THI HÓA 2010 (TOÁN TIN KHTN HN)

Hd_a tan X trorrg HNOr lodng clrL, rlrLr duo.c dung dich Y kh6ng chira mLr6iNHqNOr vd 0,02 rnol khf NO.. HEy x6c dinh n6ng dQ mol/l cira dung dich NaOH A.. Cho o-aminoaxit X t6c dpng vtr

TRiJC'ruG DAI FISC KhiTTd

KhdiTi{PT Chuy6n To6n Tin

t:

F{o vi tdn hoc s!nh: ; ,

Cffu 1: PhAn ilng ndo sau cliy khdng tao ra h6n hop liai nru6i?

BAr KIEM TRA K|FN THLrC MON i{OA HqC LOp 12 - Sg't0

Tlti'i giarc ldm bdi: 90 pht:tt - Ngdy tlti: 07-03-2010

-4'+D\

:pl:;

"""'1A',"' ,-\

/ +T,IlhTHAlJIi T{}AN

B C6 3 dung dich lArn qui tirr hoa xanh.

D C6 4 dLrng dich muiii kh6ng lArn doi mdu qui tim natri cira 2 axit ankanoic li6n ti6p, thu duo c Na2COr, H2O vd

B C2HsCOONa vd C:HrCOONa

A COr + NaOH (du) > B NO2 + NaOH (du' casci

C FerOq + HCI (dul) -+ D Ca(HCOr)' + NaOH (dL$

>

CAu 2: Cho c6c chAt saLr: (l) C6I{5OH; (2) CeHsNHrCl;(3) CH'=CH-COOH; (a) CHTCHO; (5) HCOOCHT Ph6t bi6Lr nAo sau ddy lA clirng?

4, Chdt l<lr6ng phin frng v6'i NaOH lA (2) ve (a) B Chet c6 plrAn ri'ng tr6rrg gLro-ng chi Id (a)

C Ch6t c6 phin frng v6'il.laHCOr chi ld (3) D Chdt c6 pliiLn irng v6i ru'o'u etylic le (l), (3)

.

CAu 3: Cho 6,4 ig) hon ho p CuO vir Fe2Or t6c dgng vira dir v6'i 100 (ml) dung dlch HCI thLr duo-c 2 muSi c6 ti lg

nrol [d I : l Ndng c16 mol cila dung dich HCl dE dirng la

Cfru 4: D6, rrh6n bi6t c6c khi: CO:, SO2, H2S, NHr cAn dirng c6c dung dich

A nu6'c brorn vi NaOH" B NaOH vi Ca(OH)2 C KMnOa vi NaOH._ D ntr'6'c brorn vii Ca(OH):

CAl 5: MQt este X c6 cdng thfrc plr6n tir CaH6O2 Thiry phAn hdt X thdnh h6n.lrop Y, Hdy cho bi€t X co cong thirc cdr-r t4o niro sau dAy cl6 Y cho phin ilng tr6ng guorrg t4o ra Iuo, rrg Ag l6'n nhAt?

A HCOOCH=CH-GhIr B CHTCOOCH=CH2 C CH2=CHCOO-CH3 D HCOOCH2-CH=CH2 Cf,u 6: C6 4 lq h6a chAt'b! nr6t nhdn ctLrng ridrrg biQt 4 drrng dich kh6ng mi.u sau d6y: NHaCl, NaCl, BaClz, NazCO: C6 th6 sir dr,rrrg thLr6c thil nAo sau cley dC phAn bigt c6c 19 dung d!ctr trOn?

A HCl B HzSOr C NaOt-I D Qui tim

Cfru T: CIio m (g) glucozo l6n men thhnh rugLr etylic vdi hieu str6t 80% HAp thir hodn todn khi CO: sinh ra vao

clLrng cllch nu.o.c uoi trong du thi thu dLLgc 20 (g) ket tira Gi6 tri cira m ld

A a5 (g) B 22,5 (g) C 14,4 (g) D I l'25 (g)

CAu 8: Choio dd sau: X -> rrro.u A bdc2 + Y -+ ruo.u B b|c 3 Biilt ring X co c6ngthrl'c phAn tit CsHro.

vd A Y, B ddu ld c6c sin phArn chinh' V{y cdng thirc cAu t4o cira X ld

A C Hr=C(C Hr)-CH2-CHr B CHr-CH=CH-CHz-CHr,

C CH3-C(CHr)=CH-CH: D CH3-CH(CHr)-CH=CH2

CAu 9: Hdycho bi6t nhiing chit nAo trong s6 c5c chAt: FeSOq (l); S02 (ll), KI (lll); CO2 (lV) c6 thd ldrn rnAt rniLr dung dlch thu6c tirn (KMnOq) trorrg m6i trtld'ng axit?

A.(t), (il), (ilI) B (ll), (lll), (lv) c (l), (ll) D.(l), (ll), (lll), (lv).

Cfiu t0: Cho c6c dung dich rnr'6i: NaCl, FeSOa, KHCO.r NH4Cl, K2S, Al2(SOa)3, Ba(l''lO3)2 Kh[ng dlnh ndo saLr

dAy lA dirng?

A Co 4 dung dich ldnr qui tim h6a do.

C Co 3 dLrng dich ldp qui tim h6a d6.

CAu l1: D5t hoAn todn 3,02 (g) X g6m mrr6i

0,085(rnol) CO2 C6ng tlrirc cira 2 mrr5i d6 la

A HCOONa vi CHTCOONa

C CrHTCOONavd CqHqCOONa D CH3COONa vA CzHsCOONa'

CAu 12: NgLry€n tit.X 6trarrg th6i co bdn c6 c6ir hinh electron 6'phArr l6'p ngodi cirng ld 3po Di6u nAo saLr clAy lih6ng dung khi n6i v6 nguy€ri tir X?

A Lirp ngodi cirngc[ra ngLry€n tu X c6 6 electron B H4tnhdn ngrrydn tir X c6 l6 proton

.

C X d' nh6rn IVA trong bing tudn hoAn D X nln.r o'chu ki 3 trong birrg tuAn lrodrr.

