The equivalent weight of MnSO4 is half of its moleculer weight, when it is converted to:
A
Mn2O3
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B
MnO2
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C
MnO−4
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D
none of these
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Solution
The correct option is BMnO2 For equivalent weight of MnSO4 to be half of its molecular weight, change in oxidation state must be equal to +2. It is possible only when oxidation state of Mn in product is +4. Since oxidation state of Mn in MnSO4 is +2