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Among Co3+, Ti2+, V2+ and Cr2+, the ion that is an oxidant (cannot liberate H2): its spin-only magnetic moment

The same question, asked 2 times: 25 Jul 2022, 5 Apr 2024. Every wording below, oldest first.

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  1. Question 1

    25 Jul 2022

    57
    Among Co3+,Ti2+,V2+Co^{3 +},Ti^{2 +},V^{2 +} and Cr2+Cr^{2 +} ions, one if used as a reagent cannot liberate H2H_{2} from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is ____ B.M. (Nearest integer)

  2. Question 2

    5 Apr 2024

    55
    The spin only magnetic moment value of the ion among Ti2+,V2+,Co3+Ti^{2 +},V^{2 +},Co^{3 +} and Cr2+Cr^{2 +}, that acts as strong oxidising agent in aqueous solution is ____ BM (nearest integer). (Given atomic numbers: Ti:22, V:23,Cr:24Ti:22,\text{ }V:23,Cr:24, Co: 27)