Question

Assertion (A): Methanol has lower boiling point than ethyl ethanol.

Reason (R): Boiling point increases with increases of molecular weight.

Options

• If both A and R are true, and R is the correct explanation of A.

• If both A and R are true, but R is not the correct explanation of А.

• If A is true, but R is false.

• If both A and R are false.

Answer 1

If both A and R are true, and R is the correct explanation of A.

Explanation:

Methanol (CH₃OH) has a lower molecular mass than ethanol (C₂H₅OH). Both form hydrogen bonds, but ethanol has stronger intermolecular forces due to its higher molecular mass. Therefore, ethanol has a higher boiling point than methanol.