CHEMISTRY LEARNING CHECK
MCQ
Chemistry ( Second Paper)
ZworØv‡ii 1. wewfbœ ZworØv‡ii
wefe wb¤œ iæc:
Cu/Cu2+ ; E0=-0.34V , Zn/Zn 2+ ; E0=+0.76V, Fe/Fe 2+ ; E0=-+0.44V wb‡Pi
avZz¸‡jv ¸‡jv nvB‡Wª v‡Rb‡K cÖ wZ¯’vwcZ K‡i? i. Cu ii. Zn
†Kvb
iii. Fe
(a)i (b) I,ii (c) ii,iii (d) I,ii and iii 2. evqy gÛ‡j 3. iK
†Kvb wbw®Œq M¨vmwUi cwigvY †ewk ? (a) He (b) Ne (c) Ar (d) Kr
më bv‡g cwiwPZ †KvbwU ?
4. ‡MŠY
†Kvl †KvbwU ?
(a) NaCl (b) KCl (c) CaCl2 (d) AlCl3
(a) Daniel cell (b) Dry cell (c) Lead cell (d) Leclance cell cell
5. ‡KvbwU
RviK I weRviK Dfq wn‡m‡e wµqv Ki‡Z cv‡i? Ki‡Z cv‡i? (a) Na+
6. hvwš¿ K
c×wZ‡Z avZz i ÿq‡K Kx e‡j ?(a)Corrosion (b)Erosion (c)Galvanizing (d) Cohesion
7. 5g cvwb‡Z
2+
(b) H2O (c) H2S (d) Fe .
Aw·‡Rb cigvYy i msL¨v KZ ? 23
23
23
23
(a) 1.573x10 (b) 1.673x10 (c) 3.346x10 ( d) 6.02x10
cv‡Î Zvgvi `ª eb i vLv hvq bv KviY - i. Cu2+ weRvwiZ nq
8. `¯Í vi
iii. Zn Gi 9. w¯’ i
RviY wefe Kcvi A‡cÿv †ewk ; ‡KvbwU mwVK ?
ii.Zn A¨v‡bvW
wn‡m‡e KvR K‡i
(a) I,ii (b) i,iii (c) ii,Iii (d) I,ii and iii
ZvcgvÎvq x bvgK M¨v‡mi Zz jbvq wg‡_‡bi e¨vcb nvi wظY n‡j x Gi AvYweK fi KZ? (a) 64 (b) 32 (c) 16 (d) 8.
10. 250 mL 0.1M Na2CO3 `ª eY
ˆZwi Ki‡Z KZ MÖ vg Na2CO3 jvM‡e ?
(a) 2.65 (b) 2.86 (c) 26.5 (d) 30.9. 11. STP ‡ 432gHgO DËß Z 432gHgO 12. eª vB‡bi
Ki‡j KZ L Aw·‡Rb cvIqv hv‡e? (a) 11.2 (b) 22.4 (b) 27.5 (d) 32
Zworwe‡kø l‡Y K¨v‡_v‡W Kx cvIqv hv‡e? (a) Na (b) Cl (c) (c) Cu
(d) H.
wb‡Pi Aby ‡”Q`wU Aby mv‡i 12 I 13 bs cÖ ‡kœi DËi `vI:
Mg, Zn, Al and Fe Gi 13. ‡KvbwU
_g 14. cÖ_g
cÖ gvY weRviY wefe h_vµ‡g -2.37V,-0.76V, -2.37V,-0.76V, - 1.66V I- 0.44V .
A¨v‡bvW n‡e? (a) Mg (b) Zn (c) Al ( d) d ) Fe
`y wU avZz Øviv Øviv MwVZ †Kv‡li wefe KZ n‡e? (a) 1.61
15. STP ‡Z 1 wg.wj. A¨v‡gvwbqv‡Z cÖ vß 12
(a) 1.7x 10 16. cÖ gvY
13
(b) 1.22 (c) 0 (d) -3.13
AYy i msL¨v KZ? 16
(b) 2.7x 10 (c) 3.9x 10
19
(d) 2.7x 10
weRviK c`v‡_© i mvnv‡h¨ Av‡qvwW‡bi cwigvY wbY©‡qi c×wZ‡K....e‡j|
(a) Av‡qvwWwgwZ (b) (b) Av‡qv‡WvwgwZ (c) (c) RviY (d) (d) cÖkgb . .
BIPLOB KUMER DEB, NOTRE DAME COLLEGE,DHAKA. (01711220991)
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CHEMISTRY LEARNING CHECK 17. Zworwe‡kø lY
Rgv n‡e?
