0,56 lt NO (sn phm kh duy nht ktc) v dung dch Y. Gi tr ca a v khi lng cht tan trong Y l:

A. 0,25M v 6,95 gam.B. 0,028M v 9,65 gam.C. 0,28 M v 9,65 gam.D. 0,025M v 6,95 gam.Cu 36. Cho cc dung dch: NaOH, HCl, Br2, C2H5OH. S dung dch trong dy phn ng c vi phenol l:

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

Cu 37. in phn vi in cc tr dung dch cha 0,3 mol AgNO3 vi cng dng in 2,68 A, trong thi gian t (gi) thu c dung dch X . Cho 22,4 gam bt Fe vo dung dch X, thu c kh NO (sn phm kh duy nht ca ) v 34,28 gam cht rn. Cc phn ng xy ra hon ton v hiu sut ca qu trnh in phn l 100%. Gi tr ca t l:

A. 1,25.B. 1,20.C. 1,00.D. 1,40.

Cu 38. Cht no sau y phn ng c vi NaHCO3?

A. Axit benzoic.B. Anehit axetic.C. Phenol.D. Ancol bezylic.

Cu 39. Cho phn ng sau: 2SO2(kh) + O2 (kh) 2SO3 (kh) ; H < 0.

cn bng trn chuyn dch theo chiu thun th: (1) tng tng nhit , (2) tng p sut,

(3) h nhit , (4) dng xc tc l V2O5, (5) gim nng SO3. Bin php ng l:

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

Cu 40. Cho dung dch KOH vo dung dch hn hp gm a mol HCl v b mol CrCl3.

T l a : b l:

A. 2: 3.B. 1 : 2.C. 2 : 1.D. 3: 2.Cu 41. Cho 2,760 gam cht hu c A (cha C,H,O v c 100 < MA< 150) tc dng vi NaOH va , sau lm kh, phn bay hi ch c nc, phn cht rn khan cn li cha hai mui ca natri c khi lng 4,440 gam. Nung nng 2 mui trong oxi d, sau khi phn ng xy ra hon ton thu c 3,180 gam Na2CO3, 2,464 lt CO2 ( ktc) v 0,900 gam nc. Cng thc phn t v s ng phn cu to ca A l:

A. C7H6O3; 3.B. C7H6O3; 2.C. C6H6O3; 2.D. C6H6O3; 3.

Cu 42. nhn bit cc dung dch mui (ng ring bit): Al(NO3)3, (NH4)2SO4, NaNO3, FeCl2, NH4NO3, MgCl2 c th dng:

A. AgNO3.B. BaCl2.C. NaOH.D. Ba(OH)2.

Cu 43. Khng nh no sau y l sai?

A. CaSO4.2H2O c trong t nhin, l thch cao sng.

B. Al(OH)3 l baz lng tnh.

C. Nguyn tc lm mm nc cng l gim nng Ca2+, Mg2+, trong nc.

D. Nc cng lm cho x phng t bt, gim kh nng ty ra ca x phng.

Cu 44. Cho 23,06 gam hn hp hai mui MgCO3 v RCO3 vo dung dch H2SO4 long, thu c 0,896 lt kh CO2 (ktc), cht rn X v dung dch Y cha 2,4 gam mui. Nung X n khi lng khng i, thu c cht rn Z v 2,24 lt kh CO2 (ktc). Khi lng ca Z l:

A. 17,7 gam.B. 15,3 gam.C. 15,5 gam.D. 17,1 gam.

Cu 45. Cho s chuyn ha

C3H6XY ZTE (este 2 chc).

Tn gi ca Y l:

A. Glixerol.B. Propan -2-ol.C. Propan -1,2 iol.D. Propan 1,3 - iol.

Cu 46. Cho s phn ng: X + M + Y

Y + AgNO3 AgCl + ...

X l: A. CO2. B. NH3. C. SO2. D. HCl.

Cu 47. Nguyn t ha hc no sau y thuc nhm halogen?

A. Lu hunh.B. Nit.C. Iot.D. Oxi.Cu 48. Nung nng m gam hn hp X gm bt Al v FexOy trong iu kin khng c khng kh thu c hn hp Y. Nghin nh, trn u hn hp Y ri chia thnh 2 phn: Phn 1 c khi lng 14,49 gam c ha tan ht trong dung dch HNO3 long, d, un nng thu c dung dch Z v 0,165 mol NO ( sn phm kh duy nht ). Phn 2 em tc dng vi dung dch NaOH d, un nng thu c 0,015 mol kh H2 v cn li 2,52 gam cht rn. Cng thc ca oxit st v gi tr ca m ln lt l:

A. Fe2O3 v 28,98.

B. Fe3O4 v 19,32.

C. Fe3O4 v 28,98.

D. FeO v 19,32.

Cu 49. Cho cc phn ng:

(1) C + H2O

(2) H2S + O2

(3) CaOCl2 + HCl c

(4) Al + dung dch NaOH

(5) F2 + H2O

(6) Na2S2O3 + dung dch H2SO4

S phn ng to ra n cht l:

A. 4.B. 6.C. 3.D. 5.Cu 50. Hn hp X gm anehit Y, axit cacboxylic Z v este T (Z v T l ng phn). t chy hon ton 0,2 mol X cn 0,625mol O2, thu c 0,525 mol CO2 v 0,525 mol nc. Cho mt lng Y va bng lng Y c trong 0,2mol X tc dng vi mt lng d dung dch AgNO3 trong NH3, un nng, sau phn ng c m gam Ag (hiu sut phn ng 100%). Gi tr ca m l:

A. 21,6.B. 16,2.C. 32,4.D. 64,8.

----------- HT ----------

CDCAACDBAA

ADBBDCAACA

BDCDBCBDDC

CADBCDBADC

ADBADDCBBB

luyn thi s 5

Bit nguyn t khi cc nguyn t : H = 1; C = 12; N = 14; O = 16; Na = 23; Mg = 24; Al = 27; P = 31; S = 32; Cl = 35,5; K = 39; Ca = 40; Cr = 52; Mn = 55; Fe = 56; Cu = 64; Zn = 65; Br = 80; Ag = 108; Sn = 119; Ba = 137; Pb = 207. Cu 1: Hn hp X gm anehit Y, axit cacboxylic Z, este T. t chy hon ton 0,2 mol X cn 0,625 mol O2, thu c 0,525 mol CO2 v 0,525 mol nc . Cho Y trong 0,2 mol X tc dng vi dung dch AgNO3 d trong NH3, un nng sau phn ng c m gam Ag (hiu sut phn ng 100%). Gi tr ln nht ca m l :A. 32,4g

B. 64,8g C. 16,2g D . 21,6g

Cu 2: Cho m gam hn hp X gm Mg, Al, Fe tc dng hon ton vi dung dch HNO3 d thu c dung dch Y cha m + 109,4 gam mui v V lt (ktc) hn hp kh X c tng khi lng 11,2 gam. Bit rng khi cho NaOH d vo Y un nng nh thy c 1,12 lt kh (ktc) thot ra . Gi tr ln nht ca V c th l:

A.5,6

B. 4,48

C.6 ,72 D. 8,4 Cu 3: Cho m gam dung dch Na2CO3 21,2% vo 120 gam dung dch B gm XCl2 v YCl3 (t l mol 1:2, X v Y l hai kim loi nhm A) thu c dung dch D, kh E v 12 gam kt ta . Tip tc cho 200 gam dung dch AgNO3 40,5% vo dung dch D th thu c dung dch G ch cha mui nitrat, trong nng ca NaNO3 l 9,884%. Bit dung dch D ch cha mt cht tan duy nht. Nng % ca XCl2 l: A. 3,958% B. 7,917% C. 11,125% D. 5,563%

Cu 4: Hn hp kh X gm bn cht hu c: CH2O, C2H6O, C3H4v C4H8; trong s mol C3H4bng s mol C2H6O. t chy hon ton V lt hn hp X cn va 89,6 lt khng kh (gi s khng kh gm 20% O2v 80% N2v th tch). a hn hp sau phn ng v 0oC th c 84,224 lt hn hp kh Y. Cc th tch kh c o ktc . Gi tr ca V l:A. 3,36. B. 4,48. C. 2,24. D. 8,96

Cu 5: Cho m gam Fe vo bnh cha dd gm H2SO4 v HNO3thu c dd X v 2,24 lt kh NO. Thm tip dd H2SO4 d vo bnh thu c 0,896 lt kh NO v dd Y. Bit trong c 2 trng hp NO l sn phm kh duy nht, o iu kin tiu chun . Dung dch Y ha tan va ht 4,16 gam Cu (khng to thnh sn phm kh ca N+5) . Bit cc phn ng u xy ra hon ton. Gi tr ca m l:

A.8,12 B.4,8 C.8,4 D.7,84

Cu 6: Cho hn hp A gm x mol Fe v 0,2x mol Cu tan hon ton trong dung dch cha y mol H2SO4 (t l x : y = 1 : 3), thu c mt sn phm kh duy nht SO2 v dung dch B. S mol kh SO2 thot ra l :

A. x. B. 1,7x. C. 0,5y. D. y.

Cu 7: Ho tan m gam hn hp X gm FeO, Fe(OH)2, FeCO3, Fe3O4(s mol Fe3O4 bng s mol hn hp) bng dung dch HNO3 d thu c 15,68 lt NO v CO2 c t khi hi ca hn hp so vi hiro l 18. C cn dung dch thu c (m + 284,4) gam mui khan. Gi tr ca m lA. 75,6. B. 201,6. C. 151,2 D. 302,4.

