MP Board Class 12 Question Paper 2020 for Elements of Science

E-833 Roll No.

Higher Secondary Examination (Regular) --2020 .

1.,N*Sti WE At!
ELEMENTS OF SCIENCE
(Hindi & English Versions)

Total I Total Printed 1 Time : Maximum
Questions : 18 I Pages : 8 3 Hours Marks : 70

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Instruction' :
(i) MI questions are compulsory.
Question NOs. 1 to 4 are objective type questions. Each question carries S marks.
(i' Internal options are given in each Question Nos. 5 to 18.
(i Question Nos. 5 to 7 carry 2 marks each and answer is expected in about
30 words.
(C Question Nos. 8 to lo carry 3 marks each and answer is expected in about
75 words.
( i Question'Nos. 11 to 15 carry 4 marks each and answer is expected in about
120 words.
( Question Nos. 16 to 18 carry 5 marks each and answer is expected in about
150 ,words.

1 I HIM I P.T.O.
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5

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(iii) orerTr (iv) TP616

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crsz 'pi) t
(iii) tfrq (iv) tr

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(i) gat
(iii) trgr9

(4) itga t
(ii) fd,Mlaie Wet
(it) Eival

(z) Thud 41ri2t

(1) affn46 (P) — arfi (W)
war (t)

(ii) 611i6 (P) - mixt (t)
Tyrzf (W)

%Agit (k Watt)
(iii) ati-Vr (P) —
(H)

ziezi (H)
(iv) siftm (P) —
(k Watt)

631 / E-833 2 1111111141111111111111111 P.T.O.

se the correct options :

The book is a thing

(i) Self luminous (ii) Beam rays

(iii) Non-luminous (iv) Light

Laws of Reflection are

(i) One (ii)• Four

(iii) Five (iv) Two

Unit of pole strength is

(i) Weber (ii) Grain

(iii) Dyne (iv) Joule

Unit of electric energy is

(i) Joule (ii) Kilowatt hour

(iii) Watt (iv) Hour

Electric , power is

Work (W)
(i) Power (P).— Tinto (0

Time (t)
(ii) Power (P) = Work (W)

Kilowatt (k.W)
(iii) Power (P) = Hour (H)

Hour (H)
(iv) Power (P) — Kilowatt (LW)

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(4) sth-drser writ t is wren net, 3,T ter' aa-dr t
(6) aril ray fact t
(a) Trani 41 sive zstr *oar 37 zsn wt-6 t, wire* t
(%)'n ti4ylf et4 t

Fill in the blanks :
(a) The solution of known concentration is called
solution.
(b) Delta of a river is forted due to colloidal particles.
(c) Catalytic position is
(d) The substance that decreases the activity of catalyst is known as

(e) Coccus bacterial is

3 Ittw Awcr 4 zwr *IPAR :
5
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(a) Thui 4 rim 1166k mar t t %Rini
(V) ant zsr ceietreet RR' Nftwq
M %co 9717 fhtliq I
etN44 Taw wilA 1%-9-4 iA1 ?
cp
Write the answers in one sentence :
a
(a) Chlorosis disease occurs in plants due to deficiency of 'Which
element ?
(b) How many types of respiration in plants are ? Write.
(c) Write the botanical name of Potato.
(a) Write the name of vinegar.
(e) How many methods are there CO make artificial magnets ?
631 / E-833 4 1111111111RIIIIIIIIIIH1111111

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(a) tutu (1) q,14
(h) trim: 'fiAtila au zeiNegr
(c) etva.6.14 otg i.t.t.
(d) Wriieteit ofg te-la a
(0) ~CII 3 CIIAct (t S~tlliti~
(At fiwzrr
(vii)
C
Match the columns : C)
to B
I—
(a) i istard ( Carbon dioxide
(i=
(b) Photosynthesis (ii) Bacterial cell
(c) aspiration A.T.P.
(d) oplasm of8 Stomata
(e) colysis (t Cruciferae
-(alt Biological process
(vii) Nitrogen

n *nitt tr4 *kg I
Write le definition of virtual spectrt$1 and real spectrum.
ONTO /
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Write types of mirror.
lC
6 %IV Wet ? ti; vm-R tie fit t ? 2
What is Titration ? How many are ryties of Titration ?
/ OR
algagitiORMWR Thif t chia *1 RIR FAR I
Write names of any two kinds of volumetric analysis.

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7 verm t sup *RN I 2
Write two characteristics of catalysis.
/ OR
.stiz• tat Az8( tui tisimiRg I
Explain self catalysis by giving one example.

8 itrec t aft
Write about electric meter.
30011 if OR
urri Sit 3641Ef 5Prer timmiti4 I
Explain the heating effect of electric current.

9 urtwt tt Rlalael'CI (mitt 6) 3
Write characteristics of enzyme. (any six)
arm / OR
ealtm mirr crmyr tY eiffl7 %Mil I
Write difference between catalyst and enzyme.

10 KEI7 th"01 Ion cf a ITO zert/rff Thlriff Mtn I 3
Write any three factors affecting respiration.
autrat / OR
atmstswfm atm 01-ilars-41:m 4 am *Rig
Write difference behveen Aerobic respiration.and Anerobic respiration.

It TIC47 attack 11A711 4
Write laws of Reflection of light.
ertrar / OR
f0mTa ii t ? (494114q I
What is Prism ? Explain.

631 E.833 6 IIIIIIRIII III111111'1111III P.1'.0.

12 `.(rte' *, gut 1M iq I 4
Write properties of the Magnet.
atztin / OR
iasct uoti thl i fir/
Draw labelled diagram of Electric Bell.

13 1-4,-traR9cr k Sit 4 Am 4- Pas : 4
(I) We:9 , • (2) WE

(3) ta (4) row
Write in short about the following :
(1) agulation . (2) Emulsion
(3) 1 (4) Tyhdall
/ OR
*Ira tit6 4"144 \vimirt RP:9NR I
Write importance of colloids in daily life.

14 linv <R4c zfir <mall) IItl t 9 %vim q 4

Wrilee chemical formula and two uses of sodium carbonate and
sone ement.
OMIT / OR

4ft4few ;Ow * ‘1,414 Y air L. 1
e the uses of alcohol and acetic acid.

15 4 1/474 zrrA terf VR t 7 *mg mrr 4
Write any four diseases which spread by Bacteria and write
the rules of bacteria.
44111 / OR
iturpti ail 3t rl'i 4 traw %%It/ I (*I 'in)
Writi
ii he importance of bacteria in industries. (any four)

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16 Rip War al
, es Mb fb5 STI8R I 5
Draw labelled diagram of Electric Bulb.
Mat / OR p
m
sex e reef 4 40 ewi slglw 8R 60 zilz 28t Tgt 8f8fr48 4. Etilt 888
8/ 30 ft 4 %A 9,1;4 Nvrer alTel cn flirt?
ra
. There are 40 bulbs in a hostel. Every bulb is 60 watt. They are lighted
for 4 hours daily. How many units of electricity will be spent in 30 days ?

17 eke thet ai quf9 Wont 5
Description of Brassica campestris. 411.

Wear / OR
mt{ ratr eiVath rtrui wit ark wt Tr*
G
Write uses of any five medicinal plants afteP describing them.

18 aiwlctr a,wla,tm 4 amt faRaLi, I 5
Write difference between Transpiration and . lvaporation.
NtRft / OR

147Rizivr tibil TO ? Aa,i9T RRIITIT X51-1117M
What is photosynthesis ? Explain the importance of Photosynthesis.
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o
k.s>
a

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