MCQ
cÖ wµqvq A¨vjy wgwbqv‡gi je‡Y KZ d¨vivW we`¨yr Pvjbv Ki‡j 1 †gvj A¨vjy wgwbqvg (a) 1 (b) 2 (c) 3 (d) 5.
(18) wd« ‡Wj µvdU wewµqvi cÖc fveK Ö †KvbwU? (K) FeCl3 (L) ZnCl2 (M) AlCl3 (N) MgCl2 (19) ‡K¬ v‡ivdg© mbv³KiY mbv³KiY nq †Kvb wewµqvq?
(K) †Kve wewµqvq
(L) K¨vwbRv‡iv wewµqvq
(M) Kvwe© j A¨vwgb
(N) Kvcwjs wewµqvq
(20) my lg eÜb wefvRb Kx Drcv`b K‡i? (K) gy ³g~ jK (L) Kv‡e© vK¨v Uvqb (M) Kve© vbvqb (N) gy ³‡Rvo B‡jKUª b cÖ RvwZ (21) wb‡gœ i †Kvb A¨vjKvBj n¨vjvB WwU S N1 †KŠkj Aby miY K‡i? (K) CH3 – X X (L) (CH3)2 CHX (M) (CH3)2 C – X X (N) CH3 – CH CH2 – X X (22) wb‡gœ i †KvbwU †K›`ª Kl© x weKviK? (K) NO 2 (L) Br + (M) NH3 (N) BF3 3 (23) wb‡Pi †KvbwU‡Z sp msKiY Av‡Q? (L) B_vBb (K) †ebwRb (M) B_vb¨vj (N) †cÖ v‡cb (24) AcÖ wZmg †hŠM †KvbwU? †KvbwU? (i) weDwUb-1 (i i) weDwUb-2 (i i i) ‡cbwUb -2 -2 (K) i I i i (L ) (L ) i i I i i i (M ) (M ) i I i i i (N) i, i i I i i i (25) CH3MgCl I CH3COCH3 Gi wewµqvq Drcbœ nq nq †KvbwU? (K) CH3CH(OH)CH3 (L) CH3CH2CH2OH (M) CH3COCH3 (N) (CH3)3 C-OH (26) wb ‡Pi †KvbwU Kv‡e© vwbqvg Avq‡bi mwVK ¯’ vwq‡Z¡ i µg? 0 0 0 0 (K) 3 > 2 > 1 (L) 1 > 20 > 30 (M) 20 > 10 > 30 (N) 30 > 10 > 20 (27) ‡KvbwU wMÖMbvW© MbvW© weKvi‡Ki ms‡KZ? (K) Ar-X (L) R Mg X (M) R – X (N) R – I X I (28) A¨vivBj †K¬ vivB‡Wi Av`ª © we‡k we‡k - l‡Yi gva¨‡g †dbj ˆZixi ˆZixi c×wZ‡K Kx e‡j? (K) ¯úk© c×wZ (L) WvI c×wZ (M) AmIqvW© (N) DU© m c×wZ (29) Mvp HCl G `ª exf~ Z Abv`ª © ZnCl2 Gi `ª eY‡K Kx e‡j? (K) U‡jb weKviK (L) jy Kvm weKviK (M) †bm jvi `ª eY (N) †d nwjs `ª eY
’ i ù’ UbvsK ii) ’ i MjbvsK iii) ii) wm iii) Av‡cw (30) KwVb c`v‡_© i wek~ ×Zv wbiæcb Kiv nq - i) wm ÿK ¸iæZ¡ Øviv Øviv ; ‡KvbwU
31|
mwVK?
CH
A)i b) ii c) iii d) ii and iii
CO N
CH 3
†hŠMwUi bvg Kx?
