Question

The temperature at which the solid melts to become liquid at the atmospheric pressure is called :

• A. Melting point
• B. Boiling point
• C. Freezing point
• D. None of the above

Answer 1

The correct option is A

Melting point

Correct Answer: option(A)-Melting point

The explanation for the correct answer:

1. Melting Point:‘The temperature at which a solid substance melts and changes into a liquid at atmospheric pressure.
2. The melting point of ice on the Celsius scale of temperature is $0°\mathrm{c}$ i.e., zero degrees Celsius.
3. The melting point of a solid is an indication of the strength of the force of attraction between its particles.

The explanation for the incorrect answer:

Option(B)-Boiling point:

1. The temperature at which the pressure exerted by the surroundings upon a liquid is equaled by the pressure exerted by the vapor of the liquid.
2. The boiling point of water on the Celsius scale is$100°\mathrm{c}$.

Option(C)-Freezing point:

The temperature of a liquid at which it changes its state from liquid to solid at is called the freezing point.
Hence, correct answer is the temperature at which the solid melts to become liquid at the atmospheric pressure is called the Melting point-Option(A).