Which of the following compounds is used as an adsorbent in column chromatography?

Match List-$I$ with List-$II$:

List-$I$ $(\text{Mixture})$	List-$II$ $(\text{Method of Separation})$
$A. CHCl_3 + C_6H_5NH_2$	$I. \text{Distillation under reduced pressure}$
$B. \text{Crude oil in petroleum industry}$	$II. \text{Steam distillation}$
$C. \text{Glycerol from spent-lye}$	$III. \text{Fractional distillation}$
$D. \text{Aniline-water}$	$IV. \text{Simple distillation}$

Choose the correct answer from the options given below:

State whether the following statements regarding fractional distillation are True or False:
$(i)$ The freezing of vapour of a liquid with a high boiling point takes place first.
$(ii)$ In the column,the more volatile liquid is present in a higher concentration in the vapour phase at higher levels.
$(iii)$ The condensed liquid flows down and provides heat to the vaporizing liquid.
$(iv)$ The liquid with the highest boiling point reaches the top of the column.

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

The boiling point of aniline is $457 \ K$. At which temperature does aniline boil in simple distillation and in steam distillation?

In $TLC$ for compound $X$,$R_f = 0.7$ and for $B$,$R_f = 0.4$. Which substance migrates more?