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CHEMISTRY LEARNING CHECK
MCQ
wdwUM wewµqvq cÖavb Drcv`b wn‡m‡e †KvbwU cvIqv hvq? 32| DU© R wdwUM K) B‡_b L) †ebwRb M) Ujy Bb N) b¨vd_vwjb 33| †ebwRb P‡µ †KvbwU A‡_© v -c¨viv wb‡`© kK? K) NO2 L) NH 2 M) COOH N) SO3 H Kve©w·‡jkb wewµqvq wb‡Pi †KvbwU ˆZwi nq? 34| wW- Kve© L) A¨vj‡Kb M) A¨vjwKb N) A¨vj‡Kvnj K) GwmW 35| †KvbwU I‡RvbvBW MVb K‡i bv? K) †ebwRb N) mvB‡K¬ v‡n‡·b L) Bw_b M) B_vBb 36| wb‡gœi †KvbwU U‡jb weKvi‡Ki mv‡_ Aat‡¶c †`q K) CH 3 CO2 H L) HCO2 H M) (CH 3CO)2 O N) C 2 H 5CO2 H † gUv wb‡`©kK g~jK? 37| †KvbwU †gUv K) NO2 L) OH M) CH 3 N) NH 2 agx© †KvbwU? K) n weD‡Ub L) AvB‡mvweD‡Ub 38| A¤øagx© M) weDwUb-1 N) weDUvBb-1 COOR Kvh© Kix g~ jKwU †Kvb mg‡MvÎxq †kª Yxi? Yxi? 39. – COOR (K) B_vi (L) GwmW (M) G÷vi (N) Kvew·© wjK GwmW 40. wb‡gœ i †KvbwU Av‡jvK mwµq †hŠM? (K) CH4 (L) CHCl3 (M) CCl4 (N) CH3CH(OH)COOH CO – NH NH2 Gw U wK ai‡bi †hŠM? (41) NH2 – CO (K) GwmW (L) A¨vjwWnvBW (M) A¨vwgb (N) A¨vgvBW Kve©b eÜb ˆ`N© ¨ n‡e (42) ‡ebwRb P‡µ Kve©b - Kve© (K) 0.154 nm (L) 0.133 nm (M) 0.120 nm (N) 0.139.nm (43) wb‡gœ i †Kvb †hŠMwU R¨vwgwZK mgvby Zv cÖ `k© b K‡i? CH (OH)COOH (L) C6H5CH = CH – CO CO2H (K) CH3 – CH (M) (CH3)2 C = C (CH 3)2 (N) CH3 – C C C – CH CH3 ‡dnwjs `ª eY ii. U‡jb U‡jb weKviK iii. ‡mv‡qURvi ‡mv‡qURvi 44. A¨vjwWnvBW g~ jK mbv³Ki‡Y e¨eüZ weKviK - i. ‡dnwjs weKviK ; Dc‡ii †KvbwU mwVK? K) i L) i i M) i i i N) I, i i n‡jv -i) B‡j±ªY NvUwZhy ³ ii) welg eÜb wefvR‡b we fvR‡b m„ ó iii) mshy³ A¨vjKvBj MÖ æc Gi 45. Kve© vbvqb e„ wׇZ Gi m’ vwqZ¡ ev‡o; ev‡o; †KvbwU mwVK? a) I b) ii c) ii and a nd I d ) I,ii and iii WvB wg_vBj †ebwRb †KvbwU? A) TNT b) Xylene c) Westracol d) Picric acid ≡
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CHEMISTRY LEARNING CHECK
MCQ
48. CH3CH2CH2CH3 I CH3CH(CH3)CH3 ci¯ú‡ii - mgvY~| ’ vb c) Av‡jvK d) A) wkKj b) Aem d) R¨vwgwZK CHCl=C(CH 3)Cl GKwU ˆRe †hŠM . 49. ‡hŠMwUi IUPAC bvg -a) 1,2-dichloropropene b) 2,3-dichloropropene c) 1,2-dichloro-2-methylethene d) dichloropropene
†`Lv‡e? 50. ‡hŠMwU †Kvb cÖ K… wZi wÎgvwÎK mgvYy †`Lv‡e? a) MvVwbK b) U‡UvgvwiZv c) R¨vwgwZK d) Av‡jvK `ª eY‡K weRvwiZ K‡i? 51. wb‡gœ i †Kvb †hŠMwU †dnwjs `ª eY‡K (K) C6H5-CHO (L) CH3 - COOH (M) H-COOH (N) CH3-COOH 52. DËß Ae¯’vq †ebwRb Wvqv‡Rvwbqvg †K¬ vivBW `ª eY Kx Drcbœ K‡i K‡i K) bvB‡Uª vmv wdbvBj L) †dbj M) bvB‡Uª v‡ewRb N) Ujy Bb ’ vb c) Av‡jvK d) 53. CH3CH(OH)CH2CH3ICH3CH2CH2CH2OHci¯ú‡ii -mgvY~ -mgvY~|A) wkKj wkKj b) Aem R¨vwgwZK b) Aem c) Av‡jvK d) R¨vwgwZK 54. jy Kvm weKvi‡Ki mv‡_ †KvbwU `ª æZ mv`v Aa:‡ ÿ c ˆZwi K‡i ? - i) Primary alcohol ii) Ethanol iii) tertiary butylalcohol; ‡KvbwU mwVK?a) I b) ii c) I,ii d) I,iii 0
MbvW© weKviK weKviK I wg_vb¨v‡ji wewµqvq Drcbœ nq nq - (i) 1 55. wMÖMbvW©
A¨vj‡Kvnj (ii) 20 A¨vj‡Kvnj
(iii) 30 A¨vj‡Kvnj; wb‡Pi †KvbwU mwVK? (K) i (L) ii (M) i I ii
(N) i, ii, I iii
56. wg_vBj A¨vwg‡bi mv‡_ bvBUª vm Gwm‡Wi wewµqv Ki‡j wK Drcbœ nq? nq?
