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Magnetic moment of complex with 5 unpaired d-electrons (high spin):
A3.87 BM
B0
C5.92 BM (= sqrt(5 × 7))
D1.73 BM
Answer & Solution
Correct answer: C. 5.92 BM (= sqrt(5 × 7))
μ = sqrt(n(n+2)) BM. For 5 unpaired: sqrt(35) = 5.92 BM. Common for Mn²⁺ (d⁵) and Fe³⁺ (d⁵) high-spin complexes.
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