${\text{KMnO}}_{\text{4}}$ in basic medium is reduced to ______.

 

The number of moles of ${\text{KMnO}}_{\text{4}}$ reduced by one mole of $\mathrm{KI}$ in an alkaline medium is _____.

When ${\text{KMnO}}_{\text{4}}$ is reduced with oxalic acid in an acidic solution, the oxidation number of $\mathrm{Mn}$ changes from _____.

The reaction of aqueous ${\text{KMnO}}_{\text{4}}$ with ${\mathrm{H}}_{\text{2}}{\text{O}}_{\text{2}}$ in acidic conditions gives ____.

Name the gas that can readily decolourise acidified ${\text{KMnO}}_{\text{4}}$ solution.

The colour and magnetic nature of manganate ion ${({\mathrm{MnO}}_{\mathrm{4}}}^{\mathrm{2-}}\mathrm{)}$ are ______, respectively.

The purple colour of the permanganate ion ${{\text{(MnO}}_{\text{4}}}^{\text{-}}\text{)}$ arises due to the _____.

Potassium permanganate is used _____.

Which of the following is Baeyer's reagent?