sblock Elements 1 Question 36
54. Hydrogen peroxide acts both as an oxidising and as a reducing agent in alkaline solution towards certain first row transition metal ions. Illustrate both these properties of $\mathrm{H}{2} \mathrm{O}{2}$ using chemical equations.
$(1998,4 \mathrm{M})$
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Solution:
- $\mathrm{KMnO}{4}+\mathrm{H}{2} \mathrm{O}{2} \longrightarrow \mathrm{MnO}{2}+\mathrm{KOH}+\mathrm{O}_{2}$
$\mathrm{OA} \quad \mathrm{RA}$
$\underset{\text { RA }}{\mathrm{FeSO}{4}}+\underset{\text { OA }}{\mathrm{H}{2} \mathrm{O}{2}} \longrightarrow \mathrm{Fe}^{3+}+\mathrm{H}{2} \mathrm{O}$
