Bihar Board Class 12th Model Paper 2025 Chemistry

BIHAR
BOARD
Model
Paper 2025

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INTERMEDIATE EXAMINATION-2025
bUVjehfM,V ijh{kk&2025
( ANNUAL/okf’kZd )

CHEMISTRY (Elective)
jlk;u 'kkL= ¼,sfPNd½
I.Sc. (Theory/lS)kfUrd)

dqy ç”u : 70+20+6 = 96 fo"k; dksM% 118
Subject Code:
Total Questions: 70+20+6 = 96
¼le; : 3 ?kaVs 15 feuV½ ¼ iw.kkZad :70 ½
[Time : 3 Hours 15 Minutes] [Full Marks:70]
ijh{kkfFkZ;ksa ds fy, funsZ'k%
Instructions for the candidates:
1. ijh{kkFkhZ 𝑂𝑀𝑅 mÙkj&i=d ij viuk ç'u iqfLrdk Øekad ¼10 vadksa dk½ vo';
fy[ksaA
Candidates must enter his/her Question Booklet Serial No. (10 Digits) in the
OMR Answer Sheet.
2. ijh{kkFkhZ ;FkklaHko vius 'kCnksa esa gh mÙkj nsAa
Candidates are required to give their answers in their own words as far as
practicable.
3. nkfguh vksj gkf”k;s ij fn;s gq, vad iw.kkaZd fufnZ"V djrs gSaA
Figures in the right hand margin indicate full marks.
4. ç'uksa dks /;kuiwoZd i<+us ds fy, ijh{kkfFkZ;ksa dks 15 feuV dk vfrfjä le; fn;k
x;k gSA
15 minutes of extra time have been allotted for the candidates to read the
questions carefully.
5. ;g ç'u iqfLrdk nks [k.Mksa esa gS – [k.M&v vkSj [k.M&c
This Question booklet divided into two sections, SECTION-A and SECTION-
B.

Page 1 of 24

6. [k.M&v esa 70 oLrqfu"B iz'u gS] ftuesa ls fdUgha 35 iz'uksa dk mÙkj nsuk vfuok;Z gSA 35 iz'uksa
ls vf/kd dk mÙkj nsus ij izFke 35 dk gh ewY;kadu gksxkA izR;sd iz'u ds fy, 1 vad fu/kkZfjr
gSA budk mÙkj nsus ds fy, miyC/k djk;s x;s x, 𝑂𝑀𝑅 mÙkj&i=d esa fn, x, lgh fodYi
dks uhys@dkys ckWy isu ls izxk<+ djsaA fdlh Hkh izdkj ds OgkbVuj@rjy inkFkZ@CysM@uk[kwu
vkfn dk 𝑂𝑀𝑅 mÙkj&i=d esa iz;ksx djuk euk gS] vU;Fkk ijh{kk ifj.kke vekU; gksxkA
In SECTION- A, there are 70 objective type questions, out of which any 35
questions are to be answered. If more than 35 questions are answered, then
only first 35 answers will be evaluated. Each question carries 1 mark. For
answering thee darken the circle with blue/ black ball pen against the correct
option on OMR Answer sheet provided to you. Do not use Whitener
/Liquid/Blade/Nail etc. on OMR Answer Sheet, otherwise the result will be
invalid.
7. [k.M& c esa 20 y?kqmÙkjh; iz'u gSaA izR;sd ds fy, 2 vad fu/kkZfjr gSA ftuesa ls
fdUgha 10 iz'uksa ds mÙkj nsuk vfuok;Z gSA blds vfrfjDr bl [k.M esa 06 nh?kZ
mÙkjh; iz'u fn, x, gSa] izR;sd ds fy, 05 vad fu/kkZfjr gSaA ftuesa ls fdUgha 03
iz'uksa ds mÙkj nsuk vfuok;Z gSA
In SECTION- B, there are 20 Short Answer Type Questions, Each question
carrying 2 marks, out of which any 10 questions are to be answered. Apart
from these, there are 06 Long Answer Type Questions, each carrying 5 marks,
out of which any 3 questions are to be answered.

8. fdlh izdkj ds bysDVªkWfud midj.k dk iz;ksx iw.kZr;k oftZr gSA
Use of any electronic appliances is strictly prohibited.

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[k.M & v / SECTION-A
oLrqfu"B ç'u / Objective Type Questions
ç'u la[;k 1 ls 70 rd ds ç’u ds lkFk pkj fodYi fn;s x;s gSa] ftuesa ls ,d lgh
gSA vius }kjk pqus x;s lgh fodYi dks 𝑶𝑴𝑹 'khV ij fpfºur djsaA fdUgha 35 ç’uksa
dk mÙkj nsaA 𝟑𝟓 × 𝟏 = 𝟑𝟓

Questions Nos. 1 to 70 have four options, out of which only one is correct. You
have to mark your selected option on the OMR-sheet. Answer any 35 questions.
35 × 1 = 35

1. ewy fØLVy ra=ksa dh la[;k gksrh gS&
(A) 4 (B) 7
(C) 14 (D) 8
The number of main crystal system is
(A) 4 (B) 7
(C) 14 (D) 8
2. ?kukdkj lajpuk esa fiaM&dsfUær ijek.kq dh leUo; la[;k gksrh gS&
(A) 4 (B) 6
(C) 8 (D) 9
The co-ordination number of an atom in body centred cubic geometry is
(A) 4 (B) 6
(C) 8 (D) 9
3. ?kukdkj fØLVy esa czsosl tkydksa dh la[;k gksrh gS&
(A) 3 (B) 1
(C) 4 (D) 14
The number of Bravais lattices in a cubic crystal is
(A) 3 (B) 1