CAu l3: Cho lLrdng khi H2iu'.qt-* tlOn ho.p chri'a A[2O3, FeO, CutO, MgO nrrng n6ng d6n khi phin iLng x6y ra hoAn toAn ChAt rdn thu duo.'c 96rrr

A Al, Fe, Cu, Mg B Al2Or, Fe, Cu, Mg C Al, Fe, Cu, MgO., D AlzOr, Fe,Cu ,MgO'

CAu l4: C[o 0,06 (mol) Fe phdn flng v6'i.,Oz dun n6ng, thu drLo-c h6n ho.p rdn.X Hd_a tan X trorrg HNOr lodng clrL, rlrLr duo.c dung dich Y (kh6ng chira mLr6iNHqNOr) vd 0,02 (rnol) khf NO 56 rnol 02 dI phAn ilng td

A 0,03 B 0,04 c.0,05 D 0,06.

Cf;u 15: Cho h5n,ho.'p Cu vA, Fe_ vio durrg dich HNOr lolng, d6n khi phAn rl'ng xAy ra hohn ioirn tlru dLlo.c dirng clich (X) vd chAt ran (y) ChAt rin (Y) cho tdc dLrrrg v6i dLrng dlch HCI thAy c6 hidn trLo ng siri bqt l(hi Cho dLrr-.g

cl!ch NaOH vdo dung dichl(X) dLLo c kdt ria (Z) K6t tita (Z) la

A Fe(OH)r vd Cu(OH)r B Fe(OH)2 C Cu(OH)2 D Fe(OH)z vd Ctr(OH)2. CAu 16: Hien tirgng nio sau diy duo c m6 tA khdng chinh x6c?

A Nhfrrrg qLri tinr vdo dLrng dich etylarnin thAy qLri tinr h6a xarrh.

B Kliiclio clong k6i metyl"arnin tiep xirc v6'i khihidro clorua th6y xLrAt hi€n l<h6itring

C Nho vii giqt nir6.c brom vio 6ng nghiQm dq'ng dung diclr anilin thAy co k€t tLra trang.

D Nho vAi gigt anilin viro dLrng d!clr HCI thAy dung dich b! duc.

^A,, 11 ?t.^ tA ( /^\ o,.,{atrir A r6n drrno.;6'i lu'onq diL AsNO.|NH thu dLLoc 108 (s) Ae A c6 cong tlrfl'c Id

Cf;tr 18: Di6rr ph6n 2 iit dung dich chLia CLrSO< (r,6i clidrr cLlc tro) d5n ltlri khitlio6t ra 6'cA hai di6n cLic ciSir bir,,:

C,02 lnrol) thiclirirg lai DLrn-e ciich sau cTi€rr plrAn (xenr tir6 tich kh6irg thay ci6i) co

A pH = 1,0. B pH = 1,7, C pH = 2,0.

CAu 19: Phdt bi6ir nao sau dAy kh0ng ttr'rng?

A Phenol ld chdt rin, tirr!r th6 kh6rrg nrAu, c6 rnLri dac trLrng.

g O6 talr ngoii khong khi, phenol bi oxi h6a mot phAn n€rico rrrdLr hong.

C Phenol dd tau trorrq niiri'c lanli

D" Pirenol rAt d6c, gaf bong nang d6i v6'i cla.

CAu 20: M6t hidrocacbon X e6 cdng thflc don giirr

dLrng dich AgNOr,4.JHr tirirdLloc 2,92 (g) k6t tira VAy

A c6 2 cong thrllc cAu tAo th6a rndn v6'i X

A HCOOH vi CHTCOOH

C CH:COOH vA HOOC-CH2-COOH

A X le andehit 2 chri'c no, mach h6'.

C X la ankanal.

A glucozo'. B flructozo.

A 10,35% vh 3.54% B 123506 vd 8,54ak.

CAu 33: Cho cdc polirne sau: so-i b6ng; to tirn; len;

goc tir xenlLrlozo li

A.2 chAt.

(CH),, (n < 7) Cho 0,01 mol X t6c dung lrtlt vO.i lLr.o-ng clLr

B c6 3 cdng thilc cdLr tao th6a rn6n v6.i X

B HCOOH vd HOOC-COOH

D CHTCOOH vd HOOC-COOH

B X le andehit clorr clrirc, rnach h6'c6 I n6i d6i C=C

D X lA andelrit 2 chilc, rnach h6.c6 I n6i doi C=C

C saccarozo. D nrantozo

C 4 ch6t. D 5 ch6t.

C co 2 cong tlrilc plrirr tu'tlrong Llng vo'i X D c6ng thflc phdn til cira X la C2H2.

Ciu2l: H5n ho-p X gdnr 2 axit cacboxylic D6 trr-rrrg hoa h6t rn (g) X cAn 400 (rnl) dLrng dich NaOH t,25 (i\,1).

E6t chay lroAn toAn rn (g) X, thLr drro c I 1,2 lit CO2 (dl(tc) C6ng thirc c6u t4o thu gon cira 2 axit trong X lA

CAu22:.Hq'p chAt X chichria loai chi'c andehit Khi dotclidy hodLn todn X bing 02.th6y ti l9 sd rnol 02 phin Lr.irg

so v6i s6 mol CO: vd lioi nu6'c tao ra tuong frng lA 9 :8:6 Nhdn xdt ndo sau ddy v€ X ld ho p lli?

CAu 23: Cho BaO vdo dirng dich AlClr phAn frrrg hodrt todn, thLr dLroc dirng dich A vh k6t tua B DidLr nAo saLr

clAy khong th6 xiy ra?.Dung clich A chira ciic chdt tan lA

A BaCl2 duy nh6t B BaCl2, AlCh C BaCl2, Ba(AlO2)2 D BaCl2, Ba(OH)2.

CAu 24:.DLrng dich cua cacbohidral Z khi t6c dr,rLrg v6i CLr(OH)2 c6 th6 tao dung dieh xarrh larn d nhi6t do thLrong

vA c6 th6 tao [6t tira d6 ga6ir t tri dun n6ng V[y Z kh6ng ttr6 ta chAt ndo trorrg # c6c chAt cho du6.i ddy?

