A compound $\left(M_2 \mathrm{O}_2\right)$ of group I element $(M)$ hydrolyses to form $M^{+},…
A compound $\left(M_2 \mathrm{O}_2\right)$ of group I element $(M)$ hydrolyses to form $M^{+}, \mathrm{OH}^{-}$and $X$. Another compound $\left(M^{\prime} \mathrm{O}_2\right)$ of group I element $\left(M^{\prime}\right)$ hydrolyses to form $\left(M^{\prime}\right)^{+}, \mathrm{OH}^{-}, X$ and $Y$. What are $X$ and $Y$ respectively ?