(a) Enumerate any two differences between simple distillation and fractional distillation.
(b) Draw a labelled diagram showing the process of fractional distillation.

Explanation

(a) (i) Simple distillation can be used if the liquids to be separated differ in their boiling points by more than `25^(@)C`. If the difference is less, than fractional distillation can be used.
(ii) A fractionating column is needed for fractional distillation but not for simple distillation.
(b) For process of fractional distillation.