Question

The melting point of a substance is equal to its boiling point.

• A. True
• B. False

Answer 1

The correct option is B False

1. Melting point: The fixed temperature at which solid changes into its liquid state on heating is called the melting point of the substance.
2. At this temperature, the molecules forming the substance are gaining enough kinetic energy to overcome the intermolecular forces which hold them in fixed positions and they gain the ability to move around.
3. Boiling point: The fixed temperature at which a liquid boils and changes into its gaseous state is called the boiling point.
4. At this temperature, the substance in the liquid phase enters the gas phase.

Hence, the given statement is false.