NEET Chemistry Crystal Field Theory MCQ Question
Calculate the spin-only magnetic moment (in Bohr Magneton, BM) expected for a tetrahedral complex with a d^7 electronic configuration.
73 BM
87 BM
90 BM
5.92 BM
Correct Answer
Detailed Explanation
For a d^7 configuration in a tetrahedral field, the number of unpaired electrons is 3. The spin-only magnetic moment is calculated using the formula μ = √(n(n+2)), where n is the number of unpaired electrons. Therefore, μ = √(3(3+2)) = √15 ≈ 4.90 BM.
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