Hydrogen bond is a weak bond formed between hydrogen atoms and highly electronegative elements. It is of two types - intermolecular and intramolecular. It is a weaker bond than ionic, covalent and metallic bonds.
Which is a correct statement?

Options

A. Keto form of acetoacetic ester involves hydrogen bonding.
B. In water vapour, hydrogen bonding exists.
C. For first ionisation, maleic acid is a stronger acid than fumaric acid. This can be explained on the basis of concept of hydrogen bonding.
D. Boiling point of HCl is higher than that of HF.

Answer

C

Explanation

(A) Statement (a) is wrong. The correct statement should be: Enol form of acetoacetic ester involves in H-bonding.

(B) The correct statement should be: H-bonding exists in liquid water.
(C ) It is a correct statement.

(D) The correct statement should be: Bonding point of HF `gt` boiling point of HCl due to intermolecular H-bonding in HF.