JEE Main 2024 Chemistry question
Among VO₂⁺, MnO₄⁻ and Cr₂O₇²⁻, the spin-only magnetic moment value of the species with least oxidizing ability is ………………. BM (Nearest integer). (Given atomic number V = 23, Mn = 25, Cr = 24)
Answer: 0
Solution
VO₂⁺ (V⁵⁺) is the least oxidising; it is d⁰ with μ = 0 BM.