(K) CH3OH (L) HCOOH (M) CH4
(N) CO2 + H2
KBr H 2O. A n‡jv 57. R CONH 2 Br 2 KOH A K 2CO3 KBr
L) A¨vjwWnvBW M) A¨vwgb K) wK‡Uvb N) A¨vj‡Kvnj 58. Gj‡Kvn‡ji mv‡_ Kve© w·wjK Gwm‡Wi wewµqvq wewµqvq Drcbœ nq nq - K) G÷vi L) Gj‡Kvnj M) GjwKb N) B_vi 59. wb‡Pi †KvbwU 30 A¨vwgb? K)CH3 NHCH3 L) CH3CH2 NH2 M) C6H5 N(CH3) 2 N) C6H5 NHCH3 60. †cÖ vcvb¨vgvBW‡K nd¨gvb ¶z `ª KiY Ki‡j cÖavb avb Drcv` wnmv‡e wK cvIqv hvq? K) B_vBj A¨vj‡Kvnj L) †cÖ vcvbj M) †cÖ vcvBj A¨vwgb N) B_vBj A¨vwgb
CH3 NH2+ CHCl3+3KOH→X+3KCl+3H2O
61. X bvgK †hŠMwUi ms‡KZ M) CH3CN ms‡KZ nj - K) CH3OH L) CH3 NC 62. X bvgK †hŠM‡K ﮋ B_v‡i B_v‡i LiAlH4 Øviv weRvi‡Y †KvbwU Drcbœ Drcbœ nq? nq? K) CH3 NHCH3 L) CH3CH2 NH2 M) CH3CH2OH N) CH3 NH2 63. A¨vj‡Kvn‡ji Rvi Y cÖ wµqvq RviK wn‡m‡e e¨ eüZ nq|
N) CH3 NHCI
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CHEMISTRY LEARNING CHECK
MCQ
65| Rxe‡bi g~ j wfwË †KvbwU?
K) †cÖ vwUb
L) A¨vgvB‡bv GwmW
M) GbRvBg
N) wbDwK¬ wqK GwmW
Av‡qwW‡bi mv‡_ bxj eY© m„m„ wó K‡i? 66| wb‡Pi †Kvb †hŠMwU Av‡qwW‡bi K) †mjy ‡jvR
L) A¨vwg‡bv GwmW
M) A¨vgvB‡jvR
N) A¨vgvB‡jv †cKwUb
67| †KvbwU wf‡bMvi wn‡m‡e e¨eüZ nq?
L) B_vbj M) †ebRwqK GwmW
K) diwgK GwmW
N) B_vbwqK GwmW
68| †KvbwU cvB‡ivwjMbvm Gwm‡Wi Dcv`vb? K) B_vbj
L) B_vbwqK GwmWM) wg_vbj
N) wg_vb¨vj
69| HCOOH HCOOH †hŠMwU wewµqv K‡i NaHCO3 `ªe‡bi mv‡_ i. NaHCO ii. ‡dwjs `ª e‡Yi mv‡_
†KvbwU mwVK? K) ii L) i I iii iii. U‡jb weKvi‡Ki mv‡_ ; wb‡Pi †KvbwU
M) ii I iii
N) i, ii I ii
`ª eY n‡jv 70| A¨vgvB‡bv Gwm‡Wi Rjxq `ª eY agx© i. A¤øagx© x ii. ¶viag© iii. wbi‡c¶ ;
wb‡Pi †KvbwU mwVK? K) ii
L) i I iii
M) iii N) i, ii I iii
71| cvKv Kgjvq we`¨gvb G÷vi †KvbwU? K) C 3 H 7COOC 2 H 5
L) CH 3COOC 8 H 17
M) C 3 H 7COOC 4 H 9 N) CH 3COOC 5 H 11
72| wb‡Ri †Kvb GwmWwUi mwµqZv me‡P‡q †ekx? K) H COOH
L) CH 3 COOH
CCl l 3 COOH M) ClCH 2 COOH N) CC
73| ˆRe GwmW n‡Z A¨vbnvBWªvBW ˆZwi‡Z †KvbwU e¨eüZ nq? K) H 2 SO4
L) CaCl 2
M) P O 2
N) CaO
5
74| ÷v‡P© i g‡bvgvi †KvbwU? K) D yMø ‡KvR
L) D yMø ‡KvR
M) L - yMø ‡KvR N) D yMø ‡KvR
Am¤ú„ ³ d¨vwU Gwm‡Wi G÷vi? K) Pwe© 75| wb‡Pi †KvbwU Am¤ú„ ³ Kve© w·‡jkb wewµqvq wb‡Pi †KvbwU ˆZwi nq? 76| wW- Kve©
