What are the fundamental components of matter?

Which of the following is an example of a heterogeneous mixture?

How is the pure liquid separated from a mixture obtained by vapour distillation?

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

Given below are two statements :
Statement-$I$: Sublimation is used for the separation and purification of compounds with low melting point.
Statement-$II$: The boiling point of a liquid increases as the external pressure is reduced.
In the light of the above statements, choose the correct answer from the options given below :

Which method is used to separate a mixture of $KCl$ and $KClO_3$?