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chemistry class 12 pyq

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this pdf contains all set of chemistry questions /pyq's which help students to excel in their upcoming class 12 exams this pdf an help students to excel in their examinations , all the best!

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  • August 27, 2024
  • 362
  • 2023/2024
  • Exam (elaborations)
  • Only questions
  • Secondary school
  • 5
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SET-1
Series HFG1E/1 àíZ-nÌ H$moS>
Q.P. Code 56/1/1
amob Z§.
narjmWu àíZ-nÌ H$moS> >H$mo CÎma-nwpñVH$m Ho$
Roll No. _wI-n¥ð >na Adí` {bIo§ &
Candidates must write the Q.P. Code
on the title page of the answer-book.


agm`Z {dkmZ (g¡ÕmpÝVH$)
CHEMISTRY (Theory)
:3 : 70
Time allowed : 3 hours Maximum Marks : 70


H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV n¥ð> 19 h¢ &
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE àíZ-nÌ H$moS> H$mo narjmWu CÎma-nwpñVH$m Ho$ _wI-n¥ð>
na {bI| &
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _| >35 àíZ h¢ &
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$
Adí` {bI| &
Bg àíZ-nÌ 15 {_ZQ >H$m g_` {X`m J`m h¡ & àíZ-nÌ H$m {dVaU
10.15 ~Oo {H$`m OmEJm & 10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db àíZ-nÌ H$mo
-nwpñVH$m na H$moB© CÎma Zht {bI|Jo &
Please check that this question paper contains 19 printed pages.
Q.P. Code given on the right hand side of the question paper should be
written on the title page of the answer-book by the candidate.
Please check that this question paper contains 35 questions.
Please write down the serial number of the question in the
answer-book before attempting it.
15 minute time has been allotted to read this question paper. The question
paper will be distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m.,
the students will read the question paper only and will not write any
answer on the answer-book during this period.
*
56/1/1 1 P.T.O.

, :
:
(i) 35
(ii)
(iii) 1 18
(iv) 19 25
(v) 26 30
(vi) 31 32
(vii) 33 35
(viii) 2 2
2 2


(ix)

IÊS> H$
1 18 18 1=18

1. ~hþbH$m| Am¡a àmoQ>rZm| Ho$ _moba Ðì`_mZ {ZYm©aU Ho$ {bE {ZåZ{b{IV _| go H$m¡Z -gm
AUwg§»` JwUY_© à`wº$ hmoVm h¡ ?
(a) namgaU Xm~
(b) {h_m§H$ _| AdZ_Z
(c) dmîn Xm~ H$m Amno{jH$ AdZ_Z
(d) `Z
2. A{YH$ D±$MmB© dmbr OJhm| na ahZo dmbo bmoJm| Ho$ é
{ZåZ hmoZo H$m H$maU h¡ :
(a)
(b) {ZåZ Vmn
(c) {ZåZ dm`w_§S>br` Xm~
(d)

56/1/1 2

,General Instructions :
Read the following instructions carefully and strictly follow them :
(i) This question paper contains 35 questions. All questions are compulsory.
(ii) This question paper is divided into five Sections A, B, C, D and E.
(iii) In Section A Questions no. 1 to 18 are multiple choice (MCQ) type questions,
carrying 1 mark each.
(iv) In Section B Questions no. 19 to 25 very short answer (VSA) type questions,
carrying 2 marks each.
(v) In Section C Questions no. 26 to 30 are short answer (SA) type questions,
carrying 3 marks each.
(vi) In Section D Questions no. 31 and 32 are case-based questions carrying
4 marks each.
(vii) In Section E Questions no. 33 to 35 are long answer (LA) type questions
carrying 5 marks each.
(viii) There is no overall choice. However, an internal choice has been provided in
2 questions in Section B, 2 questions in Section C, 2 questions in Section D and
2 questions in Section E.
(ix) Use of calculators is not allowed.

SECTION A

Questions no. 1 to 18 are Multiple Choice (MCQ) type Questions, carrying
1 mark each. 18 1=18

1. The colligative property used for the determination of molar mass of
polymers and proteins is :
(a) Osmotic pressure
(b) Depression in freezing point
(c) Relative lowering in vapour pressure
(d) Elevation is boiling point

2. Low concentration of oxygen in the blood and tissues of people living at
high altitude is due to :
(a) high atmospheric pressure
(b) low temperature
(c) low atmospheric pressure
(d) both low temperature and high atmospheric pressure

56/1/1 3 P.T.O.

, 3. {ZåZ{b{IV A{^{H«$`m Ho$ {bE ghr gob {Zê$nU h¡ :
Zn + 2Ag+ Zn2+ + 2Ag
(a) 2Ag Ag+ Zn Zn2+
(b) Ag+ Ag Zn2+ Zn
(c) Ag Ag+ Zn Zn2+
(d) Zn Zn2+ Ag+ Ag
4. EH$ ñdV: àd{V©V A{^{H«$`m Ho$ {bE G Am¡a E
gob hm|Jo :
(a) YZmË_H$, G$UmË_H$ (b) G$UmË_H$, G$UmË_H$
(c) G$UmË_H$, YZmË_H$$ (d) YZmË_H$, YZmË_H$
5. {ZåZ{b{IV _| go H$m¡Z-gm CËàoaH$ go à^m{dV hmoVm h¡ ?
(a) H (b) G
(c) Ea (d) S
h
6. H2 (g) + Cl2 (g) 2HCl (g) Ho$ {bE A{^{H«$`m H$mo{Q> h¡ :
(a) 2 (b) 1
(c) 0$ (d) 3$

7. b¢WoZm°BS> H$s gdm :
(a) +2 (b) +3
(c) +4 (d) +6
8. `m¡{JH$ [Co(SO4) (NH3)5] Br Am¡a [Co(Br) (NH3)5] SO4 {Zê${nV H$aVo h¢ :
(a) Y«wdU g_md`dVm (b) ~§YZr g_md`dVm
(c) Am`ZZ g_md`dVm (d) Cnghg§`moOZ g_md`dVm
9. EopëH$b âbwAmoamBS> H$m g§íbofU g~go AÀN>r Vah go àmßV {H$`m OmVm h¡ :
(a) _wº$ _ybH$m| go (b) ñdmQ>©²µO A{^{H«$`m go
(c) g¢S>_m`a A{^{H«$`m go (d) q\$Ho$bñQ>rZ A{^{H«$`m go
ZnCl 2
10. A{^{H«$`m R OH + HCl RCl + H2O _| EoëH$mohm°b H$s A{^{H«$`merbVm
H$m ghr H«$_ h¡ ?
(a) 1 <2 <3 (b) 1 >3 >2
(c) 1 >2 >3 (d) 3 >1 >2
56/1/1 4

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