CAu27z Dien ph6n rrong chiy a garunLr6i halogenua cia kim loai M, tlru du'o.'c 0,96 gam M o Catot vd 0,896 lit khi (dktc) 6'Arrot MFt kh6c dLrng dlch chita a gam mudi halogenua rr6i trdrr tdc dr,rng v6'i AgNOr du' thu dLrq.c

I 1,48 ganr k6t tua C6ng tlrfic ,nu6i halog.nua ld

A CaCl2 B MgCl2 C CaBr2 D MgBr2

CAu 28: H5n ho-p X g6nr FeO, Fe2Or, FerO4 nirrg 6,96 gvd so rnol FeO bing s6 rlol F.rO-., Cho h5n ho-p X tan hdt trong dLrng dich HNOr Iohrrg thu duoc V lit khiNO (dktc) duy nhat Cid tri cira V lA

!au Zla Nung_n6ng AgNOi dug-c chdt r{

]< y1^t<tif Y Din khi Y vdo c6c rrr.r6c dLro-c dung dlch Z Cho toan b6

X vAo Z thtty X tan rn6t phdn vA tlrodt ra khi NO dLry nhdt GiA thi6t ciic phArr irng xdy ra hoirn toAn PhAn trarn khdi lu'o-ng cdra X kh6ng tan trorrg Z ld

A.2o% I : 8.25% C.3A% D 40%.

Cfru 30: Cho 0,Bl gam Al vA 2,8 ganr Fe t6c dsng v6'i 200 ml dung dich X chfla AgNOr vA Cu(NOr)2 Sau khi plrAn irng xAy ra lroan toiur thu cluo.c dung dich Y vA B,l2 gam h.5n ho-p 3 kim loai Clro 8,12 garn h5n ho-p 3 kirn loai ndy t6c dung v6'i.dung dich HCI drr, k€t thirc phan flng th6y tho6t ra 0,672lit H2 (dktc) N6ng dQ nrol cira AgNOr vir Cu(NOr)2 lin lu'o-t ld

A 0,l5M vA 0,25M B 0,10M vd 0,20M C 0,25M vA 0,1 5M D 0,25M vA 0,25M

CAu 3l: Cho 5,7 garn hdn ho.'p" bQt P gdrn Yg, el, Zn, Cu t6c dr-rng hoin todn v6'i oxi dLr thu dLroc hdn ho-p rin Q

co kh6i luo-ng lA 7,86 garn Th6 tich t6ith.ieu dLrng dich HCI lM cAn dirng ee noa tan hodn rodn Q Id

Cffu 25: Cho I i gam dung dich NaOH 2Ao/o vito 5 garn dLrng dich axit H.3PO4 39,2yo MLr6i thLr duo-c sau phAn irng lA

A NaH:POr B Na:PO"r vi NaH2POa C Na2HPOa vA NaH2POa D NarPOn vd Na2HPOa. Cf,u 26: Cho h5n hg'p gonr khong khidLr vA hoi cira24 gam metanol di qua chAt xirc t6c Cir nung n6ng, ian phim thu dLlo-c co th6 tao 40 rnl fonralin 38o/o (d = I ,l g/nrl) Hi0u sLrdt phAn Lnrg oxi h6a rnetarrol lir

CAU 32: Cho rnot.lLlo-ng bdt CaCO.r tdc dung hoAn toAn vo'i dung dich HCI 32,850 SaLr phirr ri'ng tlru dLlo-c dung dich X trong d6 ndng dq HCI con lai 1it24,20%0 Thdrn vAo X rnQt luong bQt MgCOr khLrAy dAu ch1 phAn frng xAy

ra hoAtt toAn tliLr dLtoc dirng dich Y trong d6 n6ng d6 HCI con ldZl,l0% Ndng d6 phAn trdm c6c,nLr6i CaCl, vd' MgCl2 trong dLrng dich Y tu'ong flng lA

C 12,35% vd3,54o/o W,54Yovd 10.35%.

to visco, to axetat; Nilon-6,6;ffinang 56 polirne co ngLr6n

B 3 chAt.

CAu 34: Hop chdt X (chiL&:C, H, O) trorrg phdn tft co ch.ila m6t rrhom andehit Cho 0,52 gam ctrdt X phAn ilng htit vo-i AgNO'r/NHr tao ra l;b8 gam Ag Mat khAc 3,12 chAt X phin flng h6t v6'iNa gini plr6ng 672m1khi H2 (ditc)

So hon clrAt thAa rrrirr rnni ti,rl nh6t rrhrr trAtr cirn X lA

DE THr rsrJDAr Hec IAN u - Naru zoro

Mon thi: nda HQC

Thli gian lim bii: 90 philt (khdng ke tho'i gian giao d6)

Me dd thi 239

ChodfrkiQnnguyOntfrkhliisau:H:1;Li:7;C=12;N:14;O:16;Na=23;Mg:24;AI:27;S:

32;Cl: 35,5; Br= 80; K: 39; Ca=40; Cr = 52;Mn= 55; Fe = 56; Ni = 'Jn:65; Rb = 85; Ag

= 108; Sn= 119; Cs:133;Ba:137;Pb:207

TRI'ONG DII KHOA HOC TT' NHIT,N

KHOI PHo THONGCHUYTN

TOAN - TIN

Cf,u 1 Cho 5,60 lft COz (dktc) vdo 200 ml dung dich chira NaOH 0,5M vd Ba(OH)z 0,6M fhOi luqng ket tua thu du-ry c sau phan ung ld:

Cha2, DiQn phdn dung dich CuSOa vsi dign cgc ddng ldm anot vd thdp lim catot Hdy cho biet qua trinh nio

sau dAy xiry ratgi anot?

A Cu2* + 2e - Cu.

Cffu 3 Cho phin img sau: FeS2 + HNOr + HCI -* FeClr + HzSO+ + NO + HzO_ Vdi he s6 c6c ch6t trong phucrng trintrli c6c s5 nguyCn don gian nh6t khdng gian u6c cho nhau TOng d4i s6 c6c he s6 ctra chirng ld:

C6u 4 Thuj'phdn hodn toan 18,5gam h6n hqp X gdm etylfomat vd metylaxetat cin dung vira fret ZOO,O mt dung dich NaOH HEy x6c dinh n6ng dQ mol/l cira dung dich NaOH

A 1,25M B 1,00M

Ciu 5 Chqn nh4n xdt sai ?

A Phucrng phSp trao d6i ion chi c6 tfr0 tam giam dQ cimg t4m thoi cira nudc

B Phan img chdy cta thu6c sung (KNO3, S, C) tpo ra K2S

C O nhi€t d0 thuong thi Mg c6 th€ khri ch4m dugc nudc

D Natri ch6y tro?rg kh6ng khf khO t?o ra NazOz

CAu 6 Thuf phqn t tOng hoan toan tetrapeptit mach hd X thu dugc 3 dipeptit ld Ala-Gly; Glu-Ala; Gly-Ala.

