Question

Melting point, boiling point and freezing point are respective properties of :

• A. solid, gas and liquid
• B. solid, liquid and liquid
• C. solid, liquid and gas
• D. liquid, solid and gas

Answer 1

Answer: (B)

solid, liquid and liquid

Pure, crystalline solids have a characteristic melting point, the temperature at which the solid melts to become a liquid.
Liquids have a characteristic temperature at which they turn into solids, known as their freezing point. In theory, the melting point of a solid should be the same as the freezing point of the liquid.
When a liquid is heated, it eventually reaches a temperature at which the vapor pressure is large enough that bubbles form inside the body of the liquid. This temperature is called the boiling point.