CBSE Class 12-science Answered
Write the chemical equations for the preparation of KMnO4 from MnO2.
Asked by sanjeet.kumar | 12 Mar, 2019, 02:21: PM
Expert Answer
Preparation of potassium permanganate: Potassium permanganate is prepared by the fusion of MnO2 (pyrolusite) with potassium hydroxide and an oxidizing agent like KNO3 to form potassium manganate (green mass), which disproportionate in a neutral or acidic solution to form permanganate.
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and 
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