Question

The formation of a covalent bond between two atoms is favoured when:

P  both the atoms have a large difference in electronegativity

Q both the atoms have high electron affinity

R  both the atoms have high electronegativity

Options

• Only P.

• Only Q.

• Both P and Q.

• Both Q and R.

Answer 1

Both Q and R.

Explanation:

Covalent bond between two atoms is favoured when

1. The electronegativity difference between the combining atoms should either be zero or negligible.
2. Both the atoms should have high electron affinity.
3. Both the atoms should have high electronegativity.

Hence both Q and R are correct.