Question

The element that can form multiple bonds with itself from the following is

• A. Antimony
• B. Arsenic
• C. Phosphorus
• D. Nitrogen

Hint:

The ability to form \(p\pi-p\pi\) multiple bonds decreases down a group because atomic size increases and orbital overlap becomes less effective.

Answer 1

The Correct Option is D

Step 1: Relate p-orbital overlap to atom size.
Strong π-bonds need lateral overlap of p-orbitals, which is most effective for small atoms. Nitrogen, being the smallest Group 15 element, forms stable N=N and N≡N bonds. Larger P, As, Sb have diffuse orbitals, making multiple bonding unfavourable.

Step 2: Final Answer:
Nitrogen (option 4).