Question

Assertion: Boiling and melting points of amides are higher than corresponding acids.

Reason : It is due to strong intermolecular hydrogen bonding in their molecules.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

The correct option is: (a)

Explanation:

Amides are R -CONH₂

Acids are R-COOH

Due to the presence of -NH₂ group in amides there is stronger hydrogen bonding between the amide molecules than that between the acid molecules. Some acids are rather present in dimer form due to the presence of intermolecular hydrogen bonding.