Easy MCQ +4 / -1 PYQ · JEE Mains 2022

Addition of H2SO4 to BaO2 produces :

  1. A BaO, SO<sub>2</sub> and H<sub>2</sub>O
  2. B BaHSO<sub>4</sub> and O<sub>2</sub>
  3. C BaSO<sub>4</sub>, H<sub>2</sub> and O<sub>2</sub>
  4. D BaSO<sub>4</sub> and H<sub>2</sub>O<sub>2</sub> Correct answer

Solution

$$\mathrm{BaO}_{2} \cdot 8 \mathrm{H}_{2} \mathrm{O}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{BaSO}_{4}+\mathrm{H}_{2} \mathrm{O}_{2}+\mathrm{H}_{2} \mathrm{O}$$<br/><br/> This is a common method to prepare hydrogenperoxide

About this question

Subject: Chemistry · Chapter: s-Block Elements · Topic: Alkali Metals

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