Matter around us can exist in three different states namely, solid, liquid and gas. Correct order of their compressibility is

The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its melting point. The melting point of a solid is an indication of

Which one of the following elements will not react with dilute HCl to produce H₂ ?

When a solid is heated, it turns directly into a gas. This process is called