State of Matter UPSC Questions

Chemistry

State of Matter MCQ Questions


13.
What is the order of the predominance of thermal energy?
A.
Solid<-Liquid<-Gas
B.
Liquid<-Gas<-Solid
C.
Solid->Gas->Liquid
D.
Gas<-Liquid<-Solid
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ANSWER :
D. Gas<-Liquid<-Solid
14.
What is the lowermost layer of the atmosphere?
A.
Exosphere
B.
Lithosphere
C.
Troposphere
D.
Stratosphere
😑 View Answer Rough Work Error
ANSWER :
C. Troposphere
15.

Which of the following are the properties of the gaseous states?
a) Gases are highly compressible
b) Gases exert pressure equally in all directions
c) They have much lower density than the solids and liquids
d) They mix evenly and completely in all proportions without any mechanical fluid.

A.

All a,b,c,d

B.

Both a and b

C.

Only c

D.

None of the above

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ANSWER :

A. All a,b,c,d

16.
At constant temperature, the pressure of a fixed amount of gas varies _____ with its volume. This is called Boyle's Law.
A.
Directly
B.
Inversely
C.
Forward
D.
Backward
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ANSWER :
B. Inversely
17.
Kelvin scale of temperature is also called ______ of temperature and is used in all scientific works.
A.
Pressure scale
B.
Degree scale
C.
Temperature scale
D.
Thermodynamic scale
😑 View Answer Rough Work Error
ANSWER :
D. Thermodynamic scale
18.
The pressure remaining constant, the volume of a fixed mass of a gas is _____ proportional to its absolute temperature.
A.
Upward
B.
Inversely
C.
Directly
D.
Indirectly
😑 View Answer Rough Work Error
ANSWER :
C. Directly