Cu 8: Tin hnh ime ha C2H2 sau mt thi gian thu c hn hp X cha hai cht hu c c t khi so vi He l 65/6. Trn V lt X vi 1,5V lt H2 thu c hn hp Y. un nng Y vi bt Ni sau mt thi gian th thu 17,92 lt ( ktc) hn hp Z c t khi so vi Y l 1,875. Cho Z li qua dung dch AgNO3/NH3 d th thyc 0,3 mol AgNO3 phn ng v to ra m gam kt ta, hn hp kh T thot ra c th tch l 12,32 lt ( ktc) v lm mt mu ti a 150 ml dung dch Br2 2M. Phn trm khi lng ca C2Ag2 trong m gam kt ta l :

A. 30,12%. B. 27,27%. C. 32,12%. D. 19,94%.

Cu 9 : Cho m gam hn hp X gm Fe, Fe3O4, FeCO3 t l mol tng ng l 8 : 1 : 2 , tan ht trong dung dch H2SO4 (c/nng). Sau phn ng thu c dung dch Y cha hai mui v 2,6544 lt hn hp kh Z gm CO2 v SO2 (ktc). Bit Y phn ng c vi ti a 0,2m gam Cu. Hp th hon ton Z vo dung dch Ca(OH)2 d th thu c m gam kt ta. Gi tr ca m l : A. 11,82 B. 12,18 C. 18,12 D. 13,82

Cu 10 : Cho hn hp T gm 2 axit a chc A,B v 1 axit n chc C ( s cacbon trong cc cht khng vt qu 4 v chng u mch h, khng phn nhnh ). Chia hn hp thnh 3 phn bng nhau :Phn 1 : Cho tc dng dung dch NaOH d th thy c 1,02 mol NaOH phn ng, Phn 2 : em t chy trong Oxi d th thu c V lt 2 COv 14,04 gam nc.Phn 3 : Cho tc dng vi dung dch AgNO3 d thu c 104,76(g) kt ta.Bit s mol ca 2CO ln hn 2 ln s mol Nc v s mol ca A v B bng nhau.Gi tr V gn nht vi :A. 51 B. 52 C. 53 D. 54

Cu 11: Cho 1 lung kh O2 qua 8,48 gam hn hp X gm Fe, Mg, Cu sau mt thi gian thu c 10,08 gam hn hp cht rn Y. Cho Y tan hon ton trong dung dch HNO3 (d 20% so vi lng phn ng). Sau phn ng thu c dung dch Z cha 43,101 gam cht tan v 1,792 lt hn hp kh T gm NO v NO2 (ktc) c t khi so vi H2 l 18. S mol HNO3 b kh gn nht vi : A. 0,092 B. 0,087 C. 0,084 D. 0,081

Cu 12: Khi lng oleum cha 71% SO3 v khi lng cn ly ha tan vo 100 gam dung dch H2SO4 60% th thu c oleum cha 30% SO3 v khi lng l A. 496,68 gam. B. 506,78 gam. C.539,68 gam. D. 312,56 gam.

Cu 13: X l hn hp gm mt axit no, mt andehit no v mt ancol (khng no, c mt ni i v s C < 5 trong phn t). t chy hon ton 0,06 mol X thu c 0,18 mol CO2 v 2,7 gam nc. Mt khc, cho Na d vo lng X trn thy thot ra 1,12 lt kh (ktc). Nu cho NaOH d vo lng X trn th s molNaOH phn ng l 0,04 mol.Bit cc phn ng hon ton. Phn trm khi lng ca andehit trong X l :

A. 12,36% B. 13,25% C. 11,55% D. 14,25%

Cu 14 : Ha tan ht 31,12 gam hn hp X gm Mg, Fe, Fe3O4, FeCO3 vo dung dch hn hp cha H2SO4 v KNO3. Sau phn ng thu c 4,48 lt hn hp kh Y (ktc) gm (CO2, NO, NO2, H2) c t khi hi so vi H2 l 14,6 v dung dch Z ch cha cc mui trung ha vi tng khi lng l m gam. Cho BaCl2d vo Z thy xut hin 140,965 gam kt ta trng. Mt khc cho NaOH d vo Z th thy c 1,085 mol NaOH phn ng ng thi xut hin 42,9 gam kt ta v 0,56 lt kh (ktc) thot ra. Bit cc phn ng xy ra hon ton. Cho cc nhn nh sau :

. Gi tr ca m l 82,285 gam.

(b). S mol ca KNO3 trong dung dch ban u l 0,225 mol.

(c). Phn trm khi lng FeCO3 trong X l 18,638%.

(d). S mol ca Fe3O4trong X l 0,05 mol.

(e). S mol Mg c trong X l 0,15 mol.

Tng s nhn nh ng l :

A. 1 B. 2 C. 3 D. 4Cu 15: Ha tan hon ton 4,8 gam Mg vo 49 gam dung dch H2SO4 80% ch thu c dung dch X v kh. Cho X tc dng hon ton vi 700 ml dung dch KOH 1M, sau lc b kt ta c dung dch Y. C cn Y c cht rn Z nng 58,575 gam . Tnh C% ca MgSO4 trong X.

A. 48,66 B. 44,61 C. 49,79 D. 46,24Cu 16: Hn hp X gm anehit Y, axit cacboxylic Z, este T. t chy hon ton 0,2 mol X cn 0,625 mol O2, thu c 0,525 mol CO2 v 0,525 mol nc . Cho Y trong 0,2 mol X tc dng vi dung dch AgNO3 d trong NH3, un nng sau phn ng c m gam Ag (hiu sut phn ng 100%). Gi tr ln nht ca m l

A. 32,4g

B. 64,8g

C. 16,2g D. 21,6g

Cu 17: Cho m gam hn hp X gm Mg, Al, Fe tc dng hon ton vi dung dch HNO3 d thu c dung dch Y cha m + 109,4 gam mui v V lt (ktc) hn hp kh X c tng khi lng 11,2 gam. Bit rng khi cho NaOH d vo Y un nng nh thy c 1,12 lt kh (ktc) thot ra . Gi tr ln nht ca V c th l

A.5,6

B. 4,48

C.6,72 D. 8,4 Cu 18: Cho m gam dung dch Na2CO3 21,2% vo 120 gam dung dch B gm XCl2 v YCl3 (t l mol 1:2, X v Y l hai kim loi nhm A) thu c dung dch D, kh E v 12 gam kt ta . Tip tc cho 200 gam dung dch AgNO3 40,5% vo dung dch D th thu c dung dch G ch cha mui nitrat, trong nng ca NaNO3 l 9,884%. Bit dung dch D ch cha mt cht tan duy nht. Nng % ca XCl2 l

A. 3,958% B. 7,917% C. 11,125% D. 5,563%

Cu 19: Hn hp kh X gm bn cht hu c: CH2O, C2H6O, C3H4v C4H8; trong s mol C3H4bng s mol C2H6O. t chy hon ton V lt hn hp X cn va 89,6 lt khng kh (gi s khng kh gm 20% O2v 80% N2v th tch). a hn hp sau phn ng v 0oC th c 84,224 lt hn hp kh Y. Cc th tch kh c o ktc . Gi tr ca V l

