$A$ dilute solution of $HCl$ cannot be concentrated beyond ...... $\%$ by boiling.

Assertion : Azeotropic mixtures are formed only by non-$ideal$ solutions and they may have boiling points either greater than both components or less than both the components.
Reason : The composition of the vapour phase is same as that of the liquid phase of an azeotropic mixture.

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

Which one of the following is the correct statement? If an azeotropic solution of two liquids has a boiling point higher than both of them,then it:

The vapour of which liquid is present at the upper and lower side of the distillation column?

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: