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1988

JEE Main 1988 Chemistry question on Redox and Electrochemistry

The equivalent weight of MnSO4\text{MnSO}_4 is half of its molecular weight, when it converts to
  1. A.
    Mn2O3\text{Mn}_2\text{O}_3
  2. B.
    MnO2\text{MnO}_2
  3. C.
    MnO4−\text{MnO}_4^-
  4. D.
    MnO42−\text{MnO}_4^{2-}
Show answer

Correct option: D

[1988]

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