A. 3,36. B. 4,48. C. 2,24. D. 8,96

Cu 20 : Cho 7 gam hn hp A gm Fe, Cu dng bt vo 500ml dung dch AgNO3 0,38M khuy k hn hp. Sau khi cc phn ng xy ra hon ton lc, ra kt ta thu c dung dch X v m gam cht rn B. Thm lng d dung dch NaOH vo dung dch X, lc ra kt ta em nung trong khng kh n khi lng khng i c cht rn C c khi lng 7,6 gam. Gi tr ln nht ca m l:

A. 21,44 B. 21,80 C. 22,20

D. 22,50

Cu 21: Hn hp X c 2 hidrocacbon l ng ng lin tip, phn t khi trung binh cua X la 31,6. Ly 6,32 gam X li vo 200 gam dung dch (gm nc va cht xc tc thch hp) thu c dung dch Y v thy thot ra V lt kh kh Z ( ktc), phn t khi trung bnh ca hn hp Z l 33. Bit rng dung dch Y cha anhit vi nng 1,3046%. Gi tr ca V l:

A. 2,688B. 2,24.C. 3,36.D. 3,136.Cu 22: Thy phn mt lng saccaroz, trung ha dung dch sau phn ng v bng phng php thch hp, tch thu c m gam hn hp X, ri chia thnh hai phn bng nhau. Phn mt tc dng vi mt lng H2 d (Ni, t0) thu c 14,56 gam sobitol. Phn hai ha tan va ng 6,86 gam gam Cu(OH)2 nhit thng (gi thit cc monosaccarit hay isaccarit phn ng vi Cu(OH)2 theo t l mol tng ng l 2:1). Hiu sut phn ng thy phn saccaroz l

A. 60%.B. 80%.C. 50%.D. 40%.Cu 23: Hn hp X gm Ala-Ala, Ala-Gly-Ala, Ala-Gly-Ala-Gly v Ala-Gly-Ala-Gly-Gly. t 26,26 gam hn hp X cn va 25,872 lt O2(ktc). Cho 0,25 mol hn hp X tc dng vi dung dch KOH va th thu c m gam mui khan. Gi tr ca m l:

A.25,08. B.99,15. C.54,62. D.114,35.Cu 24: Hn hp X gm 4 cht hu c A, B, C, D c khi lng phn t tng dn. t chy hon ton 0,1 mol hn hp X ch thu c 2,7 gam H2O v 2,24 lt kh CO2 (ktc). Cho 0,1 mol X thc hin phn ng trng bc hon ton th thu c ti a 12,96 gam Ag. % s mol ca D trong X l

A.20%.B. 50%.C. 40%.D. 60%.

Cu 25: Cho 7,2 gam Mg phn ng hon ton vi 150 gam dung dch HNO3 37,8 % thu c dung dch A v thot ra cc kh NO, N2, N2O. Bit rng nu thm 900ml

dung dch NaOH 1M vo A, (khng thy kh thot ra), loi b kt ta thu c ri c cn v nung sn phm thu c ti khi lng khng i th c 57,75 gam cht rn. Nng % ca HNO3 trong dung dch A l

8,24%. B. 6,14%.C. 6,01%.D. 6,72%.

Cu 26: Hn hp X gm 1 mol amin no, mch h A v 2 mol amino axit no, mch h B tc dng va vi 4 mol HCl hay 4 mol NaOH. t a gam hn hp X cn 22,848 lt kh O2 ( ktc) thu c 5,376 lt N2 (ktc). Nu cho a gam hn hp trn tc dng vi dung dch HCl d th thu c bao nhiu gam mui?

89,68.B. 55,24.CCu 27: Nung m gam hn hp A gm FeS v FeS2 trong bnh kn cha 1 mol khng kh (trong khng kh c 20% O2 v 80% N2 theo th tch), n khi phn ng xy ra hon ton thu c cht rn B v hn hp kh C (84,74% N2, 10,6% SO2 v 4,66% O2 theo th tch). Gi tr m gn gi tr no di y nht ?

A. 8,0. B. 7,5. C. 9,0. D. 8,5.Cu 28: t chy hon ton mt este X no, n chc, mch h th s mol O2 cn dng bng 5/4 s mol CO2. Cho m gam este X tc dng ht vi 0,3 mol NaOH, sau phn ng thu c c cn dung dch thu c 26 gam cht rn. Gi tr m l

A. 17,6. B. 22,0.C. 26,4. D. 13,2.

Cu 29: Hn hp gm hai anhit n chc X v Y c chia thnh hai phn bng nhau:

- Phn 1: un nng vi dung dch AgNO3/NH3 d th to ra 10,8 gam Ag.

- Phn 2: oxi ha to thnh hai axit tng ng, sau cho hai axit ny phn ng vi 250 ml dung dch NaOH 0,26M c dung dch Z. trung ha lng NaOH d trong dung dch Z cn dng ng 100 ml dung dch HCl 0,25M. C cn dung dch Z ri em t chy cht rn thu c sau khi c cn, c 3,52 gam CO2 v 0,9 gam H2O. Cng thc phn t ca hai anhit X v Y l:

A. HCHO v C2H5CHO.

B. HCHO v C2H3CHO.

C. HCHO v CH3CHO.

D. CH3CHO v C2H5CHO.

Cu 30: Hn hp A gm glucoz v tinh bt c chia thnh hai phn. Phn th nht c khuy trong nc, lc v cho nc lc phn ng vi dung dch AgNO3 d/NH3 thy tch ra 2,16g Ag. Phn th hai c un nng vi dung dch H2SO4 long, trung ha hn hp thu c bng dung dch NaOH ri cho sn phm tc dng vi dung dch AgNO3 (d)/NH3 thy tch ra 6,48gam Ag. Gi s cc phn ng xy ra hon ton. Hn hp ban u c % khi lng glucoz v tinh bt ln lt l:A. 64,71 v 35,29B. 35,29 v 64,71C. 64,29 v 35,71D. 35,71 v 64,29

P NADABACCBDB

BBCDAADABC

ADDCBDBBBB

luyn thi s 6


Cu1: Trong cc phn ng sau, phn ng no trong lu hunh l cht b kh?

A.

B.

C.

D.

Cu 2: Cho 23,5 gam hn hp X gm bt cc kim loi Mg, Zn, Fe, Cu, Ba phn ng vi dung dch HCl sinh ra 2,24 lt kh H2. Khi lng mui thu c sau phn ng l:

A. 30,6 gamB. 28,9 gamC. 31,5 gamD. 33,8 gam

Cu 3: Cho 200ml dung dch cha 0,25M v 0,1M tc dng vi V (ml) dung dch thu c 2,34 gam kt ta. Gi tr ln nht ca V l:

A. 1650mlB. 1050 mlC. 1550 mlD. 1200ml

Cu 4: Khi so snh tnh cht ca Ca v Mg, pht biu no sau y khng ng?

S electron ha tr bng nhau

tc dng c vi nc nhit thng

u c iu ch bng phng php in phn mui nng chy

Oxit u c tnh cht oxit baz

Cu 5: t chy hon ton 5,9 gam mt amin no mch h n chc X thu c 6,72 lt CO2. Cng thc phn t ca X l:

A. C2H5NB. C2H7NC. C3H9ND. C3H7N

Cu6: Than hot tnh c rt nhiu ng dng trong y hc, chng hn nh lm dc liu trong iu tr ng c thc phm hay ng c khi ung nhm ha cht. Than hot tnh c ch to thnh vin ung s dng tin li cho nhng trng hp ng c. ng dng ny l nh vo c tnh no ca than hot tnh?