L) ˆZj
M) wN
N) gvLb
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CHEMISTRY LEARNING CHECK
MCQ
R‡b¨ myMwÜ MwÜ nq? 78| cvKv dj wb‡gœi †Kvb Dcv`v‡bi Dcw¯’ wZi K) A¨vj‡Kvnj
L) G÷vi
79| yMø ‡KvR imvqb
D
M) wfUvwgb
N) B_vi
n‡jv -
K) 3 bs Kve©‡bi
g~ jK Wv‡b OH g~
L) 5 bs Kve© ‡bi
g~ jK ev‡g OH g~
M) 5 bs Kve© ‡bi
g~ jK Wv‡b OH g~
N) 3 bs Kve© ‡bi
g~ jK ev‡g OH g~
80| wb‡gœ i †Kvb †hŠMwU weRviK wn‡m‡e KvR K‡i K) CH 3OH
L) CH 3COOH
M) HCOOH
N) C 6 H 5OH
81| K¨vjwmqvg B_v‡bv‡qU‡K DËß Ki‡j Kx cvIqv hv‡e? K) digvjwWnvBW L) B_vb¨vj
M) B_v‡bvwqK GwmW
N) A¨vwm‡Uvb
nq - (i) 10 A¨vj‡Kvnj (ii) 20 A¨vj‡Kvnj 82| RMgX I HCHO Gi wewµqvq Drcbœ nq j‡Kvnj; wb‡Pi †KvbwU mwVK? (iii) 30 A¨v (K) i (L) ii (M) i I ii (N) i, ii, I iii 83| wb‡Pi †KvbwU welg PvwµK A¨vwj‡dwUK †hŠM? (K) wdDivb (L) wcwiwWb (M)_v‡qvwdb (N) Bw_wjb A·vBW 84| C6H4(OH)2 Gi KqwU mgvby K m¤¢ e? (K) 5wU (L) 4wU (M) 3wU (N) 2wU 85| ‡ebwRb ejq wbw®ŒqKvix g~ jK †KvbwU? (K) -OH (L) – NO2 (M) – CH CH3 (N) – NH2 86| A¨vj‡Kvnjxq g~ jK mbv³Ki‡Y e¨eüZ nq (K) wjUgvm (L) 5% NaHCO3 `ª eY (M) 2,4 DNP (N) jy Kvm weKviK 87| jy Kvm weKviK n‡”Q (K) SnCl2 + HCl (L) AlCl3 + HCl (M) PCl3 + HCl (N) ZnCl2 + HCl 88. CH3CH2CH2OH I CH3CH(OH)CH3 ci¯ú‡ii - mgvY~| ’ vb c) Av‡jvK d) A) wkKj b) Aem d) R¨vwgwZK M) Kve© vbvqb N) gy³ †Rvo B‡j±ªY Y 89. my lg eÜb wefvRb Kx ˆZwi K‡i? K) gy ³ gy jK L) Kv‡e© Vk¨vUvqb 90.wb‡¤œi †KvbwU †K›`ª vKlx© weKviK? K) NO2+ L) Br + M) NH3 N ) BF3 1 91.SN wewµqvq avc KqwU? K) 1 L) 2 M) 3 N ) 4
xb nvDm M¨vm bq †KvbwU? K) CFC L) CO M) CH4 N ) H2O 92. MÖ 93. CH3C(CH3)2CH=CHCH3 ‡hŠMwUi bvg Kx? a) 4,4-dimethylpentene-2 b) 2,2-dimethylpentene-4
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CHEMISTRY LEARNING CHECK
MCQ
95.Freon-12 is- a) CFCl3 b) CF2Cl2 c) CF3Cl d) CHFCl2 96. ‡KvbwUi †ÿ‡Î †gUvgvwiRg m¤¢ e? a)CH3CH=CHCH3 b) CH3CH2OCH2CH3 c) CH3CH2CH2CHO d) CH3CH2CH2COOH
i ùz UbvsK AwaK? a) CH3CH2CH3 b) CH3CH2CHO 97. ‡KvbwU c) CH3CH2COOH d) CH3CH2CH2OH 98.
‰Re †hŠ‡M Kve© w·wjK GwmW g~ jK mbv³Ki‡Y e¨eüZ weKviK
a) NaOH b) NaHCO3 c) Br 2
solution d) 2,4-DNPH 99.
