The number of species from the following which have square pyramidal structure is

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Canvas Classes · Accepted Answer

Square pyramidal geometry: 5 bonding pairs + 1 lone pair on central atom (6 total electron pairs, octahedral electron geometry).

Step 1 — Analyse each species:

| Species | Bonds | Lone pairs | Total | Shape |
|---------|-------|-----------|-------|-------|
|  | 5 | 0 | 5 | Trigonal bipyramidal |
|  | 4 | 2 | 6 | Square planar |
|  | 5 | 1 | 6 | Square pyramidal ✓ |
|  | 5 | 1 | 6 | Square pyramidal ✓ |
|  | 5 | 1 | 6 | Square pyramidal ✓ |
|  | 4 | 2 | 6 | Square planar |

Step 2: , ,  → 3 spe

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