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Question
Write a balanced chemical equation for the following.
A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Solution
- Electrolytic oxidation:
At anode:
\[\ce{2HSO4^{-}->[Electrolysis]\underset{\text{Peroxydisulphuric acid}}{H2S2O8} + 2e^-}\] - Hydrolysis:
\[\ce{\underset{\text{Peroxydisulphuric acid}}{HO - SO2 - O - O} - SO2 - OH + 2H2O->2H2SO4 + \underset{\text{Hydrogen peroxide}}{H2O2}}\]
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