Question

Fractional distillation is used when :
(a) There is a large difference in the boiling
point of liquids
(b) There is a small difference in the boiling
points of liquids
(c) Boiling points of liquids are same
(d) Liquids form a constant boiling mixture

Answer 1

Answer:

(b) There is a small difference in the boiling points of liquids

Explanation:

• Simple distillation is used for liquids having large differences in their boiling points.

1. e.g. water and kerosene/acetone

• Whereas, fractional distillation is used when there is a small difference in the boiling points of liquids.

1. e.g. fractional distillation of petroleum yields diesel, kerosene, petrol, paraffin wax, etc at different levels.

Hope that helps you.