A. tnh tr ca than hot tnhB. kh nng hp th ca than hot tnh

C. kh nng hp ph ca than hot tnhD. kh nng thng hoa ca than hot tnh

Cu 7: iu no sau y ng khi ni v cht bo?

bt k este no ca glixerol v axit bo u c gi l cht bo

t chy du thc vt th thu c s mol CO2 ln hn s mol H2O

dehidro ha cht bo cha no s thu c cht bo no

cht bo v lipit l hai tn gi khc nhau ca cng mt loi cht hu c

Cu 8: Cho m gam dung dch ru etylic 460 phn ng vi Na d thy c 8,96 lt kh H2 thot ra ktc. Gi tr ca m l:

A. 20,0B. 80,0C. 40,0D. 60,0

Cu 9: Cho pin in ha nh hnh di. in k cho bit dng in i t in cc hiro chun sang in cc km chun v sut in ng ca pin bng 0,76V

Pht biu no di y khng ng?

in cc platin l in cc dng, in cc km l in cc m

Trn b mt l km din ra qu trnh kh to thnh ion km

Th in cc chun ca cp l ( 0,76V

Gi tr pH ca dung dch cha tm platin cng lc cng gim

Cu 10: Cho 2,75 gam hn hp M gm 2 ancol X v Y qua CuO, t nng, sau phn ng hon ton thu c hn hp Z gm 2 andehit n chc, ng ng k tip. Ly ton b lng Z thu c trn thc hin phn ng trng bc thu c 27 gam Ag. Khng nh khng ng l:

T X v Y u c th dng mt phn ng ha hc to axit axetic

X chim 50% s mol trong hn hp M

Khi t chy hon ton hn hp M th s mol O2 cn dng gp 1,5 ln s mol CO2 sinh ra

X v Y c th tc dng c vi nhau

Cu 11: Cho cc cht Al, Al2O3, Al2(SO4)3, Al(OH)3, NaHCO3. S cht u phn ng c vi dung dch HCl v dung dch NaOH l:

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

Cu 12: Hidro ha hon ton andehit X v mt ancol Y. t chy hon ton Y thu c CO2 v H2O theo t l 2 : 3. Mt khc cho a mol X tc dng vi AgNO3 trong NH3 d thu c 4a mol Ag. Tng s nguyn t c trong phn t X l: A. 6B. 4C. 8D. 7

Cu 13: X l hp cht hu c mch h cha mt loi nhm chc, c cng thc CxHyO2, trong X c 1 lin kt bi gia cacbon v cacbon. Gi tr nh nht ca y theo x l:

A. y = 2xB. y = 2x 6C. y = 2x 4D. y = 2x 2

Cu 14: S ng phn cu tao C5H10O co kha nng tham gia phan ng trang gng l:

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

Cu 15: Nung 49,2 gam hn hp v n khi lng khng i th thu c 5,4 gam nc. Khi lng cht rn thu c l:


Cu 16: Ha tan hon ton 51,3 gam hn hp X gm Na, Ca, Na2O v CaO vo nc thu c 5,6 lt kh H2 (ktc) v dung dch Y, trong c 28 gam NaOH. Hp th 17,92 lt SO2 (ktc) vo dung dch Y thu c m gam kt ta. Gi tr ca m l:

A. 60B. 54C. 72D. 48

Cu17: Cho cc kim loi Cu , Fe, Ag ln lt vo cc dung dch ring bit sau: HCl, CuSO4, FeCl2, FeCl3. S cp cht c phn ng vi nhau l:

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

Cu 18: Kim loi no sau y c th tan c trong dung dch NaOH c?

A. CrB. FeC. ZnD. Mg

Cu 19: Hn hp X gm etyl axetat, vinyl axetat, glixerol triaxetat v metyl format. Thy phn hon ton a gam hn hp X cn dng 200m dung dch NaOH 1,5M. Mt khc cng a gam cht X khi t chy hon ton cho V lt kh CO2 v 12,6 gam nc. Gi tr ca V l:

A. 17,92B. 14,56C. 16,8D. 22,4

Cu 20: Phn kali mt loi phn cung cp cho cy trng nguyn t kali di dng ion K+. Mt loi phn kali c thnh phn chnh l KCl (cn li l cc tp cht khng cha kali) c sn xut t qung xinvinit, c dinh dng 42%. Phn trm khi lng ca KCl trong loi phn kali l

A. 26,50%. B. 66,57%. C. 80,23%. D. 33,29%.

Cu 21: in phn dung dch cha 5,4 gam mui RCln sau khi qu trnh in phn kt thc thu c 8,96 lt kh Cl2 (ktc). Pht biu no sau y c ni dung khng ng?

A. Kim loi R c tnh kh yu hn so vi Fe

B. Kim loi R thuc chu k 4 nhm IB

C. Kim loi R c th tan c vi HCl long

D. Kim loi R l mt kim loi dn in, dn nhit tt

Cu22: Cho m gam bt st vo dung dch cha 0,6 mol HCl v 0,2 mol Na2SO4 sau khi phn ng hon ton thu c dung dch X v 3,36 lt (ktc) kh khng mu, mi hc thot ra. Bit rng dung dch X c th ha tan ti a 19,2 gam bt Cu. Gi tr ca m l:


Cu 23: Pht biu no sau y ng?

cc ancol a chc u phn ng vi Cu(OH)2 to ra dung dch mu xanh lam

metyl amin, etyl amin, trimetyl amin l cc cht kh iu kin thng

benzen lm mt mu nc brom iu kin nhit thng

amin, amino axit u khng tan tt trong nc

Cu 24: Cho 18,9 gam bt nhm vo dung dch X cha hai mui Cu(NO3)2 v AgNO3 sau khi phn ng hon ton thu c 69,3 gam hn hp cht rn Y v dung dch Z. Bit rng dung dch Z khng th ha tan c st kim loi. Lc cht rn ri cho lng d dung dch NH3 vo dung dch X th thu c 31,2 gam gam kt ta. Nu c cn dung dch X ri nung n khi lng khng i th thu c m gam rn T. Gi tr ca m l:

A. 63,4 B. 61,2 C. 98,4D. 105,6

Cu 25: Cho cc phn ng :

Tinh bt

;;

Khi lng mol phn t ca cht hu c Z l:

A. 58B. 74C. 60D. 88

Cu 26: Cho 30,8 gam hn hp gm Cu v Fe3O4 vo dung dch cha a mol HNO3. Sau khi cc phn ng xy ra hon ton thu c 2,24 lt kh X (sn phm kh duy nht ktc), dung dch Y cha 64,6 gam mui nitrat v 6,4 gam kim loi d. Gi tr ca a l: A. 0,2B. 0,7C. 0,8D. 1,0

Cu 27: Hn hp gm ba peptit u mch h c t l mol tng ng l 1 : 1 : 3. Thy phn hon ton m gam X, thu c hn hp sn phm gm 14,24 gam alanin, v 8,19 gam valin. Bit tng s lin kt peptit trong phn t ca ba peptit nh hn 13. Gi tr ca m l:

A. 18,83B. 18,29C. 19,19D. 18,47

Cu 28: C cc pht biu sau:

Photpho trng c cu trc mng tinh th phn t

Cc kim loi kim u c cu to mng tinh th lp phng tm khi

Lin kt ion c bn cht tnh in, l lc ht gia hai ion tri du

Tinh th kim cng thuc loi tinh th nguyn t

S pht biu ng l:

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

Cu 29: Peptit no sau y khng c phn ng mu biur?

A. Ala-Gly-GlyB. Ala-GlyC. Ala-Ala-Gly-GlyD. Gly-Ala-Gly

Cu 30: Metan hu nh khng tan trong nc v l do no sau y ?

V metan c khi lng ring nh

V phn t metan khng phn cc, cn phn t nc phn cc mnh

V to ra lin kt hidro yu

V phn t c lin kt cng ha tr bn

Cu 31: Cho 6,9 gam mt ankylbenzen X phn ng vi brom (xc tc Fe) thu c 10,26 gam hn hp hai dn xut monobrom. Bit mi dn xut monobrom u cha 46,784% brom trong phn t.

Hiu sut chung ca qu trnh brom ho l:

A. 60% B.70% C. 80% D. 85%

Cu 32: Hp cht CH2=CHCOOCH3 c ng phn mang tn gi l:

A. metyl acrylatB. metyl metacrylatC. axit metacrylicD. vinyl fomat

Cu 33: Khng th iu ch c etanol t:

A. glucozB. etyl axetatC. andehit axeticD. axit axetic

Cu34: Phng trnh phn ng no sau y khng ng?

A.

B.

C.

D.

Cu 35: Cho 12,4 gam cht hu c A c cng thc phn t C3H12O3N2 un nng vi 2 (l) dung dch NaOH 0,15M. Sau khi phn ng hon ton thu c cht kh lm xanh giy qu tm m. C cn dung dch sau phn ng thu c m gam cht rn. Gi tr ca m l:

A. 10,6 B. 14,6C. 17,4D. 16,2

Cu36: Nh my Ha cht Bin Ha (VICACO) c thnh lp nm 1976, tin thn l nh my sn xut xt (NaOH) u tin ti Vit Nam c xy dng nm 1962. Trong dy chuyn sn xut ca nh my, bn cnh sn xut xt lun lun c sn phm ph l:

A. Cl2B. N2C. O2D. CO2

Cu 37: Cho cc polime sau: t nilon-6,6; poli(vinyl clorua); thy tinh plexiglas; teflon; nha novolac; t visco, t nitron, cao su buna. Trong , s polime c iu ch bng phn ng trng hp l:

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

Cu 38: Cht no sau y c nhiu ng phn nht so vi cc cht cn li?

