Which among the following purification methods is based on the principle of "Solubility" in two different solvents?

The correct match between items of List-$I$ and List-$II$ is

List-$I$	List-$II$
$A$. Coloured impurity	$(p)$. Steam distillation
$B$. Mixture of $o-$nitrophenol and $p-$nitrophenol	$(q)$. Fractional distillation
$C$. Crude naphtha	$(r)$. Charcoal treatment
$D$. Mixture of glycerol and sugars	$(s)$. Distillation under reduced pressure

Identify the correct statements from the following:
$(i)$ Electromeric effect is a permanent effect.
$(ii)$ Hyperconjugation is a temporary effect.
$(iii)$ Fractional distillation is used to separate two liquids from a mixture if the difference in their boiling points is less.
$(iv)$ Different compounds are adsorbed on an adsorbent to different extents.

What is chromatography used for?

To separate different fractions of crude oil in the petroleum industry,the method used is:

$A$ liquid compound $(x)$ can be purified by steam distillation only if it is