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Question
Which of the following pair will have equal magnetic moment value in BM?
Options
Cr3+ and Mn2+
Mn2+ and Fe3+
V2+ and Sc3+
Ti2+ and V2+
MCQ
Solution
Mn2+ and Fe3+
Explanation:
If the ions have the same number of unpaired electrons, their magnetic moments will be equal.
Mn2+: [Ar]3d5
∴ 5 unpaired electrons
Fe3+: [Ar]3d5
∴ unpaired electrons
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Magnetic Properties of Solids
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