Question

Azeotropic mixture of liquids can only be separated by

Answer 1

In azeotropic mixtures, composition in vapour state is same as that of liquid state. So simple physical methods can't seperate them. They can be selerated by:

1) Compounds like Zeolites are added. Zeolites are 3D silicates having honey comb like porous structure.

This selectively absorbs the solute from mixture which fits in to it's holes appropriately. Solvent being larger in size cannot enter the pores.

2) A third component is added to solution in appropriate amount. This creates new lower-boiling solution. The solution is then boiled to get pure solvent.