‡K›`ªvKlx© ms‡hvRb ms‡hvRb wewµqv †KvbwUi ˆewkó¨c~Y©Y wewµqv © wewµqv ? – a) Alkene b) Carbonyl compound c) RX d) Organic acid
GwmW‡K A¨vj‡Kvn‡j cwiYZ K‡i? – 100. ‡Kvb weRviK Kve© w·wjK a) LiAlH4 b) H2,Ni c) Zn+HCl d) Na, C2H5OH 101. ‡KvbwU R¡ i I e¨v_v wbeviK?- i) Aspirin ii) Hexamine iii) Paracetamol; †KvbwU mwVK ? a) I,ii b) ii,iii c) iii,i d) I,ii and iii
102. wb‡Pi †KvbwU GKB mv‡_ GwmW I weRviK?a) HCOOH b) CH3COOH c) CH3CHO d) C6H5COOH
103. A±vBj Gwm‡UU G÷vi †Kvb d‡j cvIqv hvq ? – a) Banana b) Apple c) Orange d) Mango
jKwU AMÖMY¨? MY¨?- a) -CHO b) –NH2 c) -OH d) -COOH 104. ‰Re †hŠ‡Mi bvgKi‡Y wb‡Pi †Kvb Kvh© Kixg~ 105. U‡jb weKvi‡Ki mv‡_ A¨vjwWnvB‡Wi wewµqvq †Kvb avZz i Aat‡ÿc c‡o? a) Na b) Cu c) Ag d) Zn
106. e¨v‡KjvBU Gi g‡bvgvi n‡jv -a) HCHO+Phenol b) Ethanol+Ethene c) HCHO + NH3 d) Ethanal+ Hexene
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CHEMISTRY LEARNING CHECK
MCQ
113. ‡KvbwU WvBm¨vKvivBW? a) ribose b) glucose c) Moltose d) Starch
Kve© vB‡Wi mv‡_ cvwbi wewµqvq Kx ˆZwi nq? 114. Kÿ ZvcgvÎvq K¨vjwmqvg Kve© A) Ethane b) Ethyne c) Ethene d) Chloroform
115. ‰Re †hŠ‡Mi Am¤ú„ ³Zv wbY© q Kiv nq †Kvb wewµqv Øviv ? (a) Bayer
(b) Coupling
(c) Litmas
(d) Mirror test
‡gjvgvB‡bi ms‡KZ ms‡KZ †KvbwU? 116. ‡gjvgvB‡bi a) C4H6N6 b) C3H6N6 c) C3H6N5 d) C4H6N5
‡jmvBb cixÿvq †Kvb avZz e¨eüZ e¨eüZ nq? A) Cu 117. ‡jmvBb
b) Zn c) c) Sn d) Na
A¨vwmwUwjb n‡Z wc.wf.wm. ˆZwi‡Z †Kvb †Kvb cÖ fveK e¨eüZ nq?118. A¨vwmwUwjb a) CCl4 b) HgCl2 c) FeCl3
d) TiCl3
119. 0.1M NbgvÎvi 100 mL `ª e‡Y KZ †gvj c`v_© we`¨gvb? we`¨gvb? (K) 0.1 (L) 0.01(M) 0.001(N) 0.001 120| 1 mol M¨v‡mi Rb¨ fvÛviIqvjm mgxKiY †KvbwU? a (K) P 2 v b RT
(L) P
0.12a
v 0.2b 2 RT v v 2 0.01 0.01 016 RT (M) (N) P 2 v 0.016 P 2 v 0.1b 0.0RT v v
121| cig k~b¨ b¨ ZvcgvÎvi gvb KZ?
(K) 250C (L) 00C (M) -2730C (N) -2980C
122 | ‡Kvb M¨vmwU `ª æZ e¨vwcZ n‡e ? (K) Cl2
(L) N2 (M) CO2
123| 4.0 g AlG cigvYy i msL¨v KqwU ? a)8.9x 1017 b)8.9 x 1022 c) 9.9 x 10 23 d) 11.9 x 10 23
(N) SO2
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CHEMISTRY LEARNING CHECK
MCQ
128| A¨vjy wgwbqvg avZz wb wb ®‹vk‡b A¨vjy wgbvi Mjbv¼ Kgv‡Z wb‡Pi †Kvb †hŠMwU e¨eüZ nq?
