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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 26 July 2022, Shift 2, Chemistry Q68

Question 68 of 90 in this shift, Chemistry question 8 of 30, Section A.

The products obtained from a reaction of hydrogen peroxide and acidified potassium permanganate are
  1. (1)Mn4+\mathrm{Mn^{4+}}, H2O\mathrm{H_2O} only
  2. (2)Mn2+\mathrm{Mn^{2+}}, H2O\mathrm{H_2O} only
  3. (3)Mn4+\mathrm{Mn^{4+}}, H2O\mathrm{H_2O}, O2\mathrm{O_2} only
  4. (4)Mn2+\mathrm{Mn^{2+}}, H2O\mathrm{H_2O}, O2\mathrm{O_2} onlyOfficial answer

Official answer

Option 4

NTA final key.

Chapter
Hydrogen
Topic
Hydrogen and Hydrides
Idea tested
Reducing Action of H2O2

Same idea in other shifts

Asked 2× in all
  1. 4 Aug 2021, Shift 2 · Q34H2O2\mathrm{H_2O_2} reacts with MnO4−\mathrm{MnO_4^-} in basic medium to produceMediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.