Chemistry - Coordination Chemistry Question with Solution | TestHub

${\stackrel{+6}{\text{Cr}}\stackrel{-2}{\text{O}}}_2{\stackrel{-1}{\text{Cl}}}_2$

$\begin{array}{l}\Rightarrow \mathrm{x}+2(-2)+2(-1)=0\\ \mathrm{x}=6\end{array}$

${\left[\stackrel{+3}{\text{Cr}}{\left(\text{CN}\right)}_6\right]}^{-3}$

$\begin{array}{l}\Rightarrow \mathrm{x}+6(-1)=-3\\ \mathrm{x}=3\end{array}$

${\stackrel{+3}{\text{Cr}}}_2{\stackrel{-2}{\text{O}}}_3$

$\begin{array}{l}\Rightarrow 2\mathrm{x}+3(-2)=0\\ \mathrm{x}=3\end{array}$

${\left[\stackrel{+7}{\text{Mn}}\stackrel{-2}{{\text{O}}_4}\right]}^{-1}$

$\begin{array}{l}\Rightarrow \mathrm{x}+4(-2)=-1\\ \mathrm{x}=+7\end{array}$