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(C) The magnitude of $\Delta_{0}$ depends on the nature of the ligand and the oxidation state of the central metal ion.According to the spectrochemica

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$[Co(Cl)_{6}]^{3-}$

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(C) The magnitude of $\Delta_{0}$ depends on the nature of the ligand and the oxidation state of the central metal ion.According to the spectrochemical series,the field strength of the ligands is $Cl^{-} Ligands with lower field strength result in a smaller crystal field splitting energy $(\Delta_{0})$.Since $Cl^{-}$ is the weakest field ligand among the given options,the complex $[Co(Cl)_{6}]^{3-}$ will have the minimum magnitude of $\Delta_{0}$.

$I$. $H_2O$	$II$. $CO$
$III$. $NH_3$	$IV$. $I^{-}$
$V$. $F^{-}$

The complex ion having minimum magnitude of $\Delta_{0}$ $(CFSE)$ is

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$[Pd(F)(Cl)(Br)(I)]^{2-}$ has $n$ number of geometrical isomers. Then,the spin-only magnetic moment and crystal field stabilisation energy $[CFSE]$ of $[Fe(CN)_6]^{n-6}$ are
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The order of energy absorbed,which is responsible for the color of the following complexes,is:

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