Question

Hydrogen peroxide is obtained by the electrolysis of _________.

• A. water
• B. sulphuric acid
• C. hydrochloric acid
• D. fused sodium peroxide

Answer 1

Answer: (B)

$H_2{O}_2$ is obtained by the electrolysis of a cold $50\%$ solution of $H_{2}S{O}_4$.
$2H_{2}S{O}_4\to 2H^{+}+2HS{O}_4^{-}$