Hydrogen peroxide is obtained by the electrolysis of

Question

Hydrogen peroxide is obtained by the electrolysis of (A) H2O (B) H2SO4 (C) HCl (D) Fused sodium peroxide

Tardigrade Admin · Accepted Answer

Preparation of Hydrogen peroxide includes laboratory method and industrial method.
In industrial method Hydrogen peroxide ia prepared from electrolytic process, in which

30%

ice cold sulphuric acid is electrolyzed at high current density, then, peroxydisulphate is obtained,which on hydrolysis gives hydrogen peroxide.
Following reaction take place on electrolysis of sulphuric acid.

2 H S O_{4}^{-} \to H_{2} S_{2} O_{8} + 2 e^{-} H_{2} S_{2} O_{8} + H_{2} O \to H_{2} O_{2} + H_{2} S O_{4}

Thus answer is option

2

Q. Hydrogen peroxide is obtained by the electrolysis of

$H_{2} O$

$H_{2} S O_{4}$

$H Cl$

Fused sodium peroxide

Q. Hydrogen peroxide is obtained by the electrolysis of

H2​O

H2​SO4​

HCl

Fused sodium peroxide

$H_{2} O$

$H_{2} S O_{4}$

$H Cl$