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Chemistry - 9 Chapter - 6
State of Matter
Test - 6
1.
Why a gas can be compressed easily and solid and liquid cannot be?
a) Due to large distance between molecules of gas as compared to solid and liquid.
b) Due to small distance between molecules of gas as compared to solid and liquid.
2.
Forces of attraction between the molecules of a compound are called ____ forces.
a) Attractive
b) Bonding
c) Intermolecular
d) Cohesive
3.
Bonding forces are strongest among the molecules of gases?
a) False
b) True
4.
The melting point of a solid or boiling point of a liquid depends upon the strength of _____?
a) Bonding forces
b) Force of attraction
c) All are correct
d) Intermolecular forces
5.
Intermolecular forces are of ____ types.
a) 5
b) 2
c) 4
d) 3
6.
Intermolecular forces are called Vander walls forces.
a) False
b) True
7.
What is meant by dipole-dipole?
a) two-two poles
b) Two poles
c) One pole
8.
Usually dipole-dipole forces between molecules are weak. When these are quite strong, the forces are named as ____.
a) Hydrogen bonding
b) Intermolecular bonding
c) Cohesive bonding
9.
Hydrogen bonding is present in compounds in which hydrogen atom is bonded to any one of the very strong electronegative atoms, which are?
a) F, H or N
b) F, O or N
c) H, O or N
10.
Water is an example of hydrogen bonding.
a) False
b) True
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