Physical Chemistry UPSC Questions

Chemistry

Physical Chemistry MCQ Questions


13.
The liquids have no fixed shape but have a fixed _____
A.
Shape
B.
Force
C.
Volume
D.
Energy
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ANSWER :
C. Volume
14.
Liquids flow and change shape, so they are not rigid but can be called _____
A.
Fluid
B.
Plasma
C.
Ions
D.
Sizes
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ANSWER :
A. Fluid
15.
The aquatic animals can breathe under water due to the presence of dissolved _____ in water
A.
Carbon-di-oxide
B.
Carbon-monoxide
C.
Methane
D.
Oxygen
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ANSWER :
D. Oxygen
16.
Between solids and liquids, which one has the higher rate of diffusion?
A.
Solids
B.
Liquids
C.
Both solids and liquids
D.
None of the above
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ANSWER :
B. Liquids
17.

Statement 1: The rate of diffusion of liquids is higher than that of solids.
Statement 2: This is due to the fact that in the liquid state, particles move freely and have greater space between each other as compared to particles in the solid state.

A.

Statement 1 is true, Statement 2 is true. Statement 2 explains the Statement 1.

B.

Statement 1 is true, Statement 2 is true. Statement 2 doesn't explain the Statement 1.

C.

Statement 1 is false, Statement 2 is true.

D.

Statement 1 is true, Statement 2 is false.

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ANSWER :

A. Statement 1 is true, Statement 2 is true. Statement 2 explains the Statement 1.

18.
Among solids, liquids, and gases, which one is highly compressible?
A.
Solids
B.
Liquids
C.
Gases
D.
None of the above
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ANSWER :
C. Gases