VQy cdng thtc c6u t4o cria X ld:

A Glu-Ala-Ala-GIy B Ala-G1u-Ala-Gly

' C Glu-Ala-Gly-Ala D Gly-Ala'Glu-Ala',

Cdu 7 OOt ehay hodn toan ancol X thu dugc !3,2 gamCoz vi 702 garnHzO 56 ancol X c6 thO c6 ld:

C6u 8 Nhiet ph6n,hoin toan 0,1 mol mudi MQ,l,Or)r $i thu ttu-o c chdt rdn X vit 5;04lft h6n hqp khi gdm NOz vi Oz Tinh th6 tich dung dich HzSO+ 1,0M t6i thi€u c6n dung d€ hod tan vua h€t ch6t ran X?

Ciu 9 Cho Ba vio cdc dung dich ri€ng biQt sau: Ca(HCO3)2, CuSO+, (I.{Hq)zCOi, NarPOq, MgClz 56 chdt ket tria khdc nhau tpo ra ld:

Cdu 10 Ttr etilen, ngu<ri ta diAu cniS pVC theo ss dO sau:

etilen '+C!z , l,2-dicioetan :oo'c u vinyl cloruu trnnehqp r poli (vinyl clorua)

vdi hiQu su6t cdc,ph6n img tuong rmg ld 80%;7A% vit 62,50/o Tinh thd tich etilen (dktc) cAn lAy d€ eo th€ di€u chd dugc I tan PVC?

.{ 1064m3 B 1008m3 C.1024m3 D 1046m3

CAu 11" Phin img ndo sau ddy khdmg chimg t6 dugc glucozo c6 c6u true d4ng mqch ho?

A glucozo + H2Atri, t0 B glucozo + (CH3CO)2O

B Cu t CuZ* + 2e

D.8.

c.7.

C glucozo + AgNO3A{Hr, to D glucozo + Bi2 (dd)

Chu l}.Cho c6c nh6m th6 sau: -CHs; -NHz; -NH:CI; -OH; -NOz; -COOH; -OCH: HEy cho bi6t khi li6n ktit vdi vong benzen lAm t[ng khi ndng phan ung th6 H 0 vdng benzen?

Ciu 13 C6 6 dung dlch gdm: KHCO3, CuSOq, (l'trHa)2SO+, AlCl:, Mg(NO:)2, NaOH dlmg trong 6 lq mAt nhAn, dC phan biQt c6c Oung aicfr tr€n ta dung thu6c thu ld:

A dd HNOr B dd HCl c Kim lo4i Ba D Kim lo4i K.

CAu 14 Cho 8,0 gam h6.n hqp X Spm Mg vd Fe (tf lQ mol 1 : 1) vdo 400,0 ml dung dich AgNO: 0,8M vd CuO{O:)z 0,5M finfr PrOi lugng tiSt tua thu duo c sau phan img

Ciu 15 H6y cho bitit phan img nAo sau ddy dugc sri dpng d€ di6u ch6 HCI trong phdng thi nghiQm?

A CH4 ; Clz (as) * Cft:Cl + HCl B HzSO+ d{c + NaCl(r) NaHSOo + HCll.

c H2 + Clz (as) -' 2HCl D Cl2 + HzO -* HCI + HCIO

Cnu 16 OC S,4 iu* UOt sit trong khdng khi thu duqc ch6t ran X Cho X vdo dung dich HNOr du thu dugc 3,36lithSn hqrp khi g6m NO vi NO2 (dktc) V4y sd mol HNO3 dA phan img ld:

CAu 17 Cho o-aminoaxit (X) t6c dpng vtra du vcri dung dich NaOH thu duqc 11,1 gam mu6i Th€m ti6p dung dich HCI du vdo dung dich tr6n, 16 .4n dung dich thu dugc 18,4 gam h6n hqrp mu6i Vfly c6ng thirc cria

X li:

Ciu 18 C6 cdc ch6t sau: phenol, axit axetic, phenylamoniclorua, natriphenolat, NaOH Cho c6c ch6t d6 tac dimg vdi nhau theo timg d$i mgt, h6y cho bitit c6 bao nhi6u c4p xiy ra phan img?

CAu 19 Cho c6c ho6 ch6t sau: Ba(HCOr)2, NaOH, Na2CO3, BaClz vi HCl TrQn c6c dung dich d6 v6i nhau theo ttmg d6i mQt, hdy cho Uiet sO c{p xiy ra phin fmg?

Ciu 20 Cho 8,7gam mQt andehit dcm chric, p?ch ho phan img vcri lugng du AgNO3 trong dung dich NH:, dun n6ng Lugng Ag sinh ra cho phan ung tret vOi axii fnVOt loang, thoat ra 2,i4lit khi NO (san phdm khri

duy nh6t, do o dktc) Cdng thirc cAu t4o thu gqn cira andehit ld:

A cH3cHo B HCHO C CH3CH2CHO D CHz{HCHO.

CAu21,.H6n ftqrp X g6m axit axetic vA etanol Cho 17,28 gam h6n hqp X t6c dirng Na du thu dugc 3,6961i1 H2 (dktc) ThdrnHzSOa d4c vdo h6n hqp X, dun n6ng thu dugc 10,56 gam etylaxetat Hi$u sudt phan ftng

este h6a li :

ChuZ2.Dung dich X c6 ch-ira c6c ion: Mg'*, B** , Ca2*, Na* 0,1 mol vd,A,2 mol Cl- vd0,2 mol NOr. Th6m dung dich Kzco: lM vdo X d€n khi duqcJuqng kct ttra l6n ntrat ttrSy rrct v (ml) Gi6 tri cria v ld:

C6u 23 Cho khi CO di quaA,2mol Fe3Oa nung n6ng.thu dugc hSn.hqp ch6t ran X vd khi COz Hdrp thp h6t

t 6i CO, bdng nu6c vdi trong du thu duqc 50,0 gam ktit tua Cho chet rin X vdo dung dich HzSOa d{c, n6ng

du Tinh sli mol HzSO+ dd ph6n img?

A 1,8 mol 8.1,6 mol C 1,2 mol

Chw2l.Ddy chuy€n h6a diAu chti kh6ng dirng ld

A Benzen *93/J'J/r '-1 h :-b!!-+ m-bromnitrobenzen

B C:Ho -r$=fl$!-+ T, %propan-l,2-diol.

C naphtalen +oz&k)'xt:v2os'3so-4s0o(: > Y t -:!!1axit phtalic.

D BenZen +cHr=cHr,At0, , Z, @Stiren.

