JEE Main 2022Chemistryd and f Block ElementsMediumNumerical

JEE Main 2022 — d and f Block Elements Question with Solution

JEE Main 2022 (26 Jul Shift 2)

Question

The spin-only magnetic moment value of the compound with strongest oxidizing ability among MnF4,MnF3 and MnF2 is_____ B.M (nearest integer)

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Show full solutionCorrect answer: 5
Correct answer
5

Step-by-step explanation

The change from Mn3+ to Mn2+ results in the half-filled (d5 ) configuration which has extra stability.So, MnF3 has most oxidising tendency.

Hence, MnF3 has the strongest oxidizing ability as it undergoes reduction readily.

Spin only magnetic moment is calculated using the following formula

μ=nn+2B.M

μ=44+2=24=4.89=5 B.M

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About this question

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.