Given below are two statements:
Statement $I$: Vapours of the liquid with higher boiling point condense before vapours of the liquid with lower boiling points in fractional distillation.
Statement $II$: The vapours rising up in the fractionating column become richer in high boiling component of the mixture.

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.

$A$ mixture of three compounds $A, B, C$ is passed through a column of $Al_2O_3$ by using alcohol as eluant. The order in which they are eluted out of the column is $C, B, A$. Which of the following statements is true?

Which one of the following can be purified by sublimation?

In chromatography technique,the purification of a compound is independent of:

Explain partition chromatography. What is partition chromatography? Describe paper chromatography.