Ethylene has a high $b.p.$ and high vapour pressure at $100\,^{\circ}C$ and does not dissolve in water. Hence,ethylene is separated by this method:

Identify the correct statements from the following:
$(i)$ Electromeric effect is a permanent effect.
$(ii)$ Hyperconjugation is a temporary effect.
$(iii)$ Fractional distillation is used to separate two liquids from a mixture if the difference in their boiling points is less.
$(iv)$ Different compounds are adsorbed on an adsorbent to different extents.

Give the difference between paper chromatography and thin layer chromatography.

Chromatography is used for the purification of:

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

List-$I$	List-$II$
$(A)$ Chloroform and Aniline	$(I)$ Steam distillation
$(B)$ Benzoic acid and Naphthalene	$(II)$ Sublimation
$(C)$ Water and Aniline	$(III)$ Distillation
$(D)$ Naphthalene and Sodium chloride	$(IV)$ Crystallisation

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