Name a suitable technique of the components from a mixture of calcium sulphate and comphor.

Explanation

A mixture of `CaSO_(4)` and camphor can be separated by the following two methods :
(i) Camphor is sublimable but `CaSO_(4)` is not, therefore, sublimation of the mixture gives camphor on the sides of funnel while `CaSO_(4)` is left in the china dish.
(ii) Camphor is soluble in organic solvents like `CHCl_(3), C Cl_(4)` etc. while `CaSO_(4)` is not. Therefore, when the mixture is shaken with the solvent, camphor goes into solution while `CaSO_(4)` remains as residue. It is filtered and evaporation of solvent gives camphor.