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Spin-only magnetic moment of the basic or amphoteric oxide of V or Cr

This type of question, asked 3 times: 26 Jun 2022, 4 Apr 2024, 6 Apr 2024. All 3 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    26 Jun 2022

    56
    The spin-only magnetic moment value of the most basic oxide of vanadium among V2O3, V2O4V_{2}O_{3},{\text{ }V}_{2}O_{4} and V2O5V_{2}O_{5} is ____ B.M. (Nearest Integer)

  2. Question 2

    4 Apr 2024

    148
    A first-row transition metal with highest enthalpy of atomisation, upon reaction with oxygen at high temperature forms oxides of formula M2OnM_{2}O_{n} (where n=3,4,5)n = 3,4,5). The 'spin-only' magnetic moment value of the amphoteric oxide from the above oxides is ___ BMBM (near integer) (Given atomic number: Sc : 21,Ti:22, V:2321,Ti:22,\text{ }V:23, Cr:24,Mn:25,Fe:26,Co:27,Ni:28,Cu:29Cr:24,Mn:25,Fe:26,Co:27,Ni:28,Cu:29, Zn:30)Zn:30)

  3. Question 3

    6 Apr 2024

    59
    Among CrO,Cr2O3CrO,Cr_{2}O_{3} and CrO3CrO_{3}, the sum of spin-only magnetic moment values of basic and amphoteric oxides is ____ 10−2BM10^{- 2}BM (nearest integer). (Given atomic number of CrCr is 24)