Among the following, the molecule expected to be stabilized by anion formation is: , , NO,

Question

Canvas Classes · Accepted Answer

Stabilized by anion formation means adding an electron increases the bond order.

Step 1 — Bond orders before and after adding e⁻:

| Molecule | BO | Anion | BO of anion | Stabilized? |
|----------|-----|-------|------------|-------------|
|  | 1 |  | 0.5 | No (decreases) |
|  | 2 |  | 2.5 | Yes ✓ |
|  | 2 |  | 1.5 | No (decreases) |
| NO | 2.5 |  | 2 | No (decreases) |

Step 2: Only  is stabilized by anion formation (e⁻ goes into bonding π MO).

Answer: Option (2) —

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