Question

Assertion :Benzene (boiling point $353K$) and methanol (boiling point $338K$) are separated by simple distillation. Reason: Fractional distillation is used to separate two liquids from their mixture when their boiling points differ by $25K$ or less.

• A. Assertion and reason both are correct statements and reason is the correct explanation for assertion.
• B. Assertion and reason both are correct statements but the reason is not the correct explanation for assertion.
• C. Assertion is wrong statement but reason is correct statement.
• D. Assertion and reason both are wrong statements

Answer 1

The correct option is C Assertion is wrong statement but reason is correct statement.

Benzene and methanol cannot be separated by simple distillation as the difference in their boiling points are less than 25 $K$. Simple distillation is used when the difference in the boiling points is in the range 25-50 $K$.

When the difference is less than 25 $K$, fractional distillation is used.
Hence, the assertion is incorrect and the reason is correct.