What method can be used for the separation of two volatile liquids that have a significant difference in their boiling points?

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 type of mixture can be separated by methods like filtration,crystallization,and distillation? Explain.

Describe the method,which can be used to separate two compounds with different solubilities in a solvent $S$.

Describe the characteristics of matter based on its different physical states.

Define an element and provide examples.