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Give preparation of Potassium Permangana...

Give preparation of Potassium Permanganate `(KMnO_4)`.

Text Solution

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(i) Conversation of pyrolnsite ore to potassium magnate :
`underset("Pyrolusite ore")(2MnO_2) + 4KOH + O_2 overset("Heat")to underset(("Potassium Magnate"))(2K_2 MnO_4 + 2H_2O)`
(ii) Oxidation of Potassium Magnate to Potassium Permangnate :
`underset(("Potassium Magnate"))(2K_2 MnO_4 + 4HCl) to 2KMnO_4 + underset(("Potassium Permagnate"))(MnO_2 + H_2O + 4KCl)`
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