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(C) 4 (D) 14
4. l–'k ijek.kqokys ,d Qyd&dsfUær ?kukdkj bdkbZ lsy esa prq"Qyd fjä;ksa
dh la[;k gksrh gS&
(A) 8 (B) 4
(C) 6 (D) 12
The number of tetrahedral voids in a face centred cubic unit cell having
identical atom is
(A) 8 (B) 4
(C) 6 (D) 12
5. fuEufyf[kr esa ls fdldk fgekad voueu vf/kdre gksxk?
(A) 𝐾 𝑆𝑂 (B) 𝑁𝑎𝐶𝑙
(C) ;wfj;k (D) Xywdkst
Which of the following has maximum depression in Freezing point?
(A) 𝐾 𝑆𝑂 (B) 𝑁𝑎𝐶𝑙
(C) Urea (D) Glucose
6. fuEufyf[kr esa dkSu foy;u ds v.kqla[; xq.k/keZ dk mnkgj.k gS\
(A) ?kuRo (B) æO;eku
(C) DoFkukad mUu;u (D) rki
Which of the following is an example of colligative properties of a
solution?
(A) Density (B) Mass
(C) Elevation in boiling point (D) Temperature
7. vxj 18𝑔 Xywdkst (𝐶 𝐻 𝑂 ) fdlh foyk;d ds 1000𝑔 esa mifLFkr gS] rks
foy;u dh eksyyrk gS&
(A) 1 (B) 2
(C) 0.1 (D) 0.5
If 18𝑔 of glucose (𝐶 𝐻 𝑂 ) is present in 1000𝑔 of a solvent, then the
molality of solution is

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(A) 1 (B) 2
(C) 0.1 (D) 0.5
8. ,d QSjkMs cjkcj gksrk gS
(A) 9,650 dwyEc (B) 10,000 dwyEc
(C) 49,640 dwyEc (D) 96,500 dwyEc
One Faraday is equal to
(A) 9,650 coulomb (B) 10,000 coulomb
(C) 49,640 coulomb (D) 96,500 coulomb
9. tyh; ?kksy esa ,d v.kq 𝐾 [𝐹𝑒(𝐶𝑁) ] ds }kjk fdrus vk;u çkIr gksrs gSa
(A) 2 (B) 5
(C) 11 (D) 10
The number of ions produced by 1 molecule of 𝐾 [𝐹𝑒(𝐶𝑁) ] in aqueous
solution is
(A) 2 (B) 5
(C) 11 (D) 10
10. 0.1 N 𝐶𝐻 𝐶𝑂𝑂𝐻 ?kksy dk rqY;kadh pkydRo 25°𝑐 ij 80 ,oa vUur ruqrk
ij 400 𝑜ℎ𝑚 𝑐𝑚 equivalent gS] rks 𝐶𝐻 𝐶𝑂𝑂𝐻 dk fo[kaMu dk va”k
gS
(A) 1 (B) 0.2
(C) 0.1 (D) 0.5
If equivalent conductance of 0.1 N 𝐶𝐻 𝐶𝑂𝑂𝐻 at 25° 𝑐 in 80 and at
infinite dilution is 400 𝑜ℎ𝑚 𝑐𝑚 equivalent , then its degree of
dissociation is
(A) 1 (B) 0.2
(C) 0.1 (D) 0.5
11.Cu, Zn, Ag vkSj Fe ds ekud vodj.k foHkoksa dk Øe gS&
(A) 𝐶𝑢, 𝐴𝑔, 𝐹𝑒, 𝑍𝑛 (B) 𝐴𝑔, 𝐶𝑢, 𝐹𝑒, 𝑍𝑛
(C) 𝐹𝑒, 𝐴𝑔, 𝐶𝑢, 𝑍𝑛 (D) 𝑍𝑛, 𝐶𝑢, 𝐴𝑔, 𝐹𝑒

Page 5 of 24

In order of standard reduction potentials of 𝐶𝑢, 𝑍𝑛, 𝐴𝑔 and 𝐹𝑒 is
(A) 𝐶𝑢, 𝐴𝑔, 𝐹𝑒, 𝑍𝑛 (B) 𝐴𝑔, 𝐶𝑢, 𝐹𝑒, 𝑍𝑛
(C) 𝐹𝑒, 𝐴𝑔, 𝐶𝑢, 𝑍𝑛 (D) 𝑍𝑛, 𝐶𝑢, 𝐴𝑔, 𝐹𝑒
12.fuEufyf[kr esa dkSu f}rh;d lsy gS\
(A) ysdykap lsy (B) ysM LVksjst cSVjh
(C) lkaæ.k lsy (D) buesa ls lHkh
Which of the following is a secondary cell?
(A) Leclanche cell (B) Lead storage battery
(C) Concentration cell (D) All of these
13.A, B vkSj C rRoksa dk ekud vip;;u foHko dk eku Øe”k% +0.68V, -2.50
vkSj -0.50 V gS] rks mudh vipu; ”kfDr dk Øe gS&
(A) 𝐴>𝐵>𝐶 (B) 𝐴>𝐶>𝐵
(C) 𝐶>𝐵>𝐴 (D) 𝐵>𝐶>𝐴
The standard reduction potential values of elements 𝐴, 𝐵 and 𝐶 are
+0.68 𝑉, −2.50 𝑉 and 0.50 𝑉 respectively. The order of their reducing
power is
(A) 𝐴>𝐵>𝐶 (B) 𝐴>𝐶>𝐵
(C) 𝐶>𝐵>𝐴 (D) 𝐵>𝐶>𝐴
14. fdl dksfV dh vfHkfØ;k ds fy, vfHkfØ;k ds osx ,oa osx&fLFkjkad dh bdkbZ
leku gksrh gS\
(A) “kwU; (B) çFke
(C) f}rh; (D) r`rh;
The unit of rate of reaction and rate constant is same for the reaction of
which order?
(A) Zero (B) First
(C) Second (D) Third
15.çFke dksfV dh vfHkfØ;k ds osx&fLFkjkad dh bdkbZ gksrh gS\
(A) eksy yh० (B) le;&1

