MCQ
$K_2MnO_4$ can be converted into $KMnO_4$ by
- APassing $CO_2$ gas
- BPassing $Cl_2$
- CElectrolytic oxidation
- ✓All of these
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[Given : Molal depression constant of water = $1.85 \,K \,kg \,mol ^{-1}$ Freezing point of pure water $\left.=0^{\circ} C \right]$