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AIIMS2001ChemistryChemical Bonding and Molecular Structure

In which of the following p -d bonding is possible?

Options

  1. ACO ₃ ²⁻
  2. BPO ₄ ³⁻
  3. CNO ₃⁻
  4. DNO ₂⁻

Correct answer

B. PO ₄ ³⁻

Step-by-step solution

Carbon, oxygen and nitrogen atoms do not have any d -orbital available. Therefore, in CO ₃²⁻, NO ₂⁻ and NO ₃⁻ , there is no possibility of p -d type of bonding. In PO ₄ ³⁻ phosphorus atom has vacant d -orbital available which is used to form p -d type of bonding with p -orbital of oxygen atom.

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