In the electrolytic process for the industrial preparation of , an aqueous solution of is subjected — Hydrogen Chemistry Question

💡 Solution & Explanation

During the electrolysis of $50\% \text{ } H_2SO_4$, $HSO_4^-$ ions are oxidized at the anode to form peroxodisulphuric acid ($H_2S_2O_8$), while $H^+$ ions are reduced at the cathode to liberate $H_2$ gas. The $H_2S_2O_8$ is then carefully hydrolyzed in a separate step to produce $H_2O_2$ and regenerate $H_2SO_4$.