Addition of $\mathrm{H}_{2} \mathrm{SO}_{4}$ to $\mathrm{BaO}_{2}$ produces:

(D) $\mathrm{BaSO}_{4}$ and $\mathrm{H}_{2} \mathrm{O}_{2}$

(A) $\mathrm{BaO}, \mathrm{SO}_{2}$ and $\mathrm{H}_{2} \mathrm{O}$

(B) $\mathrm{BaHSO}_{4}$ and $\mathrm{O}_{2}$

(C) $\mathrm{BaSO}_{4}, \mathrm{H}_{2}$ and $\mathrm{O}_{2}$

JEE Main · 2022 · 27 Jun 2022 · Shift 1 · s-Block Elements

Addition of

H_{2} SO_{4}

BaO_{2}

produces:

Answer: (D)

Barium peroxide reacts with dilute sulfuric acid to produce barium sulfate and hydrogen peroxide:

BaO_{2} + H_{2} SO_{4} \to BaSO_{4} + H_{2} O_{2}

This is a standard laboratory method for preparing hydrogen peroxide.

JEE Main · 2022 · 27 Jun 2022 · Shift 1 · Single correct option