A) The \[d{{x}^{2}}-{{y}^{2}}\] and \[d{{z}^{2}}\] orbitals has more energy as compared to \[{{d}_{xy}},{{d}_{yz}}\] and \[{{d}_{xz}}\] orbitals.
B) Crystal field splitting energy \[({{\Delta }_{o}})\] depends directly on the charge of the metal ion and on the field produced by the ligand.
C) In the presence of \[B{{r}^{-}}\] as a ligand the distribution of electrons for \[{{d}^{4}}\] configuration will be \[t_{{{2}_{g}}}^{3},e_{g}^{1},\]
D) In the presence of \[C{{N}^{-}}\] as a ligand \[{{\Delta }_{o}}<P\].
Correct Answer: D
Solution :
[d] \[C{{N}^{-}}\] is a strong field ligand and form low spin complexes thus \[{{\Delta }_{o}}>P\].
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