Among the following,which liquid solution may form an azeotrope at a certain composition?

Absolute alcohol cannot be prepared by fractional distillation of rectified spirit since:

The boiling point of an azeotropic mixture of water-ethanol is less than that of both water and ethanol. Then

If two liquids $A$ and $B$ form a minimum boiling azeotrope at some specific composition,then which statement among the following is correct?

When rectified spirit and benzene are distilled together,the first fraction obtained is

Why is it not possible to obtain pure ethanol by fractional distillation? What general name is given to binary mixtures which show deviation from Raoult’s law and whose components cannot be separated by fractional distillation? How many types of such mixtures are there?