Question

What is the difference between simple distillation and fractional distillation?

Answer 1

No.	Simple distillation	Fractional distillation
i.	If in a mixture the difference in boiling points of two liquids is appreciable/large, they are separated from each other using the simple distillation.	If in a mixture the difference in boiling points of two liquids is not appreciable/large, they are separated from each other using the fractional distillation.
ii.	Simple distillation assembly is used. e.g. Mixture of acetone (b.p. 329 K) and water (b.p. 373 K) can be separated by this method.	fractionating column is fitted in distillation assembly.  e.g.  Mixture of acetone (b.p. 329 K) and methanol (b.p. 337.7 K) can be separated by this method.