Glycerol boils at $290\,^{\circ}C$ with slight decomposition. Impure glycerine can be purified by

Given below are two statements:
Statement $I$: Vapours of the liquid with higher boiling point condense before vapours of the liquid with lower boiling points in fractional distillation.
Statement $II$: The vapours rising up in the fractionating column become richer in high boiling component of the mixture.

Match the type of mixture of compounds in Column-$I$ with the technique of separation/purification given in Column-$II$.

Column-$I$	Column-$II$
$A$. Two solids which have different solubilities in a solvent and which do not undergo reaction when dissolved in it	$1$. Crystallisation
$B$. Liquid that decomposes at its boiling point	$2$. Distillation under reduced pressure
$C$. Steam volatile liquid	$3$. Steam distillation
$D$. Two liquids which have boiling points close to each other	$4$. Fractional distillation
$E$. Two liquids with large difference in boiling points	$5$. Simple distillation

$A$ liquid contains a non-volatile impurity. Which technique will be applied for its purification?

Describe the crystallisation technique used for the purification of organic compounds.

On which principle does the solute move on chromatography paper?