Write the applications of chromatography.

The species that exhibits the highest $R_f$ value in a thin layer chromatogram using a non-polar solvent on a silica gel plate is

Chromatographic technique/s based on the principle of differential adsorption is/are:
$A$. Column chromatography
$B$. Thin layer chromatography
$C$. Paper chromatography
Choose the most appropriate answer from the options given below:

At what temperature and pressure does a liquid vaporize in steam distillation?

Match Column-$I$ and Column-$II$ with correct relation:

Column-$I$	Column-$II$
$(i)$ Differential extraction	$(p)$ High difference of boiling point
$(ii)$ Steam distillation	$(q)$ Separatory funnel
$(iii)$ Distillation at low pressure	$(r)$ Component of petroleum
$(iv)$ Simple distillation	$(s)$ Liquid decompose at high temperature
$(v)$ Fractional distillation	$(t)$ Vacuum pump

From the figure of column chromatography given below,identify the incorrect statements.
$A.$ Compound '$c$' is more polar than '$a$' and '$b$'
$B.$ Compound '$a$' is least polar
$C.$ Compound '$b$' comes out of the column before '$c$' and after '$a$'
$D.$ Compound '$a$' spends more time in the column
Choose the correct answer from the options given below :-