In the primary industrial preparation of Potassium Permanganate, native black Pyrolusite ore () is fused with an alkali () in the presence of an oxidizing agent (like or ). What is the exact chemical

Question

In the primary industrial preparation of Potassium Permanganate, native black Pyrolusite ore ($MnO_2$) is fused with an alkali ($KOH$) in the presence of an oxidizing agent (like $O_2$ or $KNO_3$). What is the exact chemical formula and characteristic colour of the intermediate species formed?

Prashant Kotian · Accepted Answer

Correct answer: B. The oxidative fusion reaction is . This produces Potassium Manganate (), which forms a highly characteristic dark green mass, indicating Mn has been oxidized from to .

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