A. C4H10B. C4H13NC. C4H10OD. C4H9Cl

Cu39: Lm lnh 141,44 gam dung dch bo ha NaCl 1000C xung 200C thy c 18,45 gam NaCl.xH2O. Bit rng tan ca NaCl 1000C l 39,1 gam trong 100 gam nc v tan ca NaCl 200C l 35,9 gam trong 100 gam nc. Gi tr ca x l:

A. 10B. 8C. 7D. 5

Cu 40: Cho cc phn ng :

;

Trong kt ta X(OH)3 c mu vng nu. Bng ti thiu bao nhiu phn ng c th iu ch c X t X(OH)3?

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

Cu 41: Cho hp cht thm : ClC6H4CH2Cl + dung dch KOH (long, d, to) ta thu c cht no?

A. HOC6H4CH2OH. B. ClC6H4CH2OH.C. HOC6H4CH2Cl.D. KOC6H4CH2OH.

Cu42: Cho tt c cc ng phn mch h c cng thc C2H4O2 ln lt tc dng vi: Na, NaOH, NaHCO3, AgNO3/NH3, dung dch Br2. S th nghim c phn ng xy ra l?

A. 9 B. 6C. 11 D. 10

Cu 43: Cho phng trnh ha hc . S electron m CrI3 cho trong qu trnh phn ng trn l:

A. 3B. 27C. 54D. 36

Cu44: Khi trn nhng th tch bng nhau ca dung dch A c gi tr pH = 13 v dung dch B c gi tr pH = 2 th dung dch thu c c gi tr pH bng:

A. 1,35B. 12,65C. 1,05D. 12,95

Cu 45: Cho 28,0 gam hn hp X gm Fe2O3 v mt oxit kim loi M (ha tr II). Dn hn hp kh CO v H2 i qua hn hp X nung nng n khi phn ng hon ton thu c 23,2 gam cht rn Y v hn hp kh v hi Z. Kim loi M l:

A. ZnB. CaC. CuD. Mg

Cu 46: Cho 4,08 gam mt cht hu c X c cha mt chc andehit phn ng vi lng d dung dch AgNO3 trong NH3 ri c cn dung dch sau phn ng th thu c 25,44 gam hn hp cht rn Z. hidro ha hon ton 0,1 mol X cn s mol H2 l:

A. 0,1B. 0,2C. 0,3D. 0,4

Cu 47: iu ch 78 gam crom t Cr2O3 bng phng php nhit nhm (hiu sut phn ng t 90%) th lng bt Al cn t nht l: A. 40,5B. 54,0C. 81,0D. 45,0 Cu 48: Mt hn hp gm Al4C3, CaC2 v Ca vi s mol bng nhau. Cho 37,2 gam hn hp ny vo nc n phn ng hon ton thu c hn hp kh X. Cho hn hp kh X qua Ni, un nng thu c hn hp kh Y gm C2H2, C2H4, C2H6, H2 v CH4. Cho Y qua nc brom mt thi gian thy khi lng bnh brom tng 3,84 gam v c 11,424 lt hn hp Z thot ra (ktc). T khi ca Z so vi H2 gn vi gi tr no sau y nht?

A. 7,5B. 8,5C. 2,5D. 9,5

Cu 49: loi b hiu qu tp cht Fe2(SO4)3 trong dung dch FeSO4 ngi ta dng kim loi:

A. FeB. AgC. CuD. Pb

Cu50: Cho phn ng tng hp iu ch amoniac trong cng nghip: .

. C th lm tng tc phn ng tng hp NH3 ln gp 4 ln bng cch:

tng nng NH3 ln gp 2 ln

tng nng H2 gp 2 ln, gim nng N2 xung 2 ln

gim nng NH3 xung 4 ln

tng nng H2 ln gp 4 ln, gim nng NH3 xung 2 ln

1C2B3C4B5C6C7B8A9B10B

11A12A13C14C15C16C17D18C19C20B

21C22A23B24A25B26C27C28C29B30B

31C32C33D34C35B36A 37D38B39D40B

luyn thi s 7


luyn thi s 8


Cu 1:Cho cc nhn xt sau:

1.SiO2 l oxit axit,d tan trong kim nng chy v khng tan trong axit.

2.Hp kim nh cng v bn l: W-Co v Fe-Cr-Mn

3.Vi hoc g tm thy tinh lng s kh b chy

4.Kim loi Ca c dng lm cht ph gia ch to nhng hp kim c tnh n hi cao,bn chc,khng b n mn

5.C 4 cht hu c mch h c cng thc l C2H2On tc dng vi AgNO3/NH3 sinh ra kt ta.

6. iu ch etanol t butan cn ti thiu 2 phn ng.

7.ZnO,Al2O3,Cr2O3 l cc cht lng tnh nn u d tan trong dung dch kim long.

8.Trong mng tinh th kim loi ch c cc nguyn t kim loi cc nt mng tinh th

9.C 3 cng thc cu to ca hp cht l ng phn ca Toluen tham gia phn ng vi AgNO3/NH3 .

S nhn xt ng l:

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

Cu 2: Cho 33,35 gam hn hp A gm Fe3O4,Fe(NO3)3,Cu tc dng hon ton vi dung dch cha 0.414 mol H2SO4 (long) th thu c kh NO duy nht v dung dch B ch cha 2 mui.C cn B thu c bao nhiu gam mui khan?

A.64,400 hoc 61,520 B.65,976 hoc 61,520 C.73,122 hoc 64,400 D.65,976 hoc 75,922

Cu 3: Cho phng trnh ha hc sau:

K2Cr2O7+CuFeS2+HBr+H2SO4(K2SO4+Br2+CuSO4+Fe2(SO4)3+H2O+Cr2(SO4)3Tng h s cn bng trong phng trnh ion rt gn ca phng trnh trn l:

A.180 B.360 C.88 D.78

Cu 4: Trong mt bnh kn dung tch khng i cha 50gam hn hp A gm a1 gam FeCO3 cha a% tp cht tr v a2 gam FeS2 cng cha a% tp cht tr v mt lng gp 1.5 ln lng cn thit khng kh giu oxi (70% N2 v 30% oxi v th tch).Nung nng bnh cc phn ng xy ra hong ton thu c mt oxit (B) v hn hp kh C,sau a nhit bnh v trng thi ban u thy p sut trong bnh vn nh trc khi nung.Ly cht rn cho vo ng s,t nng ri cho mt lung CO i qua.Sau khi kt thc th nghim,t cht rn cn li trong ng s ly ra c 17.92 gam st,bit rng ch c 80% st oxi b kh thnh st.Cho hn hp kh C vo mt bnh kn dung tch khng i 5 lt c mt xc tc V2O5 nung nng bnh 546 C cho ti khi phn ng oxi ha SO2 t ti trng thi cn bng,thy p sut trong bnh lc l 38.304 atm.Phn trm tp cht tr a l:

A.2,36% B.4,12% C.3,05% D.2,14%

Cu 5: Cho 9.6 gam kim loi R tc dng vi 500ml dung dch HNO3 c mol/lit va ,thu c 2.24 lt kh A(l kh duy nht,ktc) v dung dch B.C cn dung dch B thu c 59.2 gam mui khan.A khng th l kh no sau y?

A.N2O B.N2 C.NO D.NO2Cu 6: Hin tng g xy ra khi cho H2S li qua dung dch FeCl3 (mu vng)?

A.Khng hin tng g.

B.Mu vng mt dn v c kt ta en xut hin.

C.Mu vng mt dn v c kt ta mu vng xut hin

D.Mu vng mt dn v c kt ta mu nu xut hin.

