The mixture of ethanol and water cannot be separated by simple distillation because:

When do azeotropic mixtures of two liquids boil at a temperature lower than their boiling points?

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.

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:

An azeotropic solution of two liquids is one that:

$A$ liquid mixture that boils without changing its composition is called: