STANDARDChemistry-Coordination Compounds

STANDARD Chemistry Crystal Field Theory MCQ Question

Type: MCQ-conceptual-Medium-Class 12

What is the correct electronic configuration of the central atom in K₄[Fe(CN)₆] based on crystal field theory?

A

e₄t₂²

B

t₂₄e₂g

C

t₂₆e₀g

D

e₃t₂³

Correct Answer

Option C

Detailed Explanation

In K₄[Fe(CN)₆] complex, Fe is in +2 oxidation state. As CN⁻ is a strong field ligand, it causes pairing of electrons, therefore, the electronic configuration of Fe²⁺ in K₄[CN]₆ is t₂₆e₀g.

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