JEE Main 2021ChemistryStructure of AtomEasyMCQ

JEE Main 2021 — Structure of Atom Question with Solution

JEE Main 2021 (25 Jul Shift 2)

Question

The spin only magnetic moments (in BM) for free Ti3+,V2+ and Sc3+ ions respectively are

(At.No. Sc : 21,Ti:22, V:23 )

Choose an option

Show full solutionCorrect option: B
Correct answer
B1.73,3.87,0

Step-by-step explanation

μ=n(n+2)BM

Ti+3=[Ar]3 d1  n=1  μ=1.73BM

V+2=[Ar]3 d3  n=3  μ=3.87BM

Sc+3=[Ar]3 d04 s0  n=0  μ=0

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About this question

This is a previous-year question from JEE Main 2021, covering the Structure of Atom chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.