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BITSAT2024ChemistryChemical Bonding and Molecular StructureActual

The hybridisation scheme for the central atom includes a d -orbital contribution in

Options

  1. AI ₃⁻
  2. BPCl ₃
  3. CNO ₃⁻
  4. DH ₂ Se

Correct answer

A. I ₃⁻

Step-by-step solution

I ₃⁻ is linear with central iodine atom undergoing s p^3 d -hybridisation and three lone pairs occupying equatorial position. Thus, this structure include d -orbital contribution to the hybridisation scheme. The structure is, PCl ₃ structure is s p^3 -hybridised with one lone pair. NO ₃⁻ is s p^2 -hybridised and H ₂ Se is s p^3 - hybridised with two lone pairs of Se atom.

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