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Chemistry · PYQ NEET UG 2019(1)
हिन्दीWhat is the CORRECT electronic configuration of the central atom in \( \text{K}_4[\text{Fe(CN)}_6] \) based on crystal field theory?
Correct answer · Option 1
\( t_{2\text{g}}^6 e_{\text{g}}^0 \)
Explanation
In \( [\text{Fe(CN)}_6]^{4-} \), Fe is in \( +2 \) oxidation state (\( 3d^6 \)). Since \( \text{CN}^- \) is a strong field ligand, pairing occurs, giving \( t_{2\text{g}}^6 e_{\text{g}}^0 \).