CAu 25 Crackinh hodn todn ankan X nguoi ta thu eiugc mQt h5n hqp gdm CH+ 25o/o; CzHq 50% vd C3H6 25% (theo th6 tich) V4y c6ng thric cua X ld:

a ra^rr.^ E CoHrq C" CzHro

Cfiu 26 Trong c6c ph6t bi6u sau, ph6t bi0u soe' ld:

D 1,5 mol

D" CsHrz

A Anilin t6c dpng voi dung dich HCI vira dir, lAy sdn phAm cho t6c dung voi dung dich NaOH lai thu

duo c anilin

B Glyxin t6c dpng vcri dung dfch NaOH vira dri, lAy sAn pham cho t6c dqng vcri dung dlch HCI du l4i thu

' dugc glyxin,

C Amoiac c6 tinh bazo ytiu hon metyl amin,$*irg tinhbazo cria amoniac l4i m4nh hcm anilin

D O diAu kiQn thucng, aminoaxit ld nhirng ch6t rin ktit tinh dd tan trong nudc vd c6 nhiQt n6ng chdy khd cao

Cdu27, Cdng thric dcrn gian cria m6t axit cacboxylic ld CzHlOz Eun n6ng axit d6 voi h6n hqtp hai ancol dsri chric (xric t6c HzSO+ dac) thu duqc hdn hqp ba dieste trong do c6 este Y D6t chdy hodn toan 1 mol Y thu dugc 8 mol COz vd 6 mol HzO V4y cdng thric cira 2 ancol ld:

A CH3OH vd CrHsOH

C CzHsOH vi C:HsOH

B CzHsOH vd CTHzOH

D CH3OH vd CzHsOH

D 1s2 2s22p6 3s23pr

COSOI

CAu 28 Cho 20 gam quAng dolomit (CaCO:, MgCOr vd t4p chdt tro) viro dung dich HCI du thu duoc 5,6 lit CO2 (00C vd 0,8 atm) Vdy %khOi luqng cira CaCOs.MgCO: trong qu4ng ld:

Ciu 29 Cho c6c phan rmg sau: (1) Fe + HzSO+ (lodng); (2) Fe(OH)2 + H2SOa (dpc, nong); (3)'Fe(OH)3 + HzSO+ d{c, n6ng; (4) FelO+ + HzSOa (d{c, n6rrg); (5) FeO + HzSO+ lo6ng Nhirng phan rmg mir trong di

HzSO+ d6ng vai trd ch6t oxi h6a ld:

B 1s2 z*zp6 3*3p6 4s2+pt

B.(1) (2) (4)

CAu 30 H6y cho Uirit c6u hinh electron ndo sau ddy sai?

,4 1s2 2s22p6 3s23p63ds 4sl

c ls2 2s22p6 3s23p53dlo4sr

Cffu 31 Chgn ph6n img sai?

n

A.3Cl2+ ( )) *tCeHeCle.

\_ l

B CHrOH + CO ro,xt

, CHICOOH

C HzN-CH2-COOH + C2H5OH + HCltrno C CI-H3N* -CH, -COOC2H5.

D CH=CH + 2HCl ro,.r , CICH2_CH2CI

Ciu 32 Cho bi6t: X(Z : g; Y(Z: 8); M (Z = 11) vd T (Z : 15) Sg sdp x6p ndo sau ddy dring voi chiAu

tdng dAn vC AO dm diQn cria cdc nguy€n t6?

Cdu 33 Cho 5,52 gam axit hffu ccr X dcrn chitc, m4ch hd t6c dr,rng hdt voi CaCO: thu duo c 7,8 gam mudi cacboxylat C6ng thric cira X ld:

Ciu 34 Cho so dd sau: (1) MCO3 rocqo , MO + CO2

(2) MO + H2O -' M(OH)2

(3) M(OH)2 + Ba(HCOr)z -' MCOr + BaCO: + 2HzO

Vfy MCO3 c6 th6ld ch6t ndo sau ddy?

Cffu 35 Cho 200,0 ml dung dich NaOH 2,0M vdo V lit dung dich AlClr x (M) thu dugc 7,8 gam k6t tua, N5r.r cho 100,0 ml dung dich NaOH 2M vdo V lit dung dlch AlCl3 x (M) thi s6 gam klit ttra thu'dugc ld

A 7,8 gam 8,5,2 gam C 3,9 gam D.2,6 gam

Cflu 36 Cho a gam SO3 vdo 100 ml dung dich Ba(OH)z 2M, phan ung xong thu dugc dung dich X Bi€t dung dich X t6c dgng vira dtr voi 10,2 gam Al2O3 Gi6 tri lcrn nhAt ciia a ld

CAu 37" Cho 52 gam stiren dd b! trung hqp mQt ph6n tdc dpng v6i 100m1 dd brom 1,5M Sau phin img chc thOm NaI du vdo h6n hqp thi duqc 6,35 gam i6t HiQu suAt phan img trung hqp ld:

CAu 38 H6a eh6t ndo sau ddy sir dpng d0 ph6n biQt c6c dung dich ch6t sau: axit axetic, axit metacrylic, axil fomic (Gia thi0t c6c h6a chdt d6 dlmg trong cdc binh mdt nhan)

A Cu(OH)2A laOH, B quj'tim C Br2 (dd) D AgNO3AtrH3.

Cffu 39 Odn hdn hqp khi CO vd H, ftAy du) qua 40,0 gam h6n hqp X gdm Al2O3, MgO, {'erO: nung n'6ng dugc 30,4 gam h6n'hgi'p rin Y (gia si.tti O qtra trinh-kfli oxit vA kim loai) Hdy cho biiSt khi cho Y vdo dung dich HzSOa lo6ng du thi tho6t ra bao nhi6u lit H2 (dktc)

A.I3,44lit B 11,2 lit C 10,08 lit D 8,96 lit '

CAu 40 ChAt htu co X dcm chirc m4ch hd c6 cbng thrlc phan q ld CaH6O2 X t6c dpng vdi NaOH thu duo c mu$i y vd ch6t hiru co Z Zl&}ngtdc dpng v6i Na Hdy cho bi€t X c6 bao nhi6u cdng thfc c6u t4o?

II PHAN nrENc (10 ciu)

Thi sinh chi duqc lhm mQt trong hai phin

A Phin theo chuong trinh chuAn:

Cdu 41 H6a chAt ndo sau dAy t6c dgng voi c6c chAt: glucozo, fructozs vi saccarozs?