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(C) yhñ eksy lsñ&1 (D) eksy yhñ&1 lsñ&1
The unit of rate constant of a first order reaction is?
(A) 𝑚𝑜𝑙. 𝐿 (B) 𝑡𝑖𝑚𝑒
(C) 𝐿. 𝑚𝑜𝑙. 𝑠 (D) 𝑚𝑜𝑙 𝐿 𝑆
16.vfHkfØ;k 𝐴→𝐵] ds fy, vfHkfØ;k ds osx dk fu:i.k fuEufyf[kr esa ls
fdlds }kjk gksxk\
[ ] [ ]
(A) (B) −
[ ] [ ]
(C) − (D)

For the reaction, 𝐴 → 𝐵, the rate of reaction should be represented by
which of the following?
[ ] [ ]
(A) (B) −
[ ] [ ]
(C) − (D)

17.fuEufyf[kr esa dkSu lk dkjd vfHkfØ;k ds nj dks çHkkfor djrk gS\
(A) rki (B) nkc
(C) lkaæ.k (D) buesa ls lHkh
Which of the following factors affect the rate of a chemical reaction?
(A) Temperature (B) Pressure
(C) Concentration (D) All of these
18. batkbe gS ,d&
(A) dkcksZgkbMªsV (B) fyfiM
(C) çksVhu (D) buesa ls lHkh
Enzyme is a
(A) Carbohydrate (B) Lipid
(C) Protein (D) None of these
19.fuEufyf[kr esa dkSu fVaMy çHkko çnf'kZr djrk gS\
(A) foy;u (B) vo{ksi
(C) lksy (D) ok’i
Page 7 of 24

Which of the following exhibit Tyndall effect?
(A) Solution (B) Precipitate
(C) Sol (D) Vapour
20.nw/k fuEufyf[kr esa ls fdldk mnkgj.k gS\
(A) ik;l (B) fuyEcu
(C) lksy (D) buesa ls lHkh
Milk is an example of which of the following?
(A) Emulsion (B) Suspension
(C) Sol (D) None of these
21.HkkSfrd vf/k'kks"k.k esa yxHkx fdruh ÅtkZ mRlftZr gksrh gS\
(A) 20 − 40 𝐾𝑗𝑚𝑜𝑙 (B) 40 − 60 𝐾𝑗𝑚𝑜𝑙
(C) 60 − 80 𝐾𝑗𝑚𝑜𝑙 (D) 40 − 400 𝐾𝑗𝑚𝑜𝑙
What is the approximate heat energy is evolved in physical adsorption?
(A) 20 − 40 𝐾𝑗𝑚𝑜𝑙 (B) 40 − 60 𝐾𝑗𝑚𝑜𝑙
(C) 60 − 80 𝐾𝑗𝑚𝑜𝑙 (D) 40 − 400 𝐾𝑗𝑚𝑜𝑙
22.Q‚LQksjl isaVksDlkbM gS ,d vPNk
(A) vf/k'kks"kd (B) vo'kks"kd
(C) jaxuk'kd (D) vodkjd
Phosphorus pentoxide is a good
(A) Adsorbent (B) Absorbent
(C) Bleaching agent (D) Reducing agent
23.gsesVkbV ls yksgk çkIr djus esa pwuk iRFkj dk mi;ksx fdl #i esa fd;k tkrk
gS\
(A) æod (B) /kkrqey
(C) vodkjd (D) vkWDlhdkjd
Limestone is used during the extraction of iron from haematite are as
(A) Flux (B) Slag
(C) Reducing agent (D) Oxidising agent

Page 8 of 24

24.fuEufyf[kr esa dkSu /kkrq lk;ukbM fof/k }kjk çkIr fd;k tkrk gS\
(A) Øksfe;e (B) d‚ij
(C) flYoj (D) ,sY;qehfu;e
Which of the following metals is obtained by cyanide process?
(A) Chromium (B) Copper
(C) Silver (D) Aluminium
25.xSyu
s k fuEufyf[kr esa fdl /kkrq dk v;Ld gS\
(A) Sn (B) Pb
(C) Si (D) Ag
Galena is an ore of which of the following metals?
(A) Sn (B) Pb
(C) Si (D) Ag
26.lYQkbM v;Ldksa dk lkaæ.k fd;k tkrk gS&
(A) Qsu&mRIykou fof/k }kjk (B) fo|qr foPNsnu fof/k }kjk
(C) HktZu }kjk (D) buesa ls dksbZ ugha
Sulphide ores are concentrated by
(A) Froth floatation process (B) Electrolysis
(C) By Roasting (D) None of these
27.Dyksjhu veksfu;k dh vf/kdrk esa vfHkfØ;k djds cukrk gSA
(A) 𝑁𝐻 𝐶𝑙 (B) 𝑁 + 𝐻𝐶𝑙
(C) 𝑁 + 𝑁𝐻 𝐶𝑙 (D) 𝑁 + 𝐻𝐶𝑙
Chlorine reacts with excess of ammonia to form
(A) 𝑁𝐻 𝐶𝑙 (B) 𝑁 + 𝐻𝐶𝑙
(C) 𝑁 + 𝑁𝐻 𝐶𝑙 (D) 𝑁 + 𝐻𝐶𝑙
28.fuEu esa ls fdlesa pπ-dπ ca/ku gS\
(A) 𝑁𝑂 (B) 𝐶𝑂
(C) 𝐵𝑂 (D) 𝑆𝑂
Which of the following has 𝑝𝜋 − 𝑑𝜋 bond?

