Which of the following contains the maximum number of unpaired electrons ?
A. `MnSO_4`
B. `CuSO_4`
C. `FeSO_4`
D. `ZnSO_4`

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1 Answers

Correct Answer - A
Mn in `MnSO_4` contains maximum number of unpaired electron. Mn in `MnSO_4` is present in +2 oxidation state as `Mn^(+2)` ions. It has five unpaired electron `(3d^5 4s^0)`

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