State of Matter UPSC Questions

Chemistry

State of Matter MCQ Questions


7.

Energy of hydrogen bond varies between _____________ kJ molˉ¹

A.

10 to 1000

B.

10 to 100

C.

100 to 200

D.

1000 to 10000

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ANSWER :

B. 10 to 100

8.
Strength of the hydrogen bond is determined by the coulombic interaction between the _____ electrons of the electronegative atom of one molecule and the hydrogen atom of other molecule.
A.
Dipole
B.
Bonded molecule
C.
Bonded atom
D.
Lone-pair
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ANSWER :
D. Lone-pair
9.
Magnitude of the repulsion rises very rapidly as the distance separating the molecules _____
A.
Forward
B.
Rises
C.
Decreases
D.
Increases
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ANSWER :
C. Decreases
10.
Which energy is the energy of a body arising from motion of its atoms or molecules?
A.
Thermal energy
B.
Tidal energy
C.
Solar energy
D.
Nuclear energy
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ANSWER :
A. Thermal energy
11.
Three states of matter are the result of balance between intermolecular forces and _____ of the molecules.
A.
Thermal energy
B.
Tidal energy
C.
Solar energy
D.
Nuclear energy
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ANSWER :
A. Thermal energy
12.
What is the order of the predominance of intermolecular interactions?
A.
Solid->Liquid->Gas
B.
Gas->Liquid->Solid
C.
Gas->Solid->Liquid
D.
Liquid->Gas->Solid
😑 View Answer Rough Work Error
ANSWER :
B. Gas->Liquid->Solid