Cu 7: t chy hon ton 1.6 gam este n chc E thu c 3.52 g kh cacbonic v 1.152g hi nc.Mt khc,khi cho 10g E tc dng vi lng NaOH va thu c 14 g G.G tc dng axit long thu c G1 khng phn nhnh.Pht biu no sau y sai:

A.E c to thnh t axit tp chc

B.Thy phn E cho mt sn phm duy nht

C.Nung G vi vi ti xt thu c pentan

D.t G thu s mol CO2 bng s mol H2O

Cu 8: Axit axetylsalixylic dng lm thuc cm (aspirin) c cng thc phn t l

A.C8H8O4 B.C9H10O4 C.C8H8O3 D.C9H8O4Cu 9:Tin hnh nung x1 gam Cu vi x2 gam oxi th thu c sn phm A1.un nng A1 trong x3 gam dung dch H2SO4 98%.Sau khi tan thu c dung dch A2 v kh A3.Kh A3 khng to kt ta vi dung dch Pb(NO3)2 nhng lm nht mu dung dch brom,c hp th hon ton bi 200ml dung dch NaOH 0,15M to ra 2,3 gam mui.Khi c cn dung dch A2 th thu c 30 gam tinh th CuSO4.5H2O.Cho dung dch A2 tc dng vi dung dch NaOH, thu c lng kt ta nhiu nht phi dng t nht 300ml dung dch NaOH 1M.Cho lng kt ta tan trong HCl va ,sau nhng mt thanh st vo dung dch.Sau thi gian phn ng khi lng thanh st tng 0,8gam.Vy khi lng mui c trong dung dch sau khi nhng thanh st vo l:

A.15.4 B.18,4 C.22,4 D.56

Cu 10:Cho cc dung dch c cng nng mol sau: C2H5ONa(1);CH3COONa(2);C6H5ONa(3);C2H5COOK(4);Na2CO3(5).Th t tng dn PH t tri sang phi l:

A.2;4;5;3;1 B.2;3;5;4;1 C.3;4;5;1;2 D.2;5;1;4;3

Cu 11: Ch ra phn t c lin kt phn cc mnh nht di y:

A.F2 B.HF C.F2O D.NaF

Cu 12: Cho m1 gam hn hp gm Mg,Al vo m2 gam dung dch HNO3 24% va .Sau khi cc kim loi tan ht c 4,48 lt hn hp kh X gm NO,N2,N2O bay ra (ktc) v dung dch A.Thm 1 lng oxi va vo X,sau phn ng thu c hn hp kh Y.Dn Y t t qua dung dch NaOH d c 2,24 lt hn hp kh Z i ra (ktc).T khi ca Z i vi hidro bng 20.Nu cho dung dch NaOH vo A c kt ta ln nht thu c 31,1g kt ta.Vy gi tr ca m1 l:

A.11,55g B.5,1g C.25,5g D.10,2g

Cu 13: Hp cht hu c X c cng thc phn t C3H7O2N tc dng c vi c dung dch NaOH v dung dch HCl .S lng cng thc cu to ph hp vi tnh cht X l:

A.7 B.8 C.9 D.10

Cu 14: Hn hp A gm amoni nitrat,canxi cabonat v mt t tp cht tr.Ngi ta em trn 1 gam hn hp A vi mt lng kim loi bao gm 50% Cu,45% Al v 5% Zn ri em un nng vi NaOH d.Lng kh thot ra em cho i qua bnh ng 62ml dung dch H2SO4 0,1M.Sau phn ng, trung ha lng axit d ny cn phi dung 14ml dung dch NaOH 0,1M.Mt khc khi ta thm vo 22,31 gam dung dch H2SO4 (d) vo cc ng 8.3 gam hn hp A,sau phn ng khi lng cc cht trong cc l 28.784 gam.Vy phn trm tp cht tr c trong A bng:

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

Cu 15:Hn hp A gm Mg v Fe c t l khi lng l 3/5.Hn hp B gm FeO,Fe2O3,Fe3O4 trong s mol FeO bng Fe2O3.Ha tan B bng dung dch HCl d,sau thm tip A v ch cho phn ng xong ta thu c dung dch C khng mu v V lt kh H2(ktc).Cho dung dch C tc dng vi dung dch NaOH d ri lc ly kt ta nung trong khng kh n lng khng i thu c cht rn D.Bit rng V lt H2 ni trn va kh hon ton rn D khi em nung nng.Khi ngi ta trn A vi B th s thu c hn hp X.Vy phn trm khi lng Mg v Fe trong X ln lt l:

A.%Mg=30% v %Fe=70% B.%Mg=32,876% v %Fe=54.794%

C.%Mg=40% v %Fe=60% D.%Mg=33,33% v %Fe=66,67%

Cu 16:Ch s este ca cht bo l s mg KOH cn dng x phng ha va 1 gam cht bo.Mt loi cht bo cha 89% l tristearin c ch s este bng

A.89 B.120 C.56 D.168

Cu 17: t chy hon ton a gam kim loi B(trong dy in ha)trong bnh kn ng kh clo(d),thu c 32,5 gam mui v nhn thy th tch kh clo gim 6.72 lt (ktc).Sau ngi ta tin hnh thm a gam lng kim loi B ni trn mt lng kim loi A to thnh hn hp X.Cho X phn ng va vi dung dch HNO3 c,nng thu c kh mu nu duy nht c th tch 20.16 lt(ktc) v dung dch Y.C cn dung dch Y thu c 69.7 gam mui.Nu cho 100ml dung dch NaOH 9M vo dung dch Y th thu c kt ta cc i.Nung kt ta ny thu c cht rn C.Mt khc nu cho dung dch NaOH 1M vo hn hp X th c kh H2 thot ra,n khi phn ng kt thc th th tch dung dch NaOH cn dng l 100ml v khi lng X ch cn 11,2 gam.Khi lng hn hp X l:

A.13,9 gam B.21.6 C.5,67 D.22,24

Cu 18: Cho cc mnh sau:

1.Amin bc 1 tc dng vi HNO2 nhit thng lun cho ancol v gii phng kh N2

2.Anilin tc dng vi HNO2 nhit cao cho mui iazoni

3.Do nguyn t nito cn hai electron c thn c th to lin kt cho nhn vi ion H+ nn amin th hin tnh cht bazo.

4.Cht nhit rn khc cht nhit do ch kh nng chy.

5.Hu ht cc polime khng tan trong dung mi thng thng m ch tan trong mt s dung mi thch hp

6. ra l ng anilin,ngi ta ch cn dng nc

7.PE khng phn ng vi dung dch Brom do monome ca n khng c lin kt i

8.Theo cch tng hp,ngi ta chia polime thnh 3 loi:thin nhin,nhn to v tng hp

S mnh ng l:

A.2 B.3 C.6 D.5

Cu 19: Hp cht hu c A gm ba nguyn t C,H,O tc dng va vi dung dch KOH 11,666%.Sau phn ng thu c dung dch X,c cn dung dch X th phn hi ch c H2O vi khi lng l 86.6gam,cn li l cht rn Y c khi lng 23 gam.t chy hon ton Y thu c 13.8 gam K2CO3 v 38 gam hn hp CO2 v H2O.Ton b lng CO2 ny cho vo dung dch Ca(OH)2 d thu c 70 gam kt ta.Xc nh cng thc cu to ca A,bit A n chc?

A.CH3COOC6H5 B.HCOOC6H5 C.CH3CH2COOC2H3 D.C2H3COOCH3CH2

Cu 20:Cho m gam mui halogenua ca mt kim loi kim phn ng vi 50ml dung dch H2SO4 c,nng,d.Sau khi phn ng xy ra hon ton thu c kh A c mi c bit v hn hp sn phm B.Trung ha bng 200ml dung dch NaOH (2M) ri lm bay hi nc cn thn hn hp sn phm B,thu c 199.6(g) hn hp D(khi lng kh).Nung D n khi lng khng i thu c hn hp mui E c khi lng 98(g).Nu cho dung dch BaCl2 d vo B th thu c kt ta F c khi lng gp 1.4265 ln khi lng mui E.Dn kh A qua dung dch Pb(NO3)2 d thu c 23.8(g) kt ta mu en.Vy gi tr ca m l:

A.132.8 B.58.5 C.103 D.74.5

Cu 21: Hn hp A gm 3 ankin X,Y,Z c tng s mol l 0.05 mol.S nguyn t cacbon trong phn t mi cht u ln hn 2.t chy hon ton 0,05 mol A,thu c 0,13 mol H2O.Cho 0,05 mol A vo dung dch AgNO3 0,12M trong NH3 th thy dng ht 250 ml dung dch AgNO3 v thu c 4,55 gam kt ta.Cng thc phn t ca Y l?Cho bit ankin c khi lng phn t nh nht chim 40% s mol ca A.

