Question

NOVEMBER REVISION EXAM(2020-2021)- SCIENCE MCQ TEST -X STD
MCQ TEST
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Email address *

Name of the Student *
Exam Number *
Class & Section *
X - A
X - B
X - C
1) Newton’s III law is applicable *
1 point
a) for a body is at rest
b) for a body in motion
c) both a & b
d) only for bodies with equal masses
2) The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be ____kg *
1 point
a) 4 M
b) 2M
c) M/4
d) M
3) Magnification of a convex lens is *
1 point
a) Positive
b) negative
c) either positive or negative
d) zero
4) The eye defect ‘presbyopia’ can be correctedby *
1 point
a) convex lens
b) concave lens
c) convex mirror
d) Bi focal lenses
5) Temperature is the average ___________of the molecules of a substance *
1 point
a) difference in K.E and P.E
b) sum of P.E and K.E
c) difference in T.E and P.E
d) difference in K.E and T.E
6) Mass of 1 mole of Nitrogen atom is *
1 point
a) 28 amu
b) 14 amu
c) 28 g
d) 14 g
7) One mole of any gas occupies ________ at S.T.P *
1 point
a) 22.4 litre
b) 22400 ml
c) Both (a) and (b)
d) None of these
8) In the alumino thermic process the role ofAl is _____. *
1 point
a) oxidizing agent
b) reducing agent
c) hydrogenating agent
d) sulphurising agent
9) ________ forms the basis of modern periodic table. *
1 point
a) Atomic number
b) Mass number
c) Both (a) and (b)
d) None of these
10) A 25% alcohol solution means *
1 point
a) 25 ml alcohol in 100 ml of water
b) 25 ml alcohol in 25 ml of water
c) 25 ml alcohol in 75 ml of water
d) 75 ml alcohol in 25 ml of water
11) Which is formed during anaerobic respiration? *
1 point
a) Carbohydrates
b) Ethyl alcohol
c) Acetyl COA
d) Pyruvate
12) Water which is absorbed by roots is transportated to aerial parts of the plant through ______ *
1 point
a) Cortex
b) Epidermis
c) Phloem
d) Xylem
13) The hormone which has a positive effect on apical dominance is ________ *
1 point
a) Cytokinin
b) Auxin
c) Gibberellin
d) Ethylene
14) Syngamy results in the formation of _____ *
1 point
a) Zoospores
b) Conidia
c) Zygote
d) Chlamydosores
15) The units from the backbone of the DNA *
1 point
a) 5 carbon sugar
b) Phosphate
c) Nitrogenous bases
d) Sugar phosphate
16) The body of leech has *
1 point
a) 23 segments
b) 33 segments
c) 38 segments
d) 30 segments
17) The blood sucking habit of leech is known as _________. *
1 point
a) Herbivorous
b) Cornivorous
c) Sanguvivorous
d) None of these
18) The wall of human heart is made of *
1 point
a) Endocardium
b) Epicardium
c) Myocardium
d) All of the above
19) ‘Heart of heart’ is called *
1 point
a) SA node
b) AV node
c) Purkinje fibres
d) Bundle of His
20) Node of Ranvier is found in *
1 point
(a) muscles
(b) axons
(c) dendrites
(d) cyton
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Answer 1

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