Question

Assertion(A): A mixture of acetone and methanol can be separated by fractional distillation.
Reason(R): The difference between their boiling points is very less.

• A. A is false but R is true.
• B. Both A and R are true and R is the correct explanation of A.
• C. A is true but R is false.
• D. Both A and R are true but R is not the correct explanation of A.

Answer 1

The correct option is B Both A and R are true and R is the correct explanation of A.

The boiling point of acetone is $56{}^{\circ }C$ and methanol is $64.7{}^{\circ }C$. The boiling point difference of acetone and methanol is only $8.7{}^{\circ }C$, which is very low. Mixtures of having a very low boiling point difference can be separated by fraction distillation. So, option A is correct.