The azeotropic mixture of $HCl$ and water contains ...... $\%$ $HCl$.

Which of the following is a low-boiling azeotropic mixture?

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 boils at a temperature lower than the boiling point of any of its components. This solution shows:

The process of manufacture of absolute alcohol from rectified spirit is:

The mixture that forms a maximum boiling azeotrope is