Among ( VO ₂⁺, MnO ₄⁻ )and ( Cr ₂ O ₇²⁻ ), the spin-only magnetic moment value of the species with least oxidising ability is ______ BM (Nearest integer). (Given atomic member ( V =23, Mn =25, Cr =24 ))

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For 3d transition series; Oxidising power : V ⁺⁵ < Cr ⁺⁶ < Mn ⁺⁷ V ⁺⁵:[ Ar ] 4 ~s ^0 3 ~d ^0 Number of unpaired electron =0 =0

Among ( VO ₂⁺, MnO ₄⁻ )and ( Cr ₂ O ₇²⁻ ), the spin-only magnetic moment value of the species with least oxidising ability is ______ BM (Nearest integer). (Given atomic member ( V =23, Mn =25, Cr =24 ))

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