JEE Main 2021 — Hydrogen Question with Solution
From: JEE Main 2021 (Online) 27th August Evening Shift
Question
The oxide that gives H2O2 most readily on treatment with H2O is :
Choose an option
Show full solutionCorrect option: B
Correct answer
BNa2O2
Step-by-step explanation
(a) PbO2 + 2H2O Pb(OH)4
(b) Na2O2 + 2H2O 2NaOH + H2O2
this reaction is possible at room temperature
(c) SnO2 + 2H2O Sn(OH)4
(d) Acidified BaO2 . 8H2O gives H2O2 after evaporation.
(b) Na2O2 + 2H2O 2NaOH + H2O2
this reaction is possible at room temperature
(c) SnO2 + 2H2O Sn(OH)4
(d) Acidified BaO2 . 8H2O gives H2O2 after evaporation.
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This is a previous-year question from JEE Main 2021, covering the Hydrogen chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.