A compound \(\left(M \mathrm{O}_2\right)\) of group I element \((M)\) hydrolysed to form \(M^{+},…
A compound \(\left(M \mathrm{O}_2\right)\) of group I element \((M)\) hydrolysed to form \(M^{+}, \mathrm{OH}^{-}, X\) and \(Y\). When \(X\) reacts with \(\mathrm{I}_2\) in basic medium the products formed are \(\mathrm{I}^{-}\), water and \(Y\). Then \(X\) and \(Y\) are respectively
\(\mathrm{H}_2 \mathrm{O}_2, \mathrm{O}_2\)
\(\mathrm{H}_2 \mathrm{O}_2, \mathrm{O}_3\)
\(\mathrm{H}_2, \mathrm{O}_2\)
\(\mathrm{O}_2, \mathrm{H}_2\)
Solution
Given,
A compound \(\left(\mathrm{MO}_2\right)\) of group 1 element \((M)\) hydrolysed to give \(\mathrm{M}^{+}, \mathrm{OH}^{-}, X\) and \(Y\) when \((X)\) reacts with \(\mathrm{I}_2\) in basic medium, it gives \(\mathrm{I}^{-}\), water and \((Y)\). Thus, \((X)\) and \((Y)\) are \(\mathrm{H}_2 \mathrm{O}_2(X)\) and \(\mathrm{O}_2(Y)\) respectively.
The reaction involved are as follows :
\(\begin{aligned}
& 2 \mathrm{MO}_2+2 \mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{M}^{+}+2 \mathrm{OH}^{-}+\mathrm{H}_2 \mathrm{O}_2+\mathrm{O}_2 \\
& (X) \\
& \mathrm{I}_2+\mathrm{H}_2 \mathrm{O}_2+2 \mathrm{OH}^{-} \longrightarrow 2 \mathrm{I}^{-}+2 \mathrm{H}_2 \mathrm{O}+\mathrm{O}_2
\end{aligned}\)
Hence, option (a) is the correct answer.