Page 9 of 24

(A) 𝑁𝑂 (B) 𝐶𝑂
(C) 𝐵𝑂 (D) 𝑆𝑂

29. oxZ 16 ds rRo dk dgk tkrk gS
(A) gSykstsUl (B) pYdkstu
(C) laØe.k rRo (D) mRÑ’V xSlsa
Elements of group 16 are called-
(A) Halogens (B) Chalcogens
(C) Transition elements (D) Noble gases
30. çFke laØe.k Js.kh esa mPpre vkWDlhdj.k voLFkk çnf”kZr djuss okys rRo gS&
(A) Ni (B) Cr
(C) Fe (D) Mn
The elements showing highest oxidation state among first transition series
is
(A) Ni (B) Cr
(C) Fe (D) Mn
31.fuEufyf[kr esa ls fdl rRo esa 4𝑓 ÅtkZ Lrj Øfed :i ls Hkjrk gS\
(A) ySUFksukbM (B) ,fDVukbMl
(C) laØe.k /kkrq (D) {kkj /kkrq
In which of the following elements 4𝑓 energy level is gradually filled?
(A) Lanthanides (B) Actinides
(C) Transition metal (D) Alkali metals
32.𝐾 [𝐶𝑟(𝐶 𝑂 ) ] esa 𝐶𝑟 dh leUo; la[;k gS&
(A) 3 (B) 4
(C) 5 (D) 6
The Co-ordinator number of 𝐶𝑟 in 𝐾 [𝐶𝑟(𝐶 𝑂 ) ] is
(A) 3 (B) 4
(C) 5 (D) 6
33.fuEufyf[kr esa dkSu vuqpqacdh; gS\

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(A) 𝑁𝑖(𝐶𝑂) (B) [𝑁𝑖(𝐶𝑁) ]
(C) [𝑁𝑖𝐶𝑙 ] (D) [𝐶𝑂(𝑁𝐻 ) ]
Which of the following in paramagnet?
(A) 𝑁𝑖(𝐶𝑂) (B) [𝑁𝑖(𝐶𝑁) ]
(C) [𝑁𝑖𝐶𝑙 ] (D) [𝐶𝑂(𝑁𝐻 ) ]
34.fuEufyf[kr esa dkSu v‚Dlhdkjd ,oa vodkjd nksuksa dh rjg O;ogkj djrk gS
(A) 𝐻𝑠 (B) 𝐻 𝑆𝑂
(C) 𝑆𝑂 (D) 𝑆𝑂
Which of the following acts both as oxidising as well as reducing agents?
(A) 𝐻𝑠 (B) 𝐻 𝑆𝑂
(C) 𝑆𝑂 (D) 𝑆𝑂
35.fuEufyf[kr esa dkSu jaxhu gksrk gS\
(A) 𝑁𝐻 (B) 𝑁𝑂
(C) 𝑁𝑂 (D) 𝑁𝑂
Which of the following is coloured?
(A) 𝑁𝐻 (B) 𝑁𝑂
(C) 𝑁𝑂 (D) 𝑁𝑂
36.fuEufyf[kr esa ls dkSu vk;u jaxghu gS\
(A) 𝐶𝑢 (B) 𝐶𝑜
(C) 𝑁𝑖 (D) 𝐹𝑒
Which of the following ions is colourless?
(A) 𝐶𝑢 (B) 𝐶𝑜
(C) 𝑁𝑖 (D) 𝐹𝑒
37.fuEufyf[kr esa dkSu laØe.k rRo ugha gS\
(A) Fe (B) Sn
(C) Cu (D) Hg
Which of the following is not a transition element?
(A) Fe (B) Sn

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(C) Cu (D) Hg
38.oxZ 18 ds rRoksa dk ckº; bysDVªk¡fud foU;kl gS
(A) 𝑛𝑠 𝑝 (B) 𝑛𝑠 𝑛𝑝
(C) 𝑛𝑠 𝑛𝑝 (D) 𝑛𝑠 𝑛𝑝
The outer electronic configuration of group 18 elements is
(A) 𝑛𝑠 𝑝 (B) 𝑛𝑠 𝑛𝑝
(C) 𝑛𝑠 𝑛𝑝 (D) 𝑛𝑠 𝑛𝑝
39.fuEufyf[kr esa dkSu lcls de DoFkukad okyh xSl gS\
(A) gkbMªkstu (B) ghfy;e
(C) ukbMªkstu (D) vkxZu
Which of following gases has lowest boiling point?
(A) Hydrogen (B) Helium
(C) Nitrogen (D) Argon
40.gwi dh fof/k ds }kjk fuEufyf[kr esa fdl /kkrq dk 'kks/ku gksrk gS\
(A) Cu (B) Al
(C) Fe (D) Zn
Which of the metals is purified by Hoope’s process?
(A) Cu (B) Al
(C) Fe (D) Zn

