Chemistry - Coordination Chemistry Question with Solution | TestHub

$100\mathrm{}\mathrm{m}\mathrm{L}$of$0.2\mathrm{}\mathrm{M}$solution means$0.02$moles of complex$\left(\because \frac{100}{1000}\times 0.2=0.02\right)$
$\left[\text{Cr}{\left({\text{H}}_2\text{O}\right)}_4{\text{Cl}}_2\right]\text{Cl}$has one ionizable$\mathrm{C}{\mathrm{l}}^{-}.$
$\therefore 0.02$moles of the complex precipitates the same amount of$\mathrm{A}\mathrm{g}\mathrm{C}\mathrm{l}$.
$\therefore$Millimoles of$\mathrm{A}\mathrm{g}\mathrm{C}\mathrm{l}$precipitated$=20$