Which of the following occurs with $\mathrm{KMnO}_4$ in neutral medium?

In the reaction of sulphur with concentrated sulphuric acid, the oxidised product is $X$ and reduced product is $Y, X$ and $Y$ are respectively.

Given below are two statements.

Statement I : In the decomposition of potassium chlorate Cl is reduced.

Statement II : Reaction of Na with $\mathrm{O}_2$ to form $\mathrm{Na}_2 \mathrm{O}$ is a redox reaction.

The correct answer is

In neutral medium potassium permanganate oxidises $I^{-}$to $X$.. Identify the $X$.