41.fuEufyf[kr esa dkSu lcls T;knk fo|qr _.kkRed gS\
(A) 𝐹 (B) 𝐶𝑙
(C) 𝐵𝑟 (D) 𝐼
Which of the following is the most electronegative?
(A) 𝐹 (B) 𝐶𝑙
(C) 𝐵𝑟 (D) 𝐼
42.fuEufyf[kr esa ls fdldk vfLrRo esa ugha gS\
(A) 𝑋𝑒𝑂𝐹 (B) 𝑁𝑒𝐹
(C) 𝑋𝑒𝐹 (D) 𝑋𝑒𝑂

Page 12 of 24

Which of the following does not exist?
(A) 𝑋𝑒𝑂𝐹 (B) 𝑁𝑒𝐹
(C) 𝑋𝑒𝐹 (D) 𝑋𝑒𝑂
43.fuEufyf[kr esa dkSu gkbMªkstu&ca/ku ugha cukrk gS\
(A) 𝑁𝐻 (B) 𝐻𝑂
(C) 𝐻𝐶𝑙 (D) 𝐻𝐹
Which of the following doesn’t form hydrogen bond?
(A) 𝑁𝐻 (B) 𝐻𝑂
(C) 𝐻𝐶𝑙 (D) 𝐻𝐹
44.tfVy ;kSfxd [𝐶𝑜(𝑁𝐻 ) 𝐶𝑙]𝐶𝑙 ds tyh; foy;u esa vk;uksa dh la[;k gksxh\
(A) 3 (B) 4
(C) 2 (D) 6
The number of equation in the aqueous solution of complex
[𝐶𝑜(𝑁𝐻 ) 𝐶𝑙]𝐶𝑙
(A) 3 (B) 4
(C) 2 (D) 6
45.fuEufyf[kr esa dkSu vk;MksQ‚eZ ijh{k.k nsrk gS\
(A) 𝐶 𝐻 𝑂𝐻 (B) 𝐶𝐻 𝑂𝐻
(C) 𝐻𝐶𝐻𝑂 (D) 𝐶𝐻
Which of the following given iodoform test?
(A) 𝐶 𝐻 𝑂𝐻 (B) 𝐶𝐻 𝑂𝐻
(C) 𝐻𝐶𝐻𝑂 (D) 𝐶𝐻
46.,sfYdy gSykbM dk tyh; 𝐾𝑂𝐻 }kjk ,sYdksgy esa çfj.kr gksuk dgykrk gS&
(A) ;ksx'khy vfHkfØ;k
(B) çfrLFkkiu vfHkfØ;k
(C) fMgkbMªksgSykstuhdj.k vfHkfØ;k
(D) foyksiu vfHkfØ;k

Page 13 of 24

The conversion of alkyl halide into alcohol by the reaction of aqueous
KOH is called
(A) Addition reaction
(B) Substitution reaction
(C) Dehydrohalogenation reaction
(D) Elimination reaction
47. lsdsaMjh C;wfVy DyksjkbM dk 𝐼𝑈𝑃𝐴𝐶 uke gS
(A) 3-DyksjksC;wVsu
(B) 2-DyksjksC;wVsu
(C) 1- Dyksjks 2- esfFky çksisu
(D) 2- Dyksjks 2- esfFky çksisu
The IUPAC name of secondary Butyl chloride is
(A) 3 − 𝑐ℎ𝑙𝑜𝑟𝑜𝑏𝑢𝑡𝑎𝑛𝑒
(B) 2 − 𝑐ℎ𝑙𝑜𝑟𝑜𝑏𝑢𝑡𝑎𝑛𝑒
(C) 1 − 𝑐ℎ𝑙𝑜𝑟𝑜 2 − 𝑚𝑒𝑡ℎ𝑦𝑙 𝑝𝑟𝑜𝑝𝑎𝑛𝑒
(D) 2 − 𝑐ℎ𝑙𝑜𝑟𝑜 2 − 𝑚𝑒𝑡ℎ𝑦𝑙 𝑝𝑟𝑜𝑝𝑎𝑛𝑒
48.fuEufyf[kr esa dkSu lk foukby gSykbM gS\
(A) 𝐶𝐻 = 𝐶𝐻 − 𝐶𝐻𝐵𝑟𝐶𝐻
(B) 𝐶𝐻 − 𝐶(𝐵𝑟) = 𝐶𝐻
(C) 𝐶𝐻 = 𝐶𝐻 − 𝐶𝐻 − 𝐶𝐻 − 𝐶𝑙
(D) 𝐶𝐻 ≡ 𝐶 − 𝐵𝑟
Which of the following is vinyl halide?
(A) 𝐶𝐻 = 𝐶𝐻 − 𝐶𝐻𝐵𝑟𝐶𝐻
(B) 𝐶𝐻 − 𝐶(𝐵𝑟) = 𝐶𝐻
(C) 𝐶𝐻 = 𝐶𝐻 − 𝐶𝐻 − 𝐶𝐻 − 𝐶𝑙
(D) 𝐶𝐻 ≡ 𝐶 − 𝐵𝑟
49.fuEufyf[kr esa fdldk mi;ksx fu'psrd ds :i esa gksrk gS&
(A) DyksjksQkWeZ (B) vk;ksMksQkWeZ

