Which of the following solution produces H ₂ O ₂ on electrolysis?

Step-by-step solution

H ₂ O ₂ is obtained by the electrolysis of a cold 50 % solution of H ₂ SO ₄ H ₂ SO ₄ H ⁺+ HSO ₄⁻ The electrolysis of HSO ₄⁻ ion gives H ₂ O ₂ . Peroxodisulphate obtained by electrolytic oxidation of acidified sulphate solutions at high current density, on hydrolysis yield hydrogen peroxide. aligned & 2 HSO ₄⁻ [-2 e⁻] Electrolysis Peroxodisulphate HO ₃ SOOSO ₃ H (a q) Hydrolysis 2 H ₂ O & 2 SO ₄²⁻(a q)+4 H ⁺(a q)+ H ₂ O ₂(a q) aligned