Correct Statements about Hydrogen Bonding | JEE Main Chemical Bonding

Correct Statements about Hydrogen Bonding

Question:
The correct statement(s) about hydrogen bonding is/are:

(A) Hydrogen bonding exists when hydrogen is covalently bonded to a highly electronegative atom.

(B) Intermolecular hydrogen bonding is present in o-nitrophenol.

(D) The magnitude of hydrogen bonding depends on the physical state of the compound.

(E) Hydrogen bonding has powerful effect on the structure and properties of compounds.

Correct Answer: A, D and E only

Explanation

Statement A: Correct. Hydrogen bonding occurs when hydrogen is directly bonded to highly electronegative atoms like F, O or N.

Statement B: Incorrect. o-Nitrophenol shows intramolecular hydrogen bonding, not intermolecular hydrogen bonding.

Statement C: Incorrect. HF shows intermolecular hydrogen bonding, not intramolecular.

Statement D: Correct. Strength of hydrogen bonding varies with physical state (solid, liquid or gaseous).

Statement E: Correct. Hydrogen bonding significantly affects boiling point, solubility, structure and other physical properties.

Hence, the correct statements are A, D and E.