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(Thi sinh khong daqc sa dryng tdi li€u)
Hg, t€n thi sinh:... _Mfr_s5:

chobi6tnguyonttkh6i ctacircnguy6nt6: H:1;Hs:4;c= _t2;N:14;_o:t6;_{Na:23:Mg=24:Al:}
27;$:32;Cl:35,5;K:39; _{Ca:40;Cr=52;Mn=55;Fe:56;}_{Cu:64;Zn:65;8r:g0;Ag=} _t0g;_86:

137.

C6c th6 tich khi cl6u tto o di6u ki6n ti6u chuAn, gi6 thiiSt cdc khi sinh ra kh6ng tan trong nu6c

Ciu l: Cho vdi mAu nh6 canxi _{cacbua vdo 6ng nghiQm dd c6}_s6n₁_ml_nu6c_{vd day nhanh}_bing_nrit_c6
6ng ddn khi, sau ph6n img c6 khi X sinh ra. Khi X ld

A. Etilen. B. Etan. C. Axetilen. D. Metan.

Ciro 2: Ch6t x dugc t4o thdnh trong cdy xanh nho qu6 trinh quang hqp. X kh6ng tan trong nu6c lanh
nhung tan trong nu6c n6ng tao dung dich keo. Thriy phdn X nho xric tric axit ho6c enzim,thu auqc ch6t
Y. oxi h6a Y bdng dung dich AgNo:A.{H: du thu ouqc ct6t hiru ccy z. chhi;;2 6, lu",

A. Tinh b6t, axit gluconic. _{B. Tinh}_{b6t, amoni gluconat.}
C. Xenlulozo, axit gluconic. _D._Xenlulo_ro,u _oiigluconat.
Cf,u 3: Dung dfch ch6t ndo sau d6y hoa tan duoc Al2O3?

Ạ KNO3. B. KOH. C. K:SỢ _{D, KCL}

CAu 4: Natri hidrocacbonat _{duoc dung trong}_y_{hoc, cdng}_nghe_thuc_ph6m,_{ch6 tao nuoc}_gidi
khrit...COng thric h6a hoc cria natri hidrocacbonat ld

A. NaHCOr. B. NaOH. _C.Na2CO3. _D._NaNO:.

Ciu 5: C6ng thric cira tristearin ld

C. E.. b6o vQ vo tiu bi6n ldm bdng thdp, ngudi ta gin vdo mdt ngodi vo tiru phAn chim du6i nu6c
nhfrng t6m k6m

D. Trong tu nhi6n, c6c kim lo4i ki6m chi t6n tpi o d4ng hqp ch6t.

TRIION _B6N EE THI rH(} 16r_vr6u_rnr TIIPT _H8CN HqC 2020

Thdi _{gian ldm bdi:}50 philt;
(40 cdu trdc nghiQm)

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Ciu 12: Kim lopi nlro sau ddy c6 tinh khir mAnh ntrAtZ

A. Al. B. Me. C' Na' D' Fe'

c6u 13: Cho X ld mQt hqp ch6t

"iru ,at c6 dpc diem ld

kh tan vdo dung dich HzSOa loang du thi t}o ra

;"*fu-r. 3i3;;""g dich Y vtra c6 khn nang hda tan Cu, vria c6 kh7 ning ldm m6t mau dung dich
KMnỢ X ld

A" FezO: ho4c Fe:Ợ B' FeÓ

C. Fezor. D' Ferớ

Ca" ra, it 6t

"o ttr6 tam m6m c6

khi phin img xiy ia hol todn thu duoc 6,48 gam Ag' Gi6 tricua m lir

A.5,4. 8.27,0. c' 1o'8'
Cflu 20: Ph6t biOu nho sau dAY dring?

A. Alanin t6c dung v6i nu6c brdm tao k6t tua tring'

B. Thiry phdn hodn tohn anbumin thu dugc h5n hqp o-aminoaxit'

du dung dich AgNOy'I'IH:. Sat

D.54,0.