A CH3OH/HCI B AgNOrAtrHr' C (CH3CO)2O D Brz (dd)

Cfrg 42.bxi ho6 6,0 gam ancol don chfc X bing C.uO nung n6ng Sau phan img thu dugc 8,0 gam h5n hqp chAt l6ng g6m ancol, *Arnit vi nudc M[t kh6c, d€ hidrat ho6 X thu dugc anken V4y cdng thirc ctra ancol ld:

A CHTOH B C+HqOH C CzHsOH D' CIH;OH'

CAu 43 Cho c6c kim lo4i: Na, Mg, Zn,Pb,Cu, Al SO tim loai dAy dugc Fe ra kh6i dung dich Fe(NO3)3?

Cffu 44 Dung dich chdt ndo sau day ddi miu quj'tim thdnh xanh?

A CoHsNHz

B HOOCCH2CH2CH(NIH2)COOH

(2)Fz+ H2O '+ (3) MnOz + HCI dfc-*

(5) khi HzS + nu6c Clo -(7) NH4NO, Jn

A.5.

A.3.

8.3.

8.2.

bau ls cho cdn bang sau : Nz + 3Hz C 2NHr AH: - 92kJ'

Sp tdc dQng ndo sau d6y ldm c6n bing chuyOn dich vA phia thufn?

A t6ng nttigt AO B tdng th6 tich binh C tdng lugng xirc t6c D tdng 6p suAt.

CAu 4d Cho 2 thanh kim loei Fe vtt Zn cung nhring veg dung dich CuSOq cho d6n khi n6ng dQ mol/l cira

itf g6p AOi ct a Fe2* ihi tAy'Z ttrantr kim lo4ira tfray f<frOi lugiig thanh Zn giim 0,2 gam HEy cho UiCt t<trOi

tuqng thanh Fe thay aOi ntru tfre ndo ?

A tdng 1,60 gam B tdng 0,40 gam C tdng 0,80 gam D gi6m 0,08 gam

Ciu 47 Cho c6c phdn img:

(1) O: + dung dich

KI (4) (NH4)2CO3 J-)

1e) caoilz + HCI '+

SO phan img t4o ra dcrn chAt ld:

C6u 4g Andehit X trong d6 oxi chi6m 32% vE ktrOi luqng Hidro h6a hoan todn andehit X thu dugc ancol Y Cho y t6c dirng v6i Na thu dugc sd mol khi Hz bang sd mol Y dd phan ung Hdy cho bitit X c6 bao nhi6u b6ng thric c6u t4o ?

C6u 49 Cho c6c ch6t c6 c6ng thirc c6u t4o sau: (l) CHr:g1t-aH=9;, (2) CH3CHzCHO; (3) CHt:911-cHzoH; (4) CH3COCH3 Nhiing chat khi hidro h6a cho cirng mQt sdn ph6m ld:

A.(1), (2), (3) ts.(1), (3), (4) C.(1), (2)'(4) D (2),(3)' (4)

Cau SO D6y c6c kim lo4i nio sau ddy khi cho t6c dpng vdi HCI vi khi Clz thu dugc hai mudi kh6c nhau?

A Pb, Sn, Zn B Fe, Cr, Ni C Cu, Fe, Cr' D Sn, F9' Cr'

B FhAn theo ehuong trinh nflng cao:

CAu SL" Oxi h6a 12,8 gam h6n hqp ancol gdm etilen glicol vir etanol bdng CuO nung n6ng thu dugc 16,0

r ! 'i '' ' !- -'' " Lern lanh hdn hqp Y sau d6 cho t6c dpng vdi AgNO3 du trong dung dich NF{3, dun n6ng gam non nqp nol r.

thi thu dugc bao nhi6u gam Ag?

4.21,6 gam 8.43,2 gam C 54,0 gam D.32,4

gam

CAu 52 cho thiS diQn cgc cludn cria'c6l cdp oxi h6a/khftJ;, li;.T;;: -1,91v; Fe,*/Fe = -0,44y;

cu2*/cu = + 0,34viFe3i/Fe2* : + oiti rtai;tffidil* ** ndo sau d6y kh6ng xiry ra?

cau 53' Khi tdns nhiet d0 phdn img tir 200c l€n 400c thi t6c a0 ph* rlmg tdng l6n bao Jic, tanz ni6t ring cir tdng tooc toc?E phan rmg tang Gn 3lAr '-"

A.9len.

cdu 54 gdy cho bitit day kim lo4i ndo sau d6y ran rrong dung dich

H2So+ d4c, nguQi?

9?t,ti: cho dungdich axit HX vdo muoi egNo3 thi thu duqc k6t i.iu cto k6t ma vdo dung dich NH3 lo6ng

thdy k€t tua tan rc Ygy HX ld:

-9115{.E6 trung hda 100,0 gam dung dich amin dcrn chric x ndng dQ 5,4%rAn o,:igTd',j,0 ml dung dich

HzSO+ 0,6M Vpy c6ng thric cria amin ld: '\

A CeHzN a

,_ B CH'N C C3HeN D c2H7N

ciu 57 cho cric ch6t sau:.(1).5eton, (2),axet?ndehit, (3) axit axetic va (a) p.op*-z-oi.'du r6p x6p nio dfng voi chiAu rang den nniet A9 s6i cria c6c chdt? Ye \r/'

A (4) < (2) < (3) < (1) B.(1) < (2) <(4) < (3).

_9.@<(1)<(4)<(3) o.i:).i+j.iri=izt

C6u 5,8 Trucrng hgrp ndo sau ddy dugc coi ld kh6ng khi s4ch?

' A khdng khf chria 75%Nz;2r% oz; 4%hdnhgp co2, hoi nu6c, khi hiiSm

B kh6ng khi chria 78% Nz; lq% Oz; 4%h6nhq,p COr, SOz, HCf

c khdng khi chria 78% Nz; 16% oz;3%o caz; t6to co; r%bvivir c6c tap ch6t

D kadng khi chria 78% Nz; 2t% oz; L%hdnhgrp co2, hoi nu6c, khf h#;

ciu 59 oxi ho6 m gam ancol X thu duoc andehiiv Crro Y r6c dlrng uoi ngNo3 du trong dung dich NH3

dl"

:"-",s thl duql:1Tol_i.q eep a lan s6 mor y Mat kh6c, oot cira} h"e" ;;;'x;#;r;ib", ;b;il;;

gdp 1,5 l6n s6 mol X Vfly X ld:

A propenol B etilenglicol C etanol

D metariol

CAu 60 Hdy cho bi6t cacbohidrat ndo sau ddy kh6ng t6c diingvdi AgNo3 trong dung dich NH: dun n6ng?

