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Published on: 05/12/2020
10th Standard Science English Medium Free Online Test Creative 1 Mark Questions Part - One
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Auxins were identified by ______
Darwin
Kogi
Went
Funk
2.
The enzymes present in yeast is / are _____________
invertase
zymase
both (a) and (b)
neither (a) nor (b)
3.
Pick out the metal that displaces hydrogen from hydrochloric acid.
Zinc
Silver
Copper
Gold
4.
All the substances will undergo the following changes like _____ when heated.
increase in temperature
expansion of substance
change of state
all the above
5.
Chain reaction is possible only when the loss of neutrons is ________ the neutrons produced.
less than
greater than
equal to
independent of
6.
7.
An object is placed at 12 cm from a convex lens whose focal length is 10 cm. The image must
Virtual and enlarged
real and reduced in size
virtual and reduced size
real and enlarged size
8.
The speed of sound in air is 300 m/s. What is the frequency as heard by the human ear?
0.001 Hz
1 Hz
10,000 Hz
1,00,000 Hz
9.
When light travels from rarer to denser medium, the refracted ray is ______ the normal.
bent away
along
bent towards
just grazes the surface of separation
10.
The chemical symbol of Iron is _________________
I
Ir
FE
Fe
11.
Modern periodic law is based on __________
atomic mass
atomic number
number of neutrons
Both (a) and (b)
12.
Normal gestation period of human last for about ________days
280
380
480
580
13.
14.
The weight of a molecule of the compound C60H122 is:
1.4 x 10-21g
1.09 x 10-21g
5.025 x 1023g
16.023 x 1023g
15.
The ball is thrown up, the value of g will be
zero
+ve
-ve
negligible
16.
How many terminals an electric bulb consist of?
2
4
3
1
17.
Which of the following statement regarding an atom is always correct?
An atom has equal number of electrons and protons
An atom has equal number of electrons and neutrons
An atom has equal number of electrons, protons and neutrons
An atom has equal number of protons and neutrons
18.
The relation between potential difference (V) and current (I) is:
V \(\alpha\)I
V\(\alpha\)I2
V\(\alpha\)\(\frac{I}{I}\)
None of the above
19.
The resistance of a body to change its state of motion is called
force
momentum
inertia of motion
inertia of direction
1.
(c)
Went
2.
(c)
both (a) and (b)
3.
(a)
Zinc
4.
(d)
all the above
5.
(a)
less than
6.
(a)
7.
(d)
real and enlarged size
8.
(c)
10,000 Hz
9.
(c)
bent towards
10.
(d)
Fe
11.
(b)
atomic number
12.
(a)
280
13.
(d)
14.
(a)
1.4 x 10-21g
15.
(c)
-ve
16.
(a)
2
17.
(a)
An atom has equal number of electrons and protons
18.
(a)
V \(\alpha\)I
19.
(c)
inertia of motion
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
