The technique used for purification of steam volatile water immiscible substances is:

$p-$nitrophenol and $o-$nitrophenol are separated by

What is chromatography used for?

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

Given below are two statements $:$
Statement $(I) :$ In partition chromatography,stationary phase is a thin film of liquid present on an inert support.
Statement $(II) :$ In paper chromatography,the material of the paper acts as a stationary phase.
In the light of the above statements,choose the correct answer from the options given below $:$

Explain why an organic liquid vaporises at a temperature below its boiling point during steam distillation.