In which of the following complexes of the Co | vedclass

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(A) The magnitude of crystal field splitting energy $(\Delta_o)$ depends on the strength of the ligand field. According to the spectrochemical series,

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$[Co(CN)_6]^{3-}$

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(A) The magnitude of crystal field splitting energy $(\Delta_o)$ depends on the strength of the ligand field. According to the spectrochemical series,the strength of ligands increases in the order: $I^- Among the given ligands,$CN^-$ is the strongest field ligand. Therefore,the complex containing $CN^-$ will have the highest crystal field splitting energy. The order of $\Delta_o$ for the given complexes is: $[Co(H_2O)_6]^{3+} Thus,the correct option is $A$.

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

In which of the following complexes of the $Co$ (at. no. $27$),will the magnitude of $\Delta_o$ be the highest?

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