MP Board Class 10 Question Paper 2020 for Science

Serial Number El 0 Roll No.
CI : 22
Total No. of Questions

Total No. of Printed Pages : 8

P-914
High School, Examination (Regular) - 2020

SCIENCE
(Hindi & English Versions)

Time : 3 Hours ] [ Maximum Marks : 80

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Instructions :
(i) All questions are compulsory, but Internal options are given in question nos.
5 to 22.
(ii) Question No. 1 to 4 are objective type. Each question carries 1X5=5 marks.
Total marks are 5x4=20.
(iii) Marks of each question are indicated against it.
(iv) Answer question nos. 5 to 9 in about 30 words each.
(v) Answer question nos. 10 to 14 in about 75 words each.
(vi) Answer question nos. 15 to 19 in about 120 words each.
(vii) Answer question nos. 20 to 22 in about 150 words each.

200 / 1 11111111111 111111 1111111111 1111 1 11 11111111 1 11111111111 P.T.O.

1 fir Ittir : 1X5=5
e-d7 Li14d4I 1 r 4.)1 '1IcH t
(4) &ci-f -rtz Liqtql t 4TFT cbm-11 t
(() 1-kiVar # TR-ref 3-1-111T # t
() fq-7- f43-1-4it S.I. 4-11Act) t I
(() c4 t4 6T 1)L12.1-1 tc T[ %
Fill in the blanks
(a) Horizontal rows are known as
(b) Removal of wastes from the body is called
(c) We have more similarities with in evolutionary terms.
(d) S.I. unit of electric potential is
(e) The disposal of the waste is a serious problem.

1X5=5
(4)
(i) 2.3 t)41.
(ii) 1985
(iii) 1987
(iv) tfttM 3T1 "
(v)
(vi) t..(
(vii) Rfi4i if4zitTur
Match the column :
(A) (B)
(a) Vinegar (i) 2.3 cm
(b) Female (ii) 1985
(c) Sex Chromosome (iii) 1987
(d) Eyeball (iv) Acetic acid
(e) Ganga Action Plan (v) Oestrogen
(vi) Testosterone
(vii) Sex determination

200 / P-914 2 P.T.O.
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(i) Trktr (41 (ii) R444-1
(iv) .F4-
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(iii) c.11 fkq (iv) al-Rir c161

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(i) 25 Tire-T (ii) 25
(iii) 2.5 (iv) 2.5

Choose the correct alternative :
(a) Metal exists in liquid state -
(i) Mercury (ii) Sodium
(iii) Aluminium (iv) Zinc
(b) The Xylem in plants are responsible for -
(i) Transport of oxygen (ii) Transport of food
(iii) Transport of water (iv) Transport of acids.
(c) Name of Master gland is -
(i) Adrenal gland (ii) Pituitary gland
(iii) Insulin (iv) Thyroid gland
(d) S.I. unit of power of lens is -
(i) Meter (ii) Centimeter
(iii) Dioptre (iv) Kilometer
(e) The least distance of distinct vision for a young adult with normal vision
is about -
(i) 25 m (ii) 25 cm
(iii) 2.5 cm (iv) 2.5 m

200 / P-914 3 111111111111111111111111111 Ell I 11 111 11111111111111 1111 P.T.O.

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Write the answer in one sentence each :
(a) Write the name of equation in which there is an exchange of ions ID between
the reactants. C.2)
Or.)
(b) Write the pH value of pure water.
(c) Write the name of respiration that takes place in absence of air (oxygen).
(d) Write the unit of Electric Charge.
(e) Write the name of carbon, which are used in refrigerators and fire extinguishers.

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Why should a magnesium ribbon be cleaned before burning in
arr4i / OR
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Define exothermic chemical reaction.

6 w aIT fir Nitrq
Write the Mendeleev's Periodic law.
iii / OR
faftf7
Write Dobereiner's Traids law.

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A-q I
Define the "Selfpollination".
aP-NT / OR
cfq t ?
Why is reproduction essential ?

200 / P-914 4 111011111111111111111111111111111111111111111 RT.O.

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C. )
Define the Heredity. (Y)
N)
cy-)
/OR
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How is the sex of the child determined in human beings ?

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Define the focal length of a spherical mirror.
314-41 / OR

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Define the Magnification.
;')

)

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3.
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Define Corrosion and write twoways to prevent the corrosion.
)
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i-
A solution of a substance "X" iSY,:b.sed for whitewashing.
D
(a) Name the substance "X" ana:'rite its formula.
(b) Write the reaction of the s4.4ance with water.

11 1 =-41 cl) PT i i14) ci f 4 3
Draw a labelled diagram of refraction of light through a prism.
aTERT / OR
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Draw a raw diagram of scattering of light in colloidal solution.

200 / P-9 1 4 5 I111111111111II I 1111111111 1111 I 1111E111D 11111111 P.T.O.

12 yfZ1-Tafff ' clrit7 I 3
Define the Electric fuse.
.T?T-41 /OR
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Define the Galvanometer.

13 f4-tp" TIYET fo-itrq I
Write the principle of an electric motor.
3itT4T / OR
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Write the names of three sources of direct current.

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Draw a labelled diagram of Solar cooker.
3Ter4T / OR
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Draw a labelled diagram of bio-gas plant.

15 r &O--erzt
tcriit“ z-frEff -d-ftEr ctql \311d1 ? f-14)chtul Trfta. f4t17 I 4
Why should we store Plaster of Paris in a moisture—proof container ? Write its
equation.
3itT4T / OR
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Write the chemical name, formula and two uses of Bleaching Powder.

16 4)1 q\=1 ffft17 I 4
Write the names, formula and structural formula of first four Hydrocarbons.
4P-T / OR
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ct) tut
Define Hydrogenation and write its industrial application.

200 / P-914 6 11111111113111 11111 11111 1111 1 1111 1111111111 I III P.T.O.

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17 11-1-9. e-irci-1
What is the role of Saliva in the digestion of food ?
ZTRT41 / OR

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From where do plants get each of the raw materials required for photosynthesis ?

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irliscr
Draw a labelled diagram of Human Brain.
3Ter4T / OR

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Draw a labelled diagram of neuron.

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Write the four factors affecting the resistance of a Conductor.
aVRT / OR

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Draw any four symbols of the components used in electric circuit.

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Write any five physical properties of Metals.
3Ter4T / OR

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(a) Write the names of two metals which are the good conductor of heat.

(b) Define the sonorous, mineral and gangue.

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200 /P-914

21 TETt cb) -1RTW 51-qt mil
' fir wine ?
Why is vegetative propagation practi for growing some types of plants 9
Co
arzW) / OR
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ct

How does the embryo get nourishment inside the mother's body ?

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N) 2 lit -cftwud u i f 3t-4-4t tl.fl urr-d-r viict .`fil'A-q
-
(a) Define the power of Lens.
(b) Find the power of a concave lens of focal length 2 m.
co
W41-1) / OR
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(a) Define the radius of curvature Qf the spherical mirror.
(b) The radius of curvature of a sph'
t cal mirror is 20 cm. Find its focal length.
co
c=)
co

200 / P-914
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