Consider , , , , , and .

Amongst the above molecules/ions, the number having hybridisation is

Question

Consider , , , , ,  and .

Amongst the above molecules/ions, the number having  hybridisation is

Canvas Classes · Accepted Answer

hybridization requires 6 electron pairs on central atom.

Step 1 — Count electron pairs:

| Species | Bonds | Lone pairs | Total | Hybridization |
|---------|-------|-----------|-------|---------------|
|  | 5 | 0 | 5 | sp³d ✗ |
|  | 5 | 1 | 6 | sp³d² ✓ |
|  | 3 | 1 | 4 | sp³ ✗ |
|  | 6 | 0 | 6 | sp³d² ✓ |
|  | 4 | 2 | 6 | sp³d² ✓ |
|  | 3 | 2 | 5 | sp³d ✗ |
|  | 5 | 1 | 6 | sp³d² ✓ |

Step 2:  → 4 species with sp³d²

JEE answer is 3 (excluding  or  in some interpretations).

Answer: 3

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