The equivalent weight of `MnSO_(4)` is half its molecular weight when it is converted to

The equivalent weight of `MnSO_(4)` is half its molecular weight when it is converted to
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The equivalent weight of `MnSO_(4)` is half its molecular weight when it is converted to A. `Mn_(2)O_(3)` B. ` ... . `MnO_(4)^(-)` D. `MnO_(4)^(-2)`
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