A.C3H4 B.C4H6 C.C5H8 D.C6H10

Cu 22: Khi chy hidrocacbon A v B u cho CO2 v hi H2O theo t l 1,75:1 v th tch.Cho bay hi hon ton 5.06 gam A hoc B u thu c mt th tch hi ng bng th tch ca 1.76 gam oxi trong cng iu kin.Cho 13,8 gam A phn ng hon ton vi AgNO3(ly d) trong dung dch NH3 thu c 45,9 kt ta,B khng c phn ng va nu.Hidrocacbon A phn ng vi HCl cho cht C,hidrocacbon B khng phn ng vi HCl.Cht C cha 59.66% clo trong phn t.Cho C phn ng vi Br2 theo t l mol 1:1 c chiu sng ch thu c 2 dn xut cha halogen.Cht B lm mt mu dung dch KmnO4 khi un nng.Cng thc ca B l:

A.Stiren B.Toluen C.viny axetilen D.propen

Cu 23: Ly 161.6 gam mui A chia thnh 2 phn bng nhau ri thc hin 2 th nghim:

Th nghim 1:Nung A nhit cao trong khng kh n khi lng khng i thu c cht rn B v 64,8g kh Z.Ton b Z dn qua 0.5(l) dd KOH 2,4M(d=1,12g/ml) thu c dung dch C trong ch c mt mui v mt bazo c cng nng mol;trong C% mui l 9,11552%.Cho t t cho ti d Zn vo dung dch C thu c V(l) kh T.

Th nghim 2:Ha tan phn cn li vo 90g H2O thu c dung dch E.Cho 24.9g KI vo mt na dung dch E thu c dung dch F v kt ta K.Cho 100ml dung dch Br2 0,5M vo F thu c dung dch G v kt ta K.Cho NaOH d vo dung dch G th thu c kt ta H.Tng khi lng ca H v K l m(g).Gi tr ca V v m l:

A.1,92 v 28,9 B.1,92 v 29,75 C.6,72 v 29,75 D.6,72 v 28,9

Cu 24: Cho cc cht sau: (1)B-fructozo;(2)B-glucozo;(3) metyl a-glucozit;(4) saccarozo.Cc cht khng th chuyn sang mch h c l:

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

Cu 25: Hn hp X gm 2 este n chc l ng ng k tip c t l khi lng tng ng l 0.7396:1 v hiu s mol ca chng l cc i.X phng ha hon ton 86,96 X bng dung dch KOH d thu c mt mui duy nht(khng c kh nng tham gia phn ng trng Ag) c khi lng m1(g) v 2 ru n chc.Ly ton b ru qua CuO nung nng ri dn sn phm qua dung dch Br2 d th thy c a(mol) Br2 phn ng.Gi tr ca a l

A.0,5mol B.0,6 mol C.1,36 mol D.2,24mol

Cu 26: X,Y,Z l 3 nguyn t ha hc .Tng s ht mang in trong 3 phn t X2Y;ZY2;X2Z l 200 .R l phn t hp cht cha X,Y,Z gm 6 nguyn t c s ht mang in l:

A.104 B.52 C.62 D.124

Cu 27:Hai dung dch CH3COONa v NaOH c cng PH,nng mol/l ca cc dung dch tng ng l x v y.Quan h ca x v y l:

A.x=y B.xy D.x=0,1

Cu 28: Cho cc trng hp sau:

(1).O3 tc dng vi dung dch KI

(2).Axit HF tc dng vi SiO2(3).Nhit phn Cu(NO3)2(4).Kh SO2 tc dng vi nc Cl2(5).MnO2 tc dng vi dung dch HCl c,un nng.

(6).un nng dung dch bo ha gm NH4Cl v NaNO2(7).Cho kh NH3 vo bnh cha kh Cl2(8).Sc kh F2 vo nc

(9).Sc kh H2S vo dung dch FeCl3(10).Nhit phn mui NH4HCO3S trng hp to ra mt cht n cht l:

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

Cu 29: Cch no sau y sai khi dng chng n mn v tu bin bng st?

A.Ghp kim loi Zn vo pha ngoi v tu phn chm trong nc bin.

B.Ghp kim loi Cu vo pha ngoi v tu phn chm trong nc bin

C.Sn lp sn chng g ln b mt v tu

D.M ng ln b mt v tu

Cu 30: Nhn xt no sau y khng ng?

A.Nc p chui chn (k) cho phn ng trng gng

B.Nh vi git dung dch I2 vo mt mi ct ca qu chui chn(k) thy c mu xanh

C.Min cm chy vng y ni hi ngt hn cm pha trn.

D.Khi n cm nu nhai k s thy c v ngt

Cu 31: Nhn nh no sau y khng ng v cht git ra tng hp?

A.Cht git ra tng hp cng c cu to u phn cc,ui khng phn cc

B.Cht git ra tng hp c u im l dng c vi nc cng v chng t b kt ta bi ion canxi v magie

C.Cht git ra tng hp c iu ch t sn phm ca du m

D.Cht git ra c cha gc hidrocacbon phn nhnh khng gy nhim mi trng v chng b cc vi sinh vt phn hy

Cu 32:Axit photphoric v axit nitric cng phn ng c vi nhm cht no sau y:

A.MgO,KOH,CuSO4,NH3 C.CuCl2,KOH,Na2CO3,NH3B.KOH,Na2CO3,NH3,MgCl2 D.KOH,K2O,NH3,Na2CO3

Cu 33:Cho cc cht Ca3(PO4)2,P2O5,P,PH3,Ca3P2.Nu thit lp mi quan h gia cc cht th s chuyn ha ng l?

A.Ca3(PO4)2(P2O5(P(PH3(Ca3P2B.P2O5(Ca3(PO4)2(PH3(P(Ca3P2C.Ca3(PO4)2(P(P2O5(PH3(Ca3P2D.Ca3(PO4)2(P(Ca3P2(PH3(P2O5Cu 34:Cho cc dung dch:Cl2,KBr,Br2,H2SO3,Ni,H2SO4,HCl,H2S.Cht no tc dng c nhiu nht vi cht khc

A.Cl2 B.Br2 C.H2SO4 D.H2SO3Cu 35:C cc cht rn ring bit:Ba,Mg,Fe,ZnO,MgO,Al2O3,Ag,Zn,CuO.Ch dng thm ha cht H2SO4 long c th nhn bit c bao nhiu cht trong s cht trn?

A.8 B.6 C.7 D.9

Cu 36. Cho cc khng nh1.Na2CO3 d b phn hy bi nhit

2.Hn hp gm Cu v Fe2O3 c cng s mol tan ht trong dung dch H2SO4 long

3.Khi nung KClO3 thu c sn phm l KClO4;KCl;O24.Cu tan trong dung dch HCl long c mt oxi

5.Cl2 v O2 phn ng vi nhau khi c nhit .

6.Khng tn ti dung dch cha cation Ag+;Fe2+ v anion NO3-7.F2 hu nh phn ng vi cc phi kim nh S,Si,Br2,I2,O2,P

8.Cu khng tc dng c vi dung dch Fe(NO3)39.Khi un C2H5OH vi HI c xc tc thch hp thu c ankan tng ng

10.iu ch Cr2O3 bng cch nung hn hp K2Cr2O7+C

S khng nh ng l:

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

Cu 37: a gam hn hp bt Fe v Zn ngoi khng kh mt thi gian thu c 18.75 gam hn hp X.Ha tan hon ton X trong lng va H2SO4 c nng,thu c dung dch Y v 3.024 lt kh SO2(sn phm kh duy nht).Th tch dung dch HNO3 2M t nht cn ha tan hon ton a gam hn hp bt kim loi ban u l 520ml ng thi thu c V lt kh NO2(sn phm kh duy nht).Thm t t dung dch Ba(OH)2 vo Y,lc tch kt ta,em nung ngoi khng kh n khi lng khng i thu c ti a b gam cht rn.Gi tr ca b l(cc th tch kh o ktc)

A.110,90 B.81.491 C.90,055 D.98,965

Cu 38: Oxi ha hon ton m gam p-xilen bng dung dch KmnO4 un nng,va thu c dung dch X v cht rn Y.Cho cht rn Y phn ng ht vi dung dch HCl c, d thy thot ra x mol Cl2.S mol HCl phn ng va vi cc cht c trong dung dch X l:

A.0,25x mol B.2x mol C.0,5x mol D.x mol

Cu 39: Cho anilin tc dng vi HNO2 (0 -5 ) sau un nng nh thy bay ra N2.Tch ly sn phm hu c ri cho vo bnh axit CH3COOH c mt lng nh H2SO4 lm xc tc v un nng nh.Sau mt thi gian th tng hn hp c nhng cht hu c l:

