Question

All solids, on heating, first change to liquid and then to the gaseous state.

• A. True
• B. False

Answer 1

The correct option is B False

• Usually, when a solid substance melts, they often get converted into a liquid state.
• But this is not true for all solids, in some substances there occurs direct conversion of solid-state into a gaseous state. This process is known as sublimation.
• For example, camphor is solid and it gets directly converted into a gaseous state.
• When solids melt they often form a liquid, but this is not for all cases. In some solid substances there occurs direct conversion of a solid state to a gaseous state.

Therefore, the given statement is false.