Which are the types of chromatography?

Using column chromatography,a mixture of two compounds '$A$' and '$B$' was separated. '$A$' eluted first,this indicates '$B$' has

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

How will you separate a mixture of two organic compounds which have different solubilities in the same solvent?

State True or False for the following statements regarding steam distillation:
$(i)$ The liquid is boiled at a temperature lower than its normal boiling point.
$(ii)$ The vapour pressure of the liquid is less than the atmospheric pressure.
$(iii)$ The sum of the vapour pressure of the liquid and the vapour pressure of water is equal to the atmospheric pressure.
$(iv)$ The mixture of organic liquid and water is obtained as the distillate.
$(v)$ The condensation of the mixture of water vapour and organic liquid vapour takes place.

Chromatography is a valuable method for the separation,isolation,purification,and identification of the constituents of a mixture. It is based on the general principle of: