JEE Main 2026 · ChemistryMultiple choiceSingle correctMediumMulti-step

JEE Main 4 April 2026, Shift 1, Chemistry Q56

Question 56 of 75 in this shift, Chemistry question 6 of 25, Section A.

In order to oxidise a mixture of

1

mole each of

\mathrm{FeC_2O_4}

\mathrm{Fe_2(C_2O_4)_3}

\mathrm{FeSO_4}

and

\mathrm{Fe_2(SO_4)_3}

in acidic medium, the number of moles of

\mathrm{KMnO_4}

required is

(1) $3$
(2) $2$ Official answer
(3) $5$
(4) $7$

Official answer

Option 2

NTA final key.

Chapter: Redox Reactions
Topic: Redox Reactions
Idea tested: Law of Chemical Equivalence in Redox

Same topic in other shifts

All Redox Reactions questions

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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 42 of the 174 JEE Main shifts held from 2017 to 2026.