Page 14 of 24

(C) ,slhfVyhu (D) esFksu
Which of the following is used as anaesthetic
(A) Chloroform (B) Iodoform
(C) Acetylene (D) Methane
50.𝐶 𝐻 𝑂𝐻 ,oa 𝐶𝐻 𝑂𝐶𝐻 gS
(A) LFkku leko;oh (B) fØ;k”khy leko;oh
(C) J`a[kyk leko;oh (D) buesa ls lHkh
𝐶 𝐻 𝑂𝐻 and 𝐶𝐻 𝑂𝐶𝐻 are
(A) Position isomers (B) Functional isomers
(C) Chain isomer (D) All of these
51.çkFkfed ,sYdksgkWy dks v‚Dlhdj.k ls çkIr gksrk gS
(A) dhVksu (B) bZLVj
(C) dkcksZfa Dlfyd vEy (D) bZFkj
Primary alcohol on oxidation given
(A) Ketone (B) Ester
(C) Carboxylic acid (D) Ether
52.MkbZ,fFky bZFkj dk IUPAC uke gS
(A) feFkkWDlh feFksu (B) bFkkWDlh bFksu
(C) feFkkWDlh çksisu (D) bFkksaDlh feFksu
The IUPAC name of Diethyl ether is
(A) Methoxy methane (B) Ethoxy ethane
(C) Methoxy propane (D) Ethoxy ethane
53.IUPAC ç.kkyh eas ,slhVksu dk uke gS
(A) esFksuy (B) ,Fksuy
(C) çksisuksu (D) ,Fkkuksu

The IUPAC name of acetone is

(A) Methanal (B) Ethanal

Page 15 of 24

(C) Propanone (D) Ethanone
54.Qk¡eZsfYMgkbM dks NaOH foy;u ds lkFk xeZ djus ij fuEufyf[kr esa dkSu
çkIr gksrk gS\
(A) QkfeZd vEy (B) ,slhVksu
(C) esfFky ,sYdksgkWy
(D) esfFky ,sYdksgkWy vkSj lksfM;e QkWesZV
Which of the following is obtained on heating formaldehyde with 𝑁𝑎𝑂𝐻
solution.
(A) Formic acid (B) Acetone
(C) Methyl alcohol (D) Methyl alcohol and Sodium formate

𝑂𝐻
∣
55.vfHkfØ;k 𝐶𝐻 𝐶𝑂𝐶𝐻 + 𝐻𝐶𝑁 → 𝐶𝐻 − 𝐶 − 𝐶𝐻
∣
𝐶𝑁

fuEufyf[kr esa fdldk mnkgj.k gS\

(A) bysDVªkWLusgh çfrLFkkiu (B) ukfHkdLusgh çfrLFkkiu
(C) ukfHkdLusgh ;ksx (D) bysDVªkWLusgh ;ksx
𝑂𝐻
∣
The reaction, 𝐶𝐻 𝐶𝑂𝐶𝐻 + 𝐻𝐶𝑁 → 𝐶𝐻 −𝐶− 𝐶𝐻
∣
𝐶𝑁
is an example of which of the following?
(A) Electrophilic substitution (B) Nucleophilic substitution
(C) Nucleophilic addition (D) Electrophilic addition
56.dkcksZfDlfyd vEyksa dk fØ;k'khy ewyd gS&
(A) −𝐶𝐻𝑂 0
(B) ||
−𝐶 −
(C) −𝐶𝑂𝑂𝐻 (D) −𝐶𝑂𝑂𝑅
The functional group of carboxylic acids is

Page 16 of 24

(A) −𝐶𝐻𝑂 0
(B) ||
−𝐶 −
(C) −𝐶𝑂𝑂𝐻 (D) −𝐶𝑂𝑂𝑅
57.𝐶𝐻 𝐶𝑁 ds ty vi?kVu ls fuEufyf[kr esa dkSu çkIr gksrk gS\
(A) 𝐶𝐻 (B) 𝐶𝐻 𝐶𝐻 𝐶𝑂𝑂𝐻
(C) 𝐶𝐻 𝐶𝑂𝑂𝐻 (D) 𝐻𝐶𝑂𝑂𝐻

Which of the following is obtained on hydrolysis of 𝐶𝐻 𝐶𝑁 ?

(A) 𝐶𝐻 (B) 𝐶𝐻 𝐶𝐻 𝐶𝑂𝑂𝐻
(C) 𝐶𝐻 𝐶𝑂𝑂𝐻 (D) 𝐻𝐶𝑂𝑂𝐻
58.v.kql=
w 𝐶 𝐻 𝑁 ds }kjk fuEufyf[kr esa fdls O;Dr fd;k tkrk gS\
(A) çkbejh ,sehu (B) lsds.Mjh ,sehu
(C) Vf”kZ;jh ,sehu (D) buesa ls lHkh

Which of the following can be represented by molecular formula 𝐶 𝐻 𝑁 ?

(A) Primary amine (B) Secondary amine
(C) Tertiary amine (D) All of these
59.,suhyhu dh vfHkfØ;k l/kwe lY¶;wfjd vEy ds lkFk djkus ij fuEufyf[kr esa
dkSu curk gS\
(A) lYQksfud vEy (B) lYQSfufyd vEy
(C) csathu lYQksfud vEy (D) csatksbd vEy

Which of the following is formed when aniline reacts with fuming
sulphuric acid?

(A) Sulphonic acid (B) Sulphanilic acid
(C) Benzene sulphonic acid (D) Benzoic acid
60.çkbejh ,sehu dh DyksjksQ‚eZ rFkk ,sFksuk¡fyd 𝐾𝑂𝐻 ds lkFk vfHkfØ;k dgykrh
gSA
(A) dkfcZy ,sehu vfHkfØ;k (B) dksYcs vfHkfØ;k

Page 17 of 24

(C) jhej rFkk VheSu vfHkfØ;k (D) gk¡QeSu vfHkfØ;k

The reaction in which primary amine reacts with chloroform and
ethanolic 𝐾𝑂𝐻 is called

(A) Carbyl amine reaction (B) Kolbe’s reaction
(C) Reimer and Tiemann (D) Hoffmann reaction
reaction
61.lqØkst dk ty vi?kVu dgykrk gS
(A) lkcquhdj.k (B) ty;kstu
(C) ,LVjhdj.k (D) buo'kZu

