In the preparation of Potassium Permanganate, native Pyrolusite ore () is fused with and an oxidizin — d and f Block Elements Chemistry Question

💡 Solution & Explanation

The oxidative fusion reaction is $2MnO_2 + 4KOH + O_2 \to 2K_2MnO_4 + 2H_2O$. This produces Potassium Manganate ($K_2MnO_4$), which forms a highly characteristic dark green mass, with Mn oxidized from $+4$ to $+6$.