Physical Chemistry UPSC Questions

Chemistry

Physical Chemistry MCQ Questions


7.
Consider the following:
1. Carbon monoxide
2. Nitrogen oxide
3. Ozone
4. Sulphur dioxide
Excess of which of the above in the environment is/are the cause(s) of acid rain?
UPSC - 2022
A.
1, 2 and 3
B.
2 and 4 only
C.
4 only
D.
1, 3 and 4
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ANSWER :
B. 2 and 4 only
8.
Statement: When we make tea, coffee, or lemonade, particles of one type of matter get into spaces between particles of the other.
Question: This shows that there is enough _____ between particles of matter.
A.
Space
B.
Time
C.
Activity
D.
Reaction
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ANSWER :
A. Space
9.
The particles of matter possess _____, and hence they are continuously moving.
A.
Potential energy
B.
Kinetic energy
C.
Electrical energy
D.
Solar energy
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ANSWER :
B. Kinetic energy
10.
The increase in temperature _____ the kinetic energy of the particles.
A.
Degenerates
B.
Decelerates
C.
Decreases
D.
Increases
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ANSWER :
D. Increases
11.
What is the intermixing of particles of two different types of matter called?
A.
Acceleration
B.
Diversion
C.
Diffusion
D.
None of the above
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ANSWER :
C. Diffusion
12.
Statement: Take some water in a container, try cutting the surface of water with your fingers.
Question: What could be the reason behind the surface of water remaining together?
A.
Force acting between the particles
B.
Energy
C.
Fuel
D.
Solution
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ANSWER :
A. Force acting between the particles