In an aniline and water mixture,aniline can be separated by:

Choose the statement that is true about $A$,$B$ and $C$ in the following separation scheme.

Given below are two statements:
Statement-$I$: Retardation factor $(R_f)$ can be measured in $meter/centimeter$.
Statement-$II$: $R_f$ value of a compound remains constant in all solvents.
Choose the most appropriate answer from the options given below:

Which purification method is generally used for a high boiling organic liquid compound,which decomposes below its boiling point?

Using the given figure,the ratio of $R_f$ values of sample $A$ and sample $C$ is $x \times 10^{-2}$. The value of $x$ is . . . . . . . .
Table: Paper chromatography of Samples
| Component | Distance from base line (cm) |
| :--- | :--- |
| Sample $A$ | $5.0$ |
| Sample $B$ | $6.5$ |
| Sample $C$ | $10.0$ |
| Solvent front | $12.5$ |

Consider the following table$-$

Column-$I$	Column-$II$
$(A).$ Best and latest technique for isolation,purification and separation of organic compounds	$(i).$ Chromatography
$(B).$ In Lassaigne's test for $N$	$(ii).$ Vacuum distillation (distillation under reduced pressure)
$(C).$ In Lassaigne's test for $S$	$(iii).$ Violet coloured complex is formed
$(D).$ Aniline is purified from water by	$(iv).$ Prussian blue coloured complex is formed
$(E).$ Glycerol is purified from spent lye	$(v).$ Steam distillation

The correct match is $-$