Consider the following reaction: x MnO_4^-+y C_2 O_4^2-+z H^+ → x Mn^2++2 y CO_2+z/2 H_2 O The values of x, y and z in the reaction are, respectively:

Consider the following reaction : $$\begin{aligned} & x \mathrm{MnO}_4^{-}+y \mathrm{C}_2 \mathrm{O}_4^{2-}+z \mathrm{H}^{+} \rightarrow \\ & x \mathrm{Mn}^{2+}+2 y \mathrm{CO}_2+\frac{z}{2} \mathrm{H}_2 \mathrm{O} \end{aligned} $$ The values of $\displaystyle x, y$ and $\displaystyle z$ in the reaction are, respectively :