A transition metal (M) among Mn , Cr , Co and Fe has the highest … - Vidyadip

Question

A transition metal (M) among $Mn , Cr , Co$ and Fe has the highest standard electrode potential $\left( M ^{3+} / M ^{2+}\right)$. It forms a metal complex of the type $\left[ M ( CN )_6\right]^4$. The number of electrons present in the $e _{ g }$ orbital of the complex is __________ .

✓

Answer

(1)
Explanation:
Co has highest standard electrode potential $\left( M ^{+3} / M ^{+2}\right)$ among $Mn , Cr , Co , Fe$
$\therefore$ Complex is $\left[ Co ( CN )_6\right]^4$ and its splitting is as follows.

$\therefore$ electron in $e _{ g }$ orbital is one.

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