The intermolecular spaces are minimum in case of

The boiling point of a liquid and the condensation point of its vapours have the same numerical value.

State if the following statement is True or False. Correct the false statement.

Molecules are closely packed in a gas.

State if the following statement is True or False. Correct the false statement.

Liquids have two free surfaces.

A pure substance is made up of only one kind of matter.

State if the following statement is true or false. Correct the false statement.

A known volume of any liquid poured into a container does not occupy the same volume.

Pick the odd one out. Give reasons for your answer.

Water, wood, air, sound.

Pick the odd one out. Give reasons for your answer.

Air, smoke, mercury, hydrogen, nitrogen