Question

Which of the following compounds will experience hydrogen bonding?

Answer 1

I believe the answer is the first one NaH

Answer 2

Answer:

HF will experience hydrogen bonding

Explanation:

Hydrogen bonding (H-bonding) is an intermolecular force having partial ionic-covalent character. H-bonding takes place between a hydrogen atom (attached with an electronegative atom e.g. O, N and F) and an electronegative atom (O,N and F).

Hydrogen bonding generally appears in covalent molecules.

Among all four given molecules, HF and $CH_{4}$ are covalent molecules.

In HF, F is a highly electronegative atom attached to a H atom through a covalent bond. Therefore F atoms gets partial negative charge and H atoms gets partial positive charge.

Hence an interaction arises between H atom and F atom resulting formation of H-bonding.