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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$E _{ Zn ^{2}+\mid Zn }^{ o }=-0.76 V$
Identify the incorrect statement from the options below for the above cell 