Question

Nitrogen differs from P, As, Sb and Bi in the following properties :

• A. It forms diatomic molecule.
• B. It is not able to extent its coordination number beyond four.
• C. Nitrogen does not function as a Lewis acid whereas P, As, Sb and Bi do so.
• D. In all the properties given above.

Answer 1

The correct option is D In all the properties given above.

As vacant d-orbital are present in P and other elements of this group except N so they can expand their valency and forms stable pentavalence product but due to absence of d-orbitals nitrogen cannot form pentavalence products.

It forms diatomic molecule $N_2$.
Nitrogen does not function as a Lewis acid due to absence of d-orbitals and it is a Lewis base due to presence of lone pair.