D and F Block Elements

JEE Main 2022 · 26 Jul, Morning shift · Q774

ChemistryEasy158×since 2002Q774

The dark purple colour of

\mathrm{KMnO}_{4}

disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is :

JEE Main 2022 · 26 Jul, Morning shift · Q774

ChemistryEasy158×since 2002Q774

The dark purple colour of

\mathrm{KMnO}_{4}

disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is :

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