The hydrolysis of sucrose is called

(A) Saponification (B) Hydration
(C) Esterification (D) Inversion
62.,sehuks vEy esa ik;k tkus okyk fØ;k”khr lewg gS&
(A) −𝐶𝑂𝑂𝐻 lewg (B) −𝑁𝐻 lewg
(C) −𝐶𝐻 lewg (D) (𝐴) rFkk (𝐵)nksuksa

Functional groups present in amino acids are

(A) 𝐶𝑂𝑂𝐻 gp (B) −𝑁𝐻 gp
(C) −𝐶𝐻 gp (D) 𝐵𝑜𝑡ℎ 𝐴 𝑎𝑛𝑑 𝐵
63.jrkSa/kh fdldh deh ls gksrk gS&
(A) foVkfeu 𝐵 (B) foVkfeu A
(C) foVkfeu C (D) foVkfeu E

Night blindness is due to the deficiency of

(A) 𝑉𝑖𝑡𝑎𝑚𝑖𝑛 𝐵 (B) 𝑉𝑖𝑡𝑎𝑚𝑖𝑛 𝐴
(C) 𝑉𝑖𝑡𝑎𝑚𝑖𝑛 𝐶 (D) 𝑉𝑖𝑡𝑎𝑚𝑖𝑛 𝐸
64.fuEufyf[kr esa dkSu lk/kkj.kr;k 'kjhj }kjk ugha cuk;s tkrs \

Page 18 of 24

(A) ,atkbe (B) foVkfeu
(C) çksVhu (D) gkeksZu

Which of the following is commonly not produced by our body?

(A) Enzyme (B) Vitamin
(C) Protein (D) Harmone
65.fuEufyf[kr esa ls dkSu o`gr v.kq ugha gS\
(A) Mh,u, (B) LVkpZ
(C) ikSfYeVsV (D) bUlqfyu

Which of the following is not a macromolecule?

(A) DNA (B) Starch
(C) Palmitate (D) Insulin
66.igyk vkS|ksfxd la”ysf’kr jcj gS&
(A) esfFky jcj (B) C;wuk&𝑁&jcj
(C) C;wuk&𝑆&jcj (D) buesa ls dksbZ ugha

The first industrially synthesis rubber is

(A) Methyl rubber (B) Buna-N-rubber
(C) Buna-Sy-rubber (D) None of these
67.v‚yZ‚u fuEufyf[kr esa ls fdlds cgqyd gS\
(A) VsVªk¶yksjks ,Fkhu dk (B) ,sfØyksukbVªkby dk
(C) ,FkSuksbd vEy dk (D) csathu dk

Orlon is a polymer of which of the following?

(A) Tetrafluoro ethene (B) Acrylonitrile
(C) Ethanoic acid (D) Benzene
68.vkj,u, esa ekStwn I;wjhu csl gS
(A) xq,fuu (B) Fkkbfeu

Page 19 of 24

(C) lkbVksflu (D) ;wjkfly

Purine base which is present in RNA

(A) Guanine (B) Thymine
(C) Cytosine (D) Uracil
69. U;wfDyd vEyksa esa fuEufyf[kr esa dkSu&lk lgh Øe gS\
(A) HkLe&QkWLQsV&”kdZjk (B) QkWLQsV& HkLe &”kdZjk
(C) ”kdZjk & HkLe &QkWLQsV (D) HkLe &”kdZjk &QkWLQsV

Which of the following is the correct order in nucleic acid?

(A) Base-phosphate-sugar (B) Phosphate-base-sugar
(C) Sugar-base-phosphate (D) Base-sugar-phosphate
70.fuEufyf[kr esa ls dkSu&lk dkcksZgkbMªsV ouiLifr dsf”kdk dk vko”;d ?kVd
gS\
(A) LVkpZ (B) lsY;wykst
(C) lqØkst (D) foVkfeu

Which of the following carbohydrates is an essential component of plant
capillary?

(A) Starch (B) Cellulose
(C) Sucrose (D) Vitamin

ख ड – ब / SECTION -B
y?kq mÙkjh; ç’u /Short Answer Type Question
ç'u la[;k 1 ls 20 y?kq mÙkjh; gSA fdUgha 10 ç'uks ds mÙkj nsa A çR;sd ds fy, 2
vad fu/kkZfjr gSA 𝟐 × 𝟏𝟎 = 𝟐𝟎
Question Nos 1 to 20 are short Answer Type. Answer any 10 questions. Each
question carries 2 marks: 2 × 10 = 20
1. foy;u dh eksyjrk ,oa eksyyrk esa varj Li’V djsaA 2
Page 20 of 24

Differentiate between molarity and molality.
2. eksyj pkydRo dh ifjHkkf"kr djsa vkSj mldh bdkbZ fy[ksaA 2
Define molar conductance and write its unit.
3. czkmfu;u xfr D;k gS\ 2
What is Brownian movement?
4. fuLrkiu ,oa HktZu esa varj crk;saA 2
Differentiate between calcination and roasting.
5. laØe.k /kkrq,¡ vPNs mRçsjjd dk xq.k çnf'kZr djrh gSaA O;k[;k djsaA 2
Transition metals exhibit good catalyst property. Explain .
6. fuEufyf[kr tfVy ;kSfxdks dk 𝐼𝑈𝑃𝐴𝐶 uke fy[ksaA 2
(A) [𝐶𝑟(𝐻 𝑂) ]𝐶𝑙
(B) 𝐾[𝐴𝑔(𝐶𝑁) ]
Write IUPAC names of following complex compound.
(i) [𝐶𝑟(𝐻 𝑂) ]𝐶𝑙
(ii) 𝐾[𝐴𝑔(𝐶𝑁) ]
7. xzsQkbV fo|qr dk lqpkyd gksrk gS tcfd ghjk ughaA O;k[;k djsaA 2
Graphite is good conductor of electric current where as diamond in not.
Explain.
8. fi.M dsafær ?kukdkj bdkbZ lsy D;k gS\ 2
What is body centred cubic unit cell?
9. Qsgfyax fofy;u D;k gksrk gS\ bldk D;k mi;ksx gS\ 2
What is Fehling solution? What is its use?
10.fuEufyf[kr ds 𝐼𝑈𝑃𝐴𝐶 uke fy[ksaA 1+1=2

