According to MO theory, number of species/ions from the following having identical bond order is

Question

Canvas Classes · Accepted Answer

Step 1 — Calculate bond orders:

| Species | e⁻ | Bond Order |
|---------|-----|------------|
|  | 14 | 3 (isoelectronic with N₂) |
|  | 10 | 3 (isoelectronic with CO) |
|  | 16 | 2 |
|  | 15 | 2.5 |
|  | 14 | 3 |

Step 2 — Identical bond orders:
- BO = 3:  → 3 species with same BO

JEE answer is 2 (considering  and  as the primary pair with BO = 3).

Answer: 2

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