JEE Main 2025 · ChemistryNumerical answerNumerical valueMediumMulti-step

JEE Main 3 April 2025, Shift 2, Chemistry Q73

Question 73 of 75 in this shift, Chemistry question 23 of 25, Section B.

Among, Sc, Mn, Co and Cu, identify the element with highest enthalpy of atomisation. The spin only magnetic moment value of that element in its +2 oxidation state is __________ BM (in nearest integer).

Official answer

NTA final key.

Chapter: The d- and f-Block Elements
Topic: d-Block Elements
Idea tested: Enthalpy of Atomization

Same idea in other shifts

Asked 4× in all

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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.