Pyrolusite in MnO_(2) is used to prepare KMnO_(4). steps are MnO_(2) – InterviewSolution

1.	Pyrolusite in MnO_(2) is used to prepare KMnO_(4). steps are MnO_(2) overset(I) MnO_(4)^(2-) overset(II) to MnO_(4)^(-). The I and II are,
Answer» I=Fused with KOH/airII=electrolytic OXIDATION I=Fused with KOH/air II=Electrolytic REDUCTION I=Fused with conc. `HNO_(3)`/air II=electrolytic oxidation I=Fused with conc. `HNO_(3)`/AIRE II=electrolytic reduction ANSWER :A

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