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

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

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

Which one of hte folowing is used for storing biological tissues?

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

Which one among the following separation techniques is used for blood tests in diagnostic laboratories?