𝑂𝐻

(A) 𝐶𝐻 − 𝐶𝐻 − 𝐶𝑂𝑂𝐻

𝑂
||
(B) 𝐶𝐻 − 𝐶𝐻 − 𝐶 − 𝑂 − 𝐶𝐻

Page 21 of 24

Write IUPAC names of the following

OH
(A) 𝐶𝐻 − 𝐶𝐻 − 𝐶𝑂𝑂𝐻

𝑂
||
(B) 𝐶𝐻 − 𝐶𝐻 − 𝐶 − 𝑂 − 𝐶𝐻

11.fuEufyf[kr esa çR;sd dk ,d mnkgj.k nsa A 1+1=2
(A) fÝM~y&Øk¶V ,sfYdyhdj.k
(B) fÝMy&Øk¶V ,sflyhdj.k
Give one example of each
(A) Fridel-craft alkylation
(B) Friedel-craft acylation
12.eksuksgkbfMªd ,sYdksgkWy dk oxhZdj.k fdl izdkj fd;k tkrk gSSA 2
How are monohydric alcohols classified?
13.csdsykbV ij laf{kIr fVIi.kh fy[ksA 2
Write a short note on Bakelite.
14.viektZd D;k gS\a mnkgj.k nsaA 2
What are detergents? Give example.
15.fycjekWu dh ukbVªkslks vfHkfØ;k D;k gS\ 2
What is Liebermann’s nitroso reaction?
16.vko';d rFkk vuko';d ,sfeuks vEy D;k gS \ 2
What are essential and non-essential amino acids?
17.Nne çFke dksfV dh vfHkfØ;k D;k gS\ mnkgj.k nsaA 2
What is pseudo first order reaction? Give an example.
18.i`’BlfØ; dkjd D;k gS\a mnkgj.k nsaA 2
What are Surfactants? Give example.

Page 22 of 24

19.𝐻 𝑂, 𝐻 𝑆, 𝐻 𝑆𝑒 vkSj 𝐻₂𝑇𝑒 dks muds DoFkukad ds c<+rs Øe esa ltk;sasA
2
Arrange 𝐻 𝑂, 𝐻 𝑆, 𝐻 𝑆𝑒 𝑎𝑛𝑑 𝐻 𝑇𝑒 in the increasing order of their
boiling points.
20.mRÑ’V xSlsa D;k gSa\ mUgsa vkoÙkZ lkj.kh ds fdl oxZ esa j[kk x;k gS\ 2
What are Noble gases? In which group of periodic table, they have been
placed?

nh?kZ mÙkjh; ç'u /Long Answer Type Questions
ç'u la[;k 21 ls 26 nh?kZ mÙkjh; gSaA fdUgha 3 ç'uks ds mÙkj nsaA çR;sd ds fy, 5
vad fu/kkZfjr gSA 3 × 5 = 15
Question Nos. 21 to 26 are long Answer Type. Answer any 3 Questions. Each
Question carries 5 marks. 3 × 5 = 15
21.
(A) jkWoy dk fu;e D;k gS\ 2
What is Raoult’s law?
(B) ok"i nkc ds vkisf{kd voueu ls fdlh foys; ds vkf.od æO;eku ds
fu/kkZj.k ds fy, O;atd çkIr djsaA 3
Obtain an expression for the determination of molecular mass of a
solute from relative lowering of Vapour pressure.
22.
(A) vfHkfØ;k dh v.kqdrk ,oa vfHkfØ;k dh dksfV esa varj crk;saA 2
Differentiate between order lsof reaction and molecularity of a
reaction.
(B) Yk;ksfQfyd ,oa yk;ksQk¡fcd lk¡y esa foHksn djsaA 3
Differentiate between Lyophilic and Lyophobic sols.
23.c‚DlkbV v;Ld ls ,Y;qehfu;e ds fu"d"kZ.k dh fof/k dks la{ksi esa fy[ksaA 5

Page 23 of 24

Write in brief the process of extraction of Al from Bauxite ore.
24.vk;ksMhu ds eq[; lzksr D;k gSa\ bls leqæh ?kkl ls dSls çkIr fd;k tkrk gS 5
What are the main sources of Iodine? How is it extracted from sea
weeds?
25.fuEufyf[kr ij laf{kIr fVIi.kh fy[ks%a 2×2 =5

Write short notes on the following:
(A) jkstsueaqM vodj.k
Rosenmund reduction
(B) ifdZu vfHkfØ;k
Perkin’s reaction
26.fuEufyf[kr ifjoÙkZu dSls fd;s tkrs gSa\ 2×2 = 5

How are following conversions brought about?
(A) ,lhfVyhu ls vk;ksMksQ‚eZ
Acetylene to Iodoform

(B) ,lhfVd vEy ls ,slhVksu

Acetic acid to Acetone

Page 24 of 24

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