The number of isoelectronic species among $\mathrm{Sc}^{3+}, \mathrm{Cr}^{2+}, \mathrm{Mn}^{3+}, \ma

Question

The number of isoelectronic species among $\mathrm{Sc}^{3+}, \mathrm{Cr}^{2+}, \mathrm{Mn}^{3+}, \mathrm{Co}^{3+}$ and $\mathrm{Fe}^{3+}$ is ' $\mathrm{n}^{\prime}$. If ' $\mathrm{n}^{\prime}$ moles of AgCl is formed during the reaction of complex with formula $\mathrm{CoCl}_3(\mathrm{en})_2 \mathrm{NH}_3$ with excess of $\mathrm{AgNO}_3$ solution, then the number of electrons present in the $t_{2 g}$ orbital of the complex is $\_\_\_\_$ .

Professor PC Thomas Classes · Answer

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