JEE Main 2022 · ChemistryNumerical answerNumerical valueHardMulti-step

JEE Main 25 July 2022, Shift 1, Chemistry Q87

Question 87 of 90 in this shift, Chemistry question 27 of 30, Section B.

Among

\mathrm{Co^{3+},\ Ti^{2+},\ V^{2+}}

and

\mathrm{Cr^{2+}}

ions, one if used as a reagent cannot liberate

\mathrm{H_2}

from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is ______ B.M. (Nearest integer)

Official answer

NTA final key (2022 Session 2).

Chapter: The d- and f-Block Elements
Topic: d-Block Elements
Idea tested: Standard Electrode Potential Trends

Same topic in other shifts

All d-Block Elements 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.