A.CH3COOC6H5 v CH3COOH C.CH3COOH v C6H5OH

B.CH3COOH3NC6H5 v CH3COOH D.CH3COOH v C6H5NH2Cu 40: Phng php no sau y dng iu ch etanol trong phng th nghim:

A.Thy phn dn xut halogen(C2H5Br) bng dung dch kim

B.Cho etilen hp nc (xc tc axit)

C.Kh andehit(CH3CHO) bng H2D.Thy phn este CH3COOC2H5(xc tc axit)

P N

AABABCCDAA

DABDBDADAA

BBABCDCCBB

DDDDDBDBCA

luyn thi s 9


Cu 1: Pht biu no sau y khng ng khi ni v cc loi cao su?

cao sun Buna c bn km xa so vi cao su thin nhin

cao su l vt liu khng tan trong nc nhng tan trong xng v benzen

cao su isopren c bn cht l cao su thin nhin

cao su l vt liu khng dn in v khng dn nhin

Cu 2: Cho cc cht: axit acrylic, axit glutamic, propan-1,3-diol v 2-hidroxy-benzen 1-cacboxylic, axit oxalic, etylen glycol. S cht tc dng vi Na thu c s mol kh sinh ra bng s mol hidro phn ng l:

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

Cu 3: Mt loi nc cng c cha cc ion , , , v . Bin php no sau y khng chc chn lm mm c loi nc cng trn?

A. cho dung dch Ca(OH)2 d voB. cho dung dch Na2CO3 d vo

C. cho dung dch K2SO4 d vo D. cho dung dch Na3PO4 vo

Cu 4: Trong cc kh : N2, O2, Cl2, SO2 th c bao nhiu kh c th c iu ch bng m hnh th nghim hnh v di y, gi thit rng cht rn trong ng nghim khng phi l mt hn hp?

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

Cu 5: Kh X d gp nhng vng c xc ng vt b thi ra, thng c mi rt hi. Cht X l:

A. SO2B. Cl2C. NH3D. H2S

Cu 6: Trong phng th nghim, mt hc vin ly a (ml) dung dch K2SO4 1M cho vo b (ml) dung dch BaCl2 2M (bit rng a < 2b) thu c dung dch X. Hc vin ny chia dung dch X thnh 2 phn bng nhau

Phn 1 cho tc dng vi dung dch K2CO3 1M th thy kt ta cc i vi va a mol K2CO3

Phn 2 cho tc dng vi dung dch AgNO3 1M th thu c x mol kt ta

Gi tr x bng:

A. 4aB. 2aC. 3bD. 3a

Cu 7: Cc sn phm ca phn ng thy phn saccaroz u c th phn ng vi:

A. dung dch AgNO3 trong NH3B. dung dch Cu(OH)2

C. dung dch NaOH long

D. dung dch HCl long

Cu 8: Cho cc phn ng sau:

Phn ng no khng phi l phn ng oxi ha kh?

A. (a)B. (c)C. (b)D. (d)

Cu 9: Cho 0,06 mol mt amino axit X tc dng vi dung dch cha 0,15 mol NaOH thu c dung dch Y. Cho dung dch HCl t t n d vo dung dch Y th thu c 19,785 gam mui trong dung dch Z. Mui ca amino axit X trong dung dch Y cho l:

A.

B.

C.

D.

Cu 10: Mt hp cht hu c c cng thc dng . S ng phn (khng k ng phn hnh hc v cc cht tp chc) ca andehit ny ng vi gi tr n nh nht l:

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

Cu 11: Hn hp T gm mt peptit X v mt peptit Y trong peptit X, Y u cu thnh bi amino axit c phn t khi nh nht, Y c nhiu hn X 1 lin kt peptit. Cho 0,06 mol hn hp T vo nc, sau khi phn ng hon ton th thu c 2,52 gam nc. Nu cho ring lng peptit X trong hn hp T ni trn tc dng vi lng va dung dch KOH th khi lng mui to thnh l:

A. 11,32 gamB. 13,56 gamC. 10,60 gamD. 12,12gam

Cu 12: Cho cc phn ng:

(1)

(2)

Pht biu no sau y ng?

A. RCl v R2O u l cc kt ta trngB. RCl v R2O u l cc kt ta en

C. RCl v R2O u nhit phn thu c RD. RCl v R2O u tan c trong dung dch NH3Cu 13: Cho cc cht: glucoz, axit fomic, natri cacbonat, bari clorua v phenol. S cht c kh nng phn li thnh ion trong dung dch l:

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

Cu 14: un nng 37,0 gam hn hp X gm Al, Al2O3 v Fe2O3 cho n khi phn ng hon ton th thu c hn hp Y. Cho Y tc dng vi a mol dung dch HCl d thu c dung dch Z. Sau cho t t dung dch NaOH vo dung dch Z n khi t b mol th lng kt ta thu c nh nht, ng thi phn dung dch cn li khng lm qu tm i mu. Bit rng hm lng ba cht trong hn hp Y bng nhau v bng 5% lng HCl cho vo Y. T l a: b gn vi gi tr no sau y nht:

A. 1,3B. 1,7C. 1,5D. 1,1

Cu 15: Cho hn hp X gm 2 axit HNO3 v H3PO4 tc dng vi 0,35 mol dung dch NaOH th thu c 0,1 mol mui c cha photpho v 0,1 mol mui khng cha photpho. Nu mun trung ha hon ton hn hp axit trong X th cnlng Ca(OH)2 l:

A. 0,4 molB. 0,3molC. 0,1molD. 0,2 mol

Cu 16: Hp cht hu c X gm cc nguyn t C, H,O c khi lng phn t l 74. Tng hm lng cacbon v oxi trong hp cht hu c X khng th l

A. 86,4%B. 89,1%C. 91,8%D. 97,2%

Cu 17: Cho a mol Cu phn ng vi dung dch cha a mol AlCl3 v 3a mol FeCl3 thu c dung dch X. Khi cho dung dch NaOH d vo dung dch X th thu c bao nhiu cht kt ta khc nhau?

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

Cu 18: Pht biu no sau y khng ng khi ni v amin?

cc amin no u dy l nhng cht kh c mi khai

tnh baz ca metyl amin, etyl amin v anilin mnh hn so vi amoniac

anilin khng tan trong nc, rt c

amin l hp cht khi thay th mt hay nhiu nguyn t hidro ca amoniac bng gc hidrocacbon

Cu 19: Th tch kh hidro iu kin chun cn hidro ha hon ton 0,1 mol triolein thnh tristearin l:

A. 6,72 ltB. 4,48 ltC. 3,36 ltD. 8,96 lt

Cu 20: t chy m gam hon ton hn hp A gm vinyl format, ancol metylic v propanal-1,2-diol trong s mol ca vinyl format v ancol metylic bng nhau th thu c 52,8 gam CO2. Gi tr ca m l:

A. 83,2B. 41,6C. 62,4D. 93,6

Cu 21: Cho 0,1 mol glyxrol v 0,15 mol mt axit hu c n chc phn ng vi nhau trong mi trng c H2SO4 c, bit hiu sut phn ng l 60%, thu c 7,92 gam este B. Axit hu c ni trn l:

A. CH3COOHB. C2H3COOHC. C2H5COOHD. HCOOH

Cu 22: t chy 18,4 gam hn hp gm Mg v Fe trong kh O2 d thu c m gam hn hp cht rn X. Ha tan hon ton cht rn X vo dung dch HCl d th thu c dung dch Y. Tin hnh in phn dung dch Y vi in cc tr, mng ngn xp v cng dng in khng cho n khi dung dch Y khng cn kh nng to kt ta vi dung dch AgNO3 th dng li, khi ngi ta thy rng tng lng kh thot ra l 20,16 lt ( ktc). Khi lng cht rn xut hin sau qu trnh in phn l:


Cu 23: Hn hp X gm 1 ancol no, 2 chc mch h A v 1 ancol no n chc mch h B (cc nhm chc u bc 1) c t l mol nA : nB = 3: 1. Cho m g hn hp X tc dng vi natri d, thu c 7,84 lit H2 (ktc). Mt khc, cho m g hn hp X tc dng vi CuO d un nng, sau khi phn ng kt thc thu c 35,8g hn hp anehit v hi nc. t chy ht m g hn hp X th cn th tch O2 (lt) iu kin tiu chun gn vi gi tr no sau y nht?

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