The molecules having square pyramidal geometry are:
Chemical Bonding · Class 11 · JEE Main Previous Year Question
The molecules having square pyramidal geometry are:
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- b
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- c
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- d
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🧠 Square pyramidal geometry: 5 bond pairs + 1 lone pair around the central atom (sp³d², with LP in equatorial position of the octahedral framework).
🗺️ Check each molecule:
: Br has 5 bonds + 1 LP = 6 e-pairs → sp³d² → square pyramidal ✓
: Xe has 4 Xe–F + 1 Xe=O + 1 LP = 6 e-pairs → sp³d² → square pyramidal ✓
: Sb has 5 bonds + 0 LP = 5 e-pairs → sp³d → trigonal bipyramidal ✗
: P has 5 bonds + 0 LP = 5 e-pairs → sp³d → trigonal bipyramidal ✗
⚡ Square pyramidal requires exactly 5 bonds + 1 LP on the central atom. SbF₅ and PCl₅ have no lone pair → trigonal bipyramidal.
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