nature of matter and composition - Category wise Question and Answer Practice Test with Solutions

Question : 6

When a gas is compressed keeping temperature constant, it results in

a) decrease in speed of gaseous molecules

b) increase in speed of gaseous molecules

c) increase in collision among gaseous molecules

d) decrease in collision among gaseous molecules.

Question : 7 [UPPCS]

Blue vitriol is

a) Iron sulphate

b) Copper sulphate

c) Calcium sulphate

d) Sodium sulphate

Question : 8

Amalgam is a solution of

a) liquid in solid

b) solid in solid

c) solid in liquid

d) liquid in liquid

Question : 9 [NDA]

What is the term used to denote the critical temperature at which the air becomes saturated with vapour and below which the condensation is likely to begin ?

a) Dew point

b) Condensation point

c) Evaporation point

d) Point of critical temperature

Question : 10

Camphor can be purified by

a) sedimentation

b) filtration

c) distillation

d) sublimation