C. Phdn tu Gly-Ala-Val ld dipeptit'

D. Etylamin li chAt khi, c6 miri khai it tan trong nuoc'

Iuoc diAu ch6 bing phin

cfru2l:cho c6c loai to sau: nitron, visco, xenlulozo axetat, nilon - 6,6' 56 to c

img trung hqp ld

A. 1. 8.2. c' 3' D' 4'

Ciu2}zsonnomhidroxylGoH)trongph6nttrglucozod4ngm4chhdld

A. 3. B.4. c' 6' D' 5'

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A. CoHsOH. B. CH:COOH. c. (CH3)2NH. D. HNCHzCOOH.

Ciu Z9z DAn V lit h6n hqp kf.ri g6m CO.vd.Hz di qua lucrng du FezOr,.CuO nung n6ng. Sau khi c6c
ph6n img xhy rahodLn todn, t<trOi tuqng chdtrin gittm6,4 gam so v6i ban dAu. Gi6 trf ctra V (dktc) ld

A.8,96. 8.4,48. c.3,36. D.2,24.

Cflu 30: Lysin co c6ng thric ndo sau d6y?

A. H2N-[CHz]+-CH(I'{H2)-COOH. B' HN-CHz-COOH'

C. CH3-aH6NHry-COoU. D. HOOC-[CHz]z-CH(NH2)-COOH.

Cffu 3l: Khi thuy ph6n hodn toin 65 gam mQt peptit X thu d:ugc 22,25 gam alanin vd 56,25 gam glyxin.

xla

A. tripeptit. B. dipeptit. C. pentapeptit. D. tetrapeptit"

Ciu 32: Ch6t X (CsHr+ON2) ld mu6i amoni cira mQt o-amino axit; ch6t Y (CzHroOaNa, mQch h0) le
-rai ,**i .t u ,rip.ptit. cho m gam h6n hqp E g6m { _"*v t6c dgng trtit voj lugng du NaoH thu

il;;ffi#H;;-ea* rr"i"rii, _""ia abnsoE"e rc ticp nhau trong ddy d6ng ding c6 ti kh6i so

,Oi n, bang 19 vit 4,02 _famhai mu6i. Gi6 tri cira m gAn ntr6t vdi gi6 tri ndo dudi ddy?

A.4,2. B.4,0. c.3,2. D' 3,5'

CAu 33: H6n hqp E g6m hai este dcrn chfc, ld d6ng phdn c6u t4o vir d6u chira vong benzen. oot chay

i.j frong qu7 trinh diq;phan dung dich NaCl, catot x6y ta qudtrinh khu ion Na*.
ial ffqp tim ctra nh6m nhg, bAn trong kh6ng khi vd nu6c.

(e) DO thanh s6t trong kh6ng khi 6m c6 xdy ra dn mon diQn h6a'

SO ph6t birSu dring ld

A.4. B. 5. c.2. D' 3'

Ciu 36: Thiry phdn hodn todn cfr6t triru ccr E mach ho bing dung dich NaOH, thu dugc 4 sdn phAm hffu

coX,Y,Z,Td6uc62nguyOnttrcacbontrongphintil(N&,M">M7]Mr).gi6tpt6cdpngviradir

v6i NaOH theo ti lq 1 : 3, va oxi h6a kh6ng hoan todn ZhoQcT d6u c6 the thu dugc axit axetic.
Cho c6c ph6t bitiu sau:

(a) T6ng s6 nguyOn tir trong mQt phdn tu E bing 24.
(b) EOt ch6y hodn toirn X kh6ng.thu duoc HzO.

t"j O Oia, f.i6n thulng, z A ciatl6ng con T ld ch6t khi vd dAu tan ratdttrong nu6c.

(d) Trong Y c6 3 nguy0n tt oxi'
Sd ph6t bi6u dung ld

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

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.+

Cffu 37: Cho hidrocacbon X m4ch h6, la cn6t mri o di6u kiQn thucrng ph?n img hoan todn v6i H2 du,
Ni t0 thu dugc CH:-CHz-CHz-CH3. 56 c6ng thric c6u t4o cira X thoa m6n di6u kign ld

luqng h6n hqp X

"A".rou dir 1,785 mol bz, thu dugc 1,28 mol COz vd

1,15 mol HzO. Mat kh6c, cho
Zg,gi gam X trOn t6c dpng t6i da v6i x mol Br2 trong dung dich. Giri tri cira x lir

A.0,130. B. 0,180. c. 0,135. D.0,090'

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