QJEEM22Ch9797: JEE Main 2022 Chemistry - Class 11 JEEM22Ch9797 Solution: Which one of the following reactions indicates the reducing…

Question

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Which one of the following reactions indicates the reducing ability of hydrogen peroxide in basic medium?

Accepted Answer

2 \mathrm{Mn}\overset{+7}{\mathrm{O}_{4}^{-}}+3 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow

2 \mathrm{Mn}\overset{+4}{\mathrm{O}_{2}}+3 \mathrm{O}_{2}+2 \mathrm{H}_{2} \mathrm{O}+2 \mathrm{O} \overline{\mathrm{H}}

In basic medium

\mathrm{MnO}_{4}^{-}

is reduced to

\mathrm{MnO}_{2}

, whereas in acidic medium it is reduced to

\mathrm{Mn}^{+2}

.

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