Which substance is used in the purification of bone charcoal?

$A$ chromatography column,packed with silica gel as the stationary phase,was used to separate a mixture of compounds consisting of $(A)$ benzanilide,$(B)$ aniline,and $(C)$ acetophenone. When the column is eluted with a mixture of solvents,hexane: ethyl acetate $(20: 80)$,the sequence of obtained compounds is:

Match List-$I$ with List-$II$.

List-$I$ (Purification technique)	List-$II$ (Mixture of organic compounds)
$(A)$ Distillation (simple)	$(I)$ Diesel + Petrol
$(B)$ Fractional distillation	$(II)$ Aniline + Water
$(C)$ Distillation under reduced pressure	$(III)$ Chloroform + Aniline
$(D)$ Steam distillation	$(IV)$ Glycerol + Spent-lye

Choose the correct answer from the options given below $:$

$A$ mixture of methyl alcohol and acetone can be separated by

The technique used for purification of steam volatile water immiscible substances is:

Which one of the following mixtures can be separated by steam distillation technique?