State of Matter UPSC Questions

Chemistry

State of Matter MCQ Questions


7.
The ends of the dipole possess _____
A.
Partial charges
B.
Spatial charges
C.
Tightened charges
D.
None of the above
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ANSWER :
A. Partial charges
8.
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
9.
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
10.
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
11.
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
12.
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