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Question: Answered & Verified by Expert
In lab $\mathrm{H}_2 \mathrm{O}_2$ is prepared by
ChemistryHydrogenJEE Main
Options:
  • A Cold $\mathrm{H}_2 \mathrm{SO}_4+\mathrm{BaO}_2$
  • B $\mathrm{HCl}+\mathrm{BaO}_2$
  • C Conc. $\mathrm{H}_2 \mathrm{SO}_4+\mathrm{Na}_2 \mathrm{O}_2$
  • D Conc. $\mathrm{H}_2 \mathrm{SO}_4+\mathrm{Na}_2 \mathrm{O}_2$
Solution:
2282 Upvotes Verified Answer
The correct answer is: Cold $\mathrm{H}_2 \mathrm{SO}_4+\mathrm{BaO}_2$
$\mathrm{H}_2 \mathrm{SO}_4+\mathrm{BaO}_2 \rightarrow \mathrm{BaSO}_4+\mathrm{H}_2 \mathrm{O}_2$

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