Coordination Compounds - Result Question 39
####41. What is the correct electronic configuration of the central atom in $K_4[Fe(CN)_6]$ based on crystal field theory?
[2019]
(a) $t _{2 g}^{4} e_g^{2}$
(b) $t _{2 g}^{6} e_g^{0}$
(c) $e_g^{3} t _{2 g}^{3}$
(d) $e_g^{4} t _{2 g}^{2}$
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Solution:
- (b)
$CN^{-}$is a strong field ligand and causes pairing of electrons.