JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumMulti-step

JEE Main 4 April 2024, Shift 1, Chemistry Q86

Question 86 of 90 in this shift, Chemistry question 26 of 30, Section B.

Consider the following reaction

\mathrm{MnO_2 + KOH + O_2 \rightarrow A + H_2O}

. Product 'A' in neutral or acidic medium disproportionate to give products 'B' and 'C' along with water. The sum of spin-only magnetic moment values of B and C is ________ BM. (nearest integer) (Given atomic number of Mn is 25)

Official answer

NTA final key.

Chapter: The d- and f-Block Elements
Topic: d-Block Elements
Idea tested: Permanganate Reactions

Same idea in other shifts

Asked 5× in all

27 Jul 2022, Shift 1 · Q71Given below are two statements. Statement I: Iron (III) catalyst, acidified $\mathrm{K_2Cr_2O_7}$ and neutral $\mathrm{KMnO_4}$ have the…HardTwo statements
3 Aug 2021, Shift 1 · Q39The correct statement for permanganate ion isMediumSingle correct
27 Aug 2021, Shift 2 · Q37Potassium permanganate on heating at 513 K gives a product which is :MediumSingle correct
17 Mar 2021, Shift 1 · Q39Given below are two statements : Statement I : Potassium permanganate on heating at 573 K forms potassium manganate. Statement II : Both…MediumTwo statements

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.