Preparation of potassium permanganate from $\mathrm{MnO}_2$ involves two step process in which the 1st step…

Preparation of potassium permanganate from $\mathrm{MnO}_2$ involves two step process in which the 1st step is a reaction with KOH and $\mathrm{KNO}_3$ to produce
  1. $\mathrm{K}_3 \mathrm{MnO}_4$
  2. $\mathrm{K}_4\left[\mathrm{Mn}(\mathrm{OH})_6\right]$
  3. $\mathrm{KMnO}_4$
  4. $\mathrm{K}_2 \mathrm{MnO}_4$

Solution

Preparation of $\mathrm{KMnO}{ }_4$
$\mathrm{MnO}_2 \xrightarrow[\mathrm{KNO}_3]{\mathrm{KOH}} \mathrm{K}_2 \mathrm{MnO}_4 \xrightarrow[\substack{\text { Oxidation in } \\ \text { Alkaline solution }}]{\text { Elecrolta }} \mathrm{KMnO}_4$

Asked in: JEE Main 2025 (24 Jan Shift 1)

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