Kelvi

Kelvi

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Kelvi

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The reaction of aqueous KMnO $_4$ with H $_2O_2$ in acidic conditions gives

medium

RedoxReactions

2014

chemistry

$Mn^{4+}$ and $O_2$

$Mn^{2+}$

Explanation

To solve this problem, we need to analyze the reaction between aqueous $\mathrm{KMnO}_4$ and $\mathrm{H}_2\mathrm{O}_2$ under acidic conditions. $\\$

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and

O_2

$Mn^{2+}$ and $O_3$

$Mn^{4+}$ and $MnO_2$

The balanced chemical equation for this reaction is:

\\ 2 \mathrm{KMnO}_4 + 3 \mathrm{H}_2\mathrm{SO}_4 + 5 \mathrm{H}_2\mathrm{O}_2 \rightarrow 2 \mathrm{MnSO}_4 + 5 \mathrm{O}_2 + 8 \mathrm{H}_2\mathrm{O} + \mathrm{K}_2\mathrm{SO}_4 \\

In this reaction:

\\

•

\mathrm{KMnO}_4

acts as an oxidizing agent and is reduced to

\mathrm{Mn}^{2+}. \\

•

\mathrm{H}_2\mathrm{O}_2

is oxidized to

\mathrm{O}_2. \\

Let's analyze the changes in oxidation states:

\\

• Manganese in

\mathrm{KMnO}_4

has an oxidation state of

+7. \\

• It is reduced to

\mathrm{Mn}^{2+}

with an oxidation state of

+2. \\

• Oxygen in

\mathrm{H}_2\mathrm{O}_2

has an oxidation state of

-1. \\

• It is oxidized to

\mathrm{O}_2

with an oxidation state of

0. \\

Thus, the products of the reaction are

\mathrm{Mn}^{2+}

and

\mathrm{O}_2. \\

Therefore, the correct option is Option 2:

\mathrm{Mn}^{2+}

and

\mathrm{O}_2.