(K) µv‡qvjvBU (L) †d¬ vi¯úvi (M) A¨vjy bvBU (N) wMemvBU 129| Al Gi AvKwiK †KvbwU ? A) ‡eviv· b) Pzbvcv_i c) e·vBU d) ‡ngvUvBU
wb®‹vk‡b ZijZv e„ w×i Rb¨ e¨eüZ nq - I) CaF2 ii) Cryollite iii) Bauxite 130| Al avZy wb®‹ ª v‡Rb cigvY~ i fi KZ? 131| GKwU nvB‡Wª -24
-27
-24
-27
a) 1.67 x 10 g b) 1.67 x 10 g c) 3.67 x 10 g d) 4.67 x 10 g
132| ‡mvwWqvg †UÆv_v‡qv‡bU †hŠ‡M †K›`ª xq cigvYy i RviY gvY KZ? (K) 2.0 (L) 2.5 (M) 3.0 (N) 3.5 133| RviK I weRviK Dfqiæ‡c wµqv K‡i †KvbwU? ?a)Sn2+ b) Sn4+ c )Fe3+ d)Zn2+ MÖ vg Cu Rgv n‡e? 134| 5. mA we`y ¨r CuSO4 `ª e‡Y 10 min a‡i we`y ¨r Pvjbv Ki‡j K¨v‡_v‡W KZ MÖ vg (K) 4.9 10-4gm (L) 9.8 10-4gm (M) 9.8 10-7gm (N) 4.9 10-12gm 0 0.76V ) Ges Ag / Ag E o OX 0.80v Øviv MwVZ †Kv‡li Rb¨ †Kvb 135| Zn / Zn 2 ( E Ox Z_¨¸wj mwVK? i.A¨v‡bvW wewµqv: Zn = Zn 2+ + 2e ii. K¨v‡_vW wewµqv: 2Ag = 2Ag + + 2e iii. Ag cv‡Î Zn2+ `ª eY ivLv hv‡e wb‡Pi wb‡Pi †KvbwU mwVK? (K) i (L) ii (M) i I iii (N) i, ii I iii e‡j i gvb KZ? 136| cÖ gvY nvB‡Wª v‡Rb ZworØv‡ii ZworPvjK e‡ji (K) 0.0v (L) 1.1 v(M) 1.5 v(N) 6-10 v 137| 1F = ? (K) 9650C (L) 96500C (M) 965000C (N) 9650000C 138| HSO4- Gi Ab~ eÜx ÿviK - a) H2SO4 b) SO42- c) H3O+ d) SO3 `ª e‡Yi eY© Kx Kx n‡e? A) Red b) Blue c) Pink d) 139| NaOH `ª e‡Y †dbd_¨vwjb †hvM Ki‡j `ª e‡Yi
Colourless
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CHEMISTRY LEARNING CHECK
MCQ
145| ‡KvbwU Zij mwÜ wefe `~ i Ki‡e? a) pH meter b) M¨vjfv‡bvwgUvi c) c) ‡fvëwgUvi d) d) jeY †mZz 146| hw` Fe I Ag Gi cÖ gvY RviY wefe +0.44V I -0.79V nq Z‡e †Kvl wefe=? a) 0.35 b) 1.1 c) 1.23 d) 1.50v a) abvZœ K b) b) FYvZœ K c) wbi‡c 147| Zwor we‡kø lY †Kv‡li A¨v‡bvW ZworØviwU – a) ÿ d) weRviY N‡U 0.3M NaOH jvM‡e? 148| 30mL0.3M H2SO4 `ª eY cÖ kwgZ Ki‡Z KZUz Kz 0.3M A) 15 b) 30 c) 60 d) 90
149| 10 mL 0.1M NaOH `ª e‡Y 20 mL 0.1M HCl `ª eY †hvM K‡i †dbd_¨vwjb †hvM Ki‡j `ª e‡Yi eY© Kx Kx n‡e? A) Red b) Blue Blue c) Pink d) Colourless Ki‡Z cvi‡e? A) Zn b) Ca c) Au d) K 150| wb‡¤œ i †Kv bwU HCl Gi H †K cÖ wZm’ vwcZ -i) avZz wb®‹ wb®‹vk‡b ii) ZworcÖ ‡jc‡b iii) Av‡qvwW‡bi evwYwR¨K 151| Zworwe‡kø lY c×wZ cÖ ‡hvR¨ -i) Drcv`‡b ; ‡KvbwU mwVK ? A) I b) ii,iii c) I,ii d) I,iii 152. 20mL0.3M H 2SO4 `ª eY cÖ kwgZ Ki‡Z KZUz Kz 1M 1M NaOH jvM‡e? A) 12 b) 15 c) 20 d) 60 153. 10g CaCO 3 ‡K Zvc w`‡j KZUz Kz Pz Pz b cvIqv hv‡e? A) 4.0 b) 5.6 c) 10 d) 15
c`v_© †KvbwU? †KvbwU?- a) Oxalic acid b) Potassium dichromate 154. ‡m‡KÛvix ÷¨vÛvW© c`v_© c) Potassium paramagnetic d) Sodium carbonate -
+
2+
155. MnO4 + 8H +? = Mn + 4H2O ; - a) 3e b) 5e c) 6e d) 7e
cÖ vq Av`k© M¨v‡mi M¨v‡mi b¨vq AvPib K‡i? 156. wb‡Pi †Kvb M¨vmwU A¨vgvMv e‡µ cÖ vq (a) H (b) He (c) N2 (d) CO2
vi¯úvi Gi ms‡KZ †KvbwU?
