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Pyrolusite is MnO(2) used to prepare KMn...

Pyrolusite is `MnO_(2)` used to prepare `KMnO_(4)`. Steps are, `MnO_(2)overset(I)(rarr)MnO_(4)^(2-)overset(II)(rarr)MnO_(4)^(-)` Steps I and II are respectively`:`

A

fuse with KOH`//` air and electrolytic oxidation

B

fuse with KOH`// KNO_(3)` and electrolytic oxidation

C

fuse with conc. `HNO_(3)//` air and electrolytic reduction

D

dissolve in `H_(2)O` and oxidation.

Text Solution

Verified by Experts

The correct Answer is:
A,B
Fuse with KOH in presence of air or oxidising agents like `KNO_(3), KClO_(3)` etc.
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Pyrolusite is MnO_(2) used to prepare KMnO_(4) step are: MnO_(2)undersetto(I)MnO_(4)^(2-)undersetto(II)MnO_(4)^(-) Step I and II are respectively:

overset (MnO_(2)) Product

overset (MnO_(2)) Product

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