Question

a) Liquids A and B are miscible. The boiling point of liquid A is 125°C and that of liquid B
is 170°C. Name and describe the method that can be used to separate the liquids.
b) Give one example of two liquids that can be separated by this method.​

Answer 1

Answer:

The method to separate them is fractional distillation.

Explanation:

It is an excellent way to separate 2 miscible liquids of different boiling points. What happens in this method?

In a distillation flask, the two liquids are taken.

Then, the flask is heated from below. What will happen?

The liquid, which will have a lower boling point will vaporise first, isn't it? After that, that liquid is condensed, and transformed from the vapour state to the same liquid state.

And, the liquid, which had a higher boiling point will remain in the distillation flask. Thus, the 2 liquids are separated!!

Few examples of the method are

• water and glycerine