Chlorination is a process used for water-purification. The disinfecting action of chlorine is mainly due to

Which one of the following processes is NOT useful for purification of solid impurities?

Which one of the following apparatus is used for separating benzene and water mixture ?

Consider the following statements about mixture : 1. A substance can be separated into other kinds of matter by any physical process. 2. Dissolved sodium chloride can be separated from water by the p…

Which of the following process/ processes release heat? (i) Condensation (ii) Vaporisation (iii) Freezing (iv) Melting Correct option is :

The evaporation of water increases under the following conditions :