A saccarozo B mantozo C gluro"ol D fructozo

Md it6160s A

nA tni thfr D4i hgc, thfng 5 n[m 2010, Phin chung cho tft ch c6.cthi sinh

Ciu 1 Ctro ngiyen tO X c6 tOrrg sO hat hong m$t nguydn tu bing 58 Menh dA nio sau d6y KHONG oung/

A, CAu hinh electron cria nguy6n t6 X 1A [Ar] 4s1.

B Nguy6n tii X li mQt kim 1o4i mAm, nhq vd nhiet d0 n6ng chiy thdp'

C Khi rhri miu nggn lfra vdi c6c hqp chit cria nguy€n X th6y nggn hia bi nhu0m miu tim

D Nguy6n tu cria nguy€n t6 X cO b6n kinhbd hon brin kfnh c6c nguy€n tu Cs vi Ca'

CiuZ.Cho c6c cflp nguy€n tii v6i cAu hinh electron h6a tri nhu sau :

C4p X : Xr: lAr]ai ua n, [Ar1 4s24ps Cap Y : Y,: [S] 3& 4s2 vi Yz: [{rJ 3ds +sl Cqp z: 21: [He] zsz zpz r'a zriFrl.l ir' 3pn 6ap T : Tr: 1s2 vi Tz: [He] zs22p5

Nh6n x6t nio sau AaV vd loai li6n ktit gita c6c nguy6n t6 trong mdi c6p KHONG ching :

a Cap X c6 li€n ktit ion B- C?p Y li li€n ktit kig loai

C C4pZc6 li€n ki5t cQng h6a d .n Cap T c6 li€n k6t cho - nhin

Ciu 3 Hda tan lL,Z gamtim toai M bing mgt luqng du dung dfch HCI thu dugc 4,48litkhf hiddro (do 0 dktc) Khi h6a tan mgt h6n hSp A chrla I l,2gankim loai M vd 69,6 gam oxit cria kim loai d6

iing rn6t toqre du dung dich HNO3 thi thu dugc s6n phAm khri duy nh6t cria HNO: li l&i NO c6 thii tich bing6,12lit (do d dktc) C+p kim loai M vd oxit li:

A Fe vd FerO+ B Fe vl FezO: C Fe vi FeO

Ciu 4 Mgnh dA nio sau cliy kh6ng dung?

A Cdn beng h6a hqc li cdn bdne dQng

B Tai tfroiliem cdn bing, ndng dg tdt cL cfuc chAt c6 hong h5n hqp khdng thay ddi theo thoi gian

C Trong nhtng diAu kigu nl6t eift, mQt phan rmg h6a hqc thufln nghich c6 thA xiy ra hofur todn

D SU chuy$n dich cdn Ua"g trOa hqc li sU ph6 vd' cdn bEng cfi vi chuy6n qua cdn bXng moi Ciu 5, Ngusi ta dn tr6n dung dich C cbta0,l mol Na*, 0,2 mol K*, 0,05 mol SO+2-, vd OH voi dung dich D chrla 0,05 mol Ba2*,0,2 mol K*, 0,1 mol Clvi HCO:- thi thu duo.c 200 ml dung dich E c6

pH (cho bitit ion COr2- d6 bi thriy ph6n trong dung dich)

A Beng 7 B > 7 C <7 D b5ng 12

Ciu 6 Cho tu tu dung dich chira 0,0150 mol HCI vio dung dich chfra x mol KzCOs thu dugc dung dich X (k!6ng cUria HCq vd giii ph6ng d,005 moi kAi COz N6u tni nghiQm fdn dugc tiiin hnnh n$rgc lai (cho tu tu dung dich KzCO: vio dung dich HCI) thi s6 mol khi COz thu ttugc bing

A 0,0050 mol B 0,00?5 mol C' 0,0100 mol D' 0,0150 mol Ciu 7 NhiQt phfin NI{4C1 th6y kh6i trang xuAt hign fi€n migng iSng nghiQm Kh6i hAng d6 li

A HCI B kfii NHr C M{4Cl D NII4OH

Cfiu 8 DAn 5 lit hdn hep }fii (do & dktc) gdm nito vd cacbonic lQi cham qua dung dich chri 0,02 mol Ca(OH)z ttrly c6 1 gam ttit tua the tich cria Nz vi COz trong hfin hqp ltuong ung h

D Cr vi CrzOr

A.4,328Lvd0,672L

C 3,500 L vi 1,500 L

Cflu 9 C6c menh dd sau ddy:

B 4,000 L vd 1,000 L D.0,672Lvd4,328L

(I) Cac nguyen tu lirm lỏt chi co tu I den J electron ngoal aung

(II) Tinh ch6t h6a hoc đc tnmg cria kim 1o4i la dnh khri

(i$ TAt circ cfucnguy€n ti5 nh6m B dAu Ii kim lopi

(nD T6t cd cilckim loai dAu din dign t(it vi đn nhiet dt

Cric m-6nh AA Aung n

-Ạ(r), (D, GiI) B.(I), (IID, (r\r)

c (0, (II), (m), (r\r) D (iI), (m), (rvl

Ciu 10 EiQn phdn (dung ttiQn cgc tro) dung dich mutii sunfat kim lopi v6i cudmg dQ đng diQn

bing 34 sau 1930 gidy thiy L&i5i luqng catot tEng 7,92 gam Xhi5i luqng axit sinh ra trong dung dich 1A :

4.2,94 gar:r B 1,96 gam C 5,88 gam D.3,92 gam

CAu 11 Khi tr0n dung dich chira 0,0075 mol NaHCO3 vdi dung dich chria 0,01 mol BăOlI)z thi

khtSi luqrng ttit tua thu ilugc bing

Ạ0,73875 gam 8.1,47750 gam C 1,97000 gam D 2,95500 gart

Ciul2 Otit ch6y hoin toln 1,5 gam mOt kim loai M thuqc phen nhdm chfnh nfif6 2 tuong kh0ng khi du thu rluọ c h5n hqp chdt rin X chrta oxit vi nitrua cria M Hba tan X vio nudc th6y X tan

hóAin todn vi thu cluọc dung dich Ỵ Thdi kfii COz vdo dung dich Y diSn du thu duọc 6,48 gam mu6i trong dr:ng dich M li

Ciu 13 Cho c6c phucmg hinh phan rmg h6a hqc:

(X) CăHCOr)z -+ CaCO: + HzO + COz

(Y) CaCOr + HzO + COz + CăHCO3)2

(T) CaCQ + Q -> CaO + COz ,

Cdc phan r?ng c6 tb6 sri dung dC gi6i thich sU hinh ttanh thach nhfl trong hang dQng vi sg xfltn thuc cria nu6c mua voi tl6 v6i li

Ciu 14 Menh dA sau dAy li KHONC dung ?