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CHEMISTRY LEARNING CHECK 4+
2+
162.Sn + 2 Fe = Sn 4+
2+
3+
;wewµqvwU‡Z †KvbwUi RviY N‡U ? + 2 Fe wewµqvwU‡Z
2+
(a) Sn
MCQ
(b) Fe
(c) Sn
2+
3+
(d) Fe
163. 35 mL 0.2M Na2S2O4 `ª eY‡K
RvwiZ Ki‡Z KZ MÖ vg Av‡qvwWb cÖ ‡qvRb ?
(a) 0.69 (b) 0.79 (c) 0.89 (d) 1.78 164. ev¯Í e
M¨vm Av`k© AvPib AvPib K‡i i. wb¤œ ZvcgvÎv ZvcgvÎv I D”P Pv‡c
AvqZb bMb¨ n‡j; †KvbwU mwV K ? 165. CuSO4 Gi
ii. D”P
ZvcgvÎv I wb¤œ Pv‡c Pv‡c iii.
(a) I (b) ii (c) iii (d) ii, iii
Zworwe‡køl‡Y A¨v‡bv‡W Kx Rgv n‡e?
(a) Cu (b) S c) O (d) H 166. W¨vwbq¨vj †Kv‡li cÖ gvY 167.
†Kvl wef‡ei gvb (a) 1.0V
(b) 1.1V (c) 1.5V (d) 2.0V
GKwU †jvnvi Pvg‡Pi Bci †µvwgqv‡gi cÖ‡jc w`‡Z n‡j - i. Cr avZz ‡K A¨v‡bv‡W wb‡Z n‡e ii. ii. Cr
avZz ‡K K¨v‡_v‡W wb‡Z n‡e n ‡e
iii. Cr 2(SO4) 3
Gi `ª eY wb‡Z n‡e: †KvbwU † KvbwU mwVK? (a) I (b) ii (c) I, iii
(d) ii,iii 168. K¨v‡jv‡g‡ji
ms‡KZ -
(a) HgCl2 (b) Hg2Cl2 (c) AgCl (d) KCl 169. hw` CuSO4 I NiSO4 `ª e‡Y
GKB cwigvY we`¨y w e`¨yr GKB mgqe¨vcx cÖ evwnZ K‡i 2.4g Kcvi Rgv
Kiv nq Z‡e KZ MÖ vg wb‡Kj Rgv n‡e? (a) 2.22 (b) 2.52 (c) 3.25 (d) 4.45 170. hw`
Awf¯ª vewbK Pvc `ª eY Pvc A‡cÿv †ewk nq Z‡e –
K¨v‡_vW iii. ZworØviwU‡Z RviY N‡U; †KvbwU mwVK? (a) I 171. d¨viv‡Wi
m~ Î cÖ ‡hvR¨ n‡e - i. B‡j±ªYxq cwievnx †KvbwU mwVK?
i. ZworØviwU
A¨v‡bvW
(b) ii (c) iii (d) I, I, iii
ii. AvqwbK
cwievnx
ii. ZworØviwU
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CHEMISTRY LEARNING CHECK 176. 20mL 0.15M HCl I 10 mL 0.1M H2SO4 Gi
cÖ ‡qvRb ? (a) 2 (b) (b) 3
wgkÖY‡K Y‡K cÖ kwgZ Ki‡Z KZUz Kz
1M NaOH
(c) 4 (d) 5
177. hw` 20mL 20mL 0.25M NaOH `ª eY‡K 100mL 100mL 0.25M HCOOH `ªe‡bi
Drcbœ wgkÖ wgkÖYwU YwU GKwU - (a) Basic (b) Neutral (c) Buffer (d) Normal `ª eY . GwmW 178. Zxeª GwmW
MCQ
I Zxeª ÿv‡ii ÿv‡ii wewµqvq eY© cwieZ© cwieZ© ‡bi cwimxgv .... pH pH .
(a) 3-8 (b) 6-8 (c) 10-12 (d) 12-14
mv‡_ †hvM Kiv nq Z‡e