Question

If there are 3 liquids having boiling points 25 K, 35 K and 50 K . Arrange in order of separation. *​

Answer 1

Explanation:

Liquids having different boiling points vaporize at different temperatures. The vapors are cooled and then liquids so formed are collected separately. Liquid A can be separated from B and C because of the large difference in boiling point. Liquid B and C have boiling points very close to each other and cannot be separated by simple distillation hence separated by fractional distillation. Liquid B distilled first because the order of boiling points of A,B and C are as follows: B<C<A, 

then it'll be 35, 25, 50