Ạ Thach cao dugc dung dC trQn voi clanhke trong sin xo5t *i m5ng, lim phdn viiit bang, b6

bQt kfii bi gey xucrng.

B B Cdng thric cria thpch cao sdng H CaSỢzHzO, th4ch cao nung li 2CaSỢHzO vi thchj cao kfian li CaSỢ

C Thach cao khan Oinh thinh bing c6ch nung th4ch cao sdng d 600"C) li ch6t tan kh6 ttit trongnudc vit4o sanphAmHthechcao sdng' \

D Thach cao nung k&i t6t hqp vdi nudc c6 s1r grdn ns th6 tich, rdt [n k*rudn, ndn dugc sri dung dC n[n tuqxg, dric c6c chi tilit trang tri nQi thAt.

Ciu 15 Hda tan hoAn toe,n 0,965 gam h5n hgrp A g6m Fe vi Al vio dung dich HNO3 du thu dugc

280 ml (do & dlctc) hdn hqp mi C gO- NO vd NzO c6 ti kfi6i so voi kfi6ng kni beag t,3241 Gin thiiit ring c6c phm rmg itAu xiy ra hodn toan Phin hem kfi6i luglrg sit tong h5n hgrp A

b6ng

Ạ29% 8.42% C 5e% D.87o/o

Ciu 16 Hda tan hodn todn 1,84 gam h5n hqp X g6m 2 kim loqi Mg, Fe trong dung dich HNO3 du th6y thodt ra 0,04 mol khi No duy nn6t iao d dkrc) s6 mol Fe vi Mg tan luqr tinl

Ctu 17 Oiit cnay hoin toin 224 mI (dktc) hidrocacbon thom X vn hdp thu hoin toin sdn phim ch6y

vio mdt lugng du dung dfch nu6c v6i trong thi th6y xu6t hiqn 10 gam t6t tua vi L:hiii luqng dung dlch giAm 4,88 gam X KHONG phdi li chAt dugc ktit tuan nhu sau:

A X D chdt rin mdu tring, *!6ng tan trong nu6c vi dE bi thang noa

B monoclo hoa X chi thu 6ugc 2 sin phdm monoclo ddng phdn

C Khi c6 niken lim xric tilc, I mol X c6 th6 c6ng vdi 3 mol Hz hoflc 6 mol Hz.

D X lim m6t meu nu6c brom

Ciu 18 Cho 0,5 lit h6n hqp g6m m$t hidrocacbon vi ktrf cacbonic kQn v6i 2,5hitoxi (du) rOl A6t cnay hodn toin th6 UcU cria hdn hgp sau khi dlSt ie 3,4 lit Cho hdn hqp qua thi6t bi ldm lanh, th6 tfch hdn hqp khi chi cdn 1,8 lft Cho hdn hqp lQi qua dung dich KOH du thi chi cdn 0,5 lft lfii Cho reng th6 tich c6c khi dAu duoc do o cirng diAu kien Hidrocacbon dd dung li

Cfiu 19 DEy c6c ctr6t dAu t6c dUng duo c voi phenol li

A Na, dung dichNaOH, COz B Dung dlchNaOH, nudc brom, bari kim 1o4i

C dung dich HCl, Na, dung dichNaOH D C2H5OH, Na2CO3, nudc brom

Cffu 20 Eehidrat h6a mQt ancol bfc 2 A thu duo c olefin Ley 3 gam A cho t6c dlmg vdi Na du thu dugc 0,56 lit hidio (do e dktc) Khi dun A vsi H2SOacl[c d 130oC thi sdn phAm thu ttugc li

A propen B tliisopropyl ete C buten-2 D disec-butyl ete

CAu 21 Hqp ch6t htu co X t6c dung ttugc voi Na2CO3, nhrmg l&6ng tpo ra CO2 Khi cho X tic fung voi natri thi s5 mol H2 sinh ra bing s5 mol X Khi cho X t6c .{qng vtli dung dich NaOH, ,5 orol NaOH phin ring cfing beng s6 mol X X ld

A 0,01 mol vd 0,01 mol

C 0,03 mol vi 0,02 mol

A C6II4(O}I)2

C" HOCH2CcFI+OH

8.0,02 mol vd 0,03 mol

D 0,03 mol vi 0,03 mol

B HOC6II4COOH

D CcIIa(COOII)z Ciu 22 Cho c6ng thric phin tu CilioOz iJng vrfi c6ng thirc phen ffi nay c6 x ti6ng phAn lim qu) tim

h6a, it6; y d6ng phAn tic dung dugc vdi NaOH, z ddng phdn vira t6c dqng duo c vdi dung dfch NaOI{ vira tdc dgng duo.c vfi dung dich AgNO:A.IH3 vd t ddng phAn vira kic dgng dugc vfi Na, vira t6c dpng tluqc voi dung dich AgNO3A{H3 gi6 fi nio cho dudi dny li dung

4.4 B.y:3

Ciu 23 C6ng thric phdn tu nao duoi

Cu(OH)2AIaOH tao ki5t ma CuzO?

Ciu24 Trong c6c c[p chdt sau, cflp chdt ndo c6 tinh axit t[ng tu kai sang phii

A HCOOH vd CHgCOOH B CICH2COOH vi BTCHzCOOH

C CH:CHzCOOH vi CHz=g1t-aOO" D CI2CHCOOH vi CICH2COOH

Ciu 25 Phan rmg thriy ph6n este hong m6i truory axit ve mdi trudmg kidm c6 diiim gir5ng nhau lA

A dAu h phin img thuin nghich B hiQu su6t phan rmg bing nhau

C d€u li ph6n rmg cria este vdi nu6c D hinh thinh c6c lo4i san ph*n gi5ng nhau

diy ld, c6ng thirc cria hai este d6ng ph6n, t6c dpng duo c voi