JEE Main 2022 — D And F Block Elements Question with Solution
From: JEE Main 2022 (Online) 25th June Evening Shift
Question
The metal ion (in gaseous state) with lowest spin-only magnetic moment value is :
Choose an option
Show full solutionCorrect option: B
Correct answer
BNi2+
Step-by-step explanation
| Valence shell configuration | Unpaired electrons | |
|---|---|---|
| V2+ | 3d34s0 | n = 3 |
| Ni2+ | 3d84s0 | n = 2 |
| Cr2+ | 3d44s0 | n = 4 |
| Fe2+ | 3d64s0 | n = 4 |
Since Ni2+ has least number of unpaired electrons. Hence Ni2+ will have lowest spin only magnetic moment Value.
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This is a previous-year question from JEE Main 2022, covering the D And F Block Elements 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.