Absolute ethanol cannot be obtained by simple fractional distillation of a solution of ethanol and water because:

An azeotropic solution of two liquids has a boiling point lower than either of them when it:

Rectified spirit obtained by fermentation contains $4.5 \%$ of water. To remove this water,rectified spirit is mixed with a suitable quantity of benzene and heated. Benzene helps because:

Components of a binary mixture of two liquids $A$ and $B$ were being separated by distillation. After some time,the separation of components stopped and the composition of the vapour phase became the same as that of the liquid phase. Both the components started coming in the distillate. Explain why this happened.

Water (boiling point $100^\circ C$) and $HCl$ (boiling point $85^\circ C$) form an azeotropic mixture at $108.5^\circ C$. What is obtained when this mixture is distilled?

The boiling point of an azeotropic mixture of water and ethanol is less than that of both pure water and pure ethanol. The mixture shows: