JEE Main 2024 Chemistry question
The difference in the 'spin-only' magnetic moment values of KMnO₄ and the manganese product formed during titration of KMnO₄ against oxalic acid in acidic medium is BM. (nearest integer)
Answer: 6
Solution
KMnO₄ (Mn⁷⁺, d⁰) has μ = 0; the product Mn²⁺ (d⁵) has μ = √35 = 5.92 ≈ 6 BM.