Question

Which of the following molecules(s) show/s paramagnetic behavior?

• A. $\mathrm{O}_{2}$
• B. $\mathrm{N}_{2}$
• C. $\mathrm{F}_{2}$
• D. $\mathrm{S}_{2}$

Hint:

Molecules with unpaired electrons are paramagnetic.

Answer 1

The Correct Option is D

1. Number of unpaired electrons: 
- (A) $\mathrm{O}_{2}$: 2 
- (B) $\mathrm{N}_{2}$: 0 
- (C) $\mathrm{F}_{2}$: 0 
- (D) $\mathrm{S}_{2}$: 2 
- (E) $\mathrm{Cl}_{2}$: 0 
2. Paramagnetic behavior: - Molecules with unpaired electrons exhibit paramagnetic behavior. 
- Therefore, $\mathrm{O}_{2}$ and $\mathrm{S}_{2}$ are paramagnetic. 
Therefore, the correct answer is (4) A & D only.