Q. $H_{2}O_{2}$ is manufactured these days
A) By burning hydrogen in excess of oxygen
B) By the action of $H_{2}O_{2}\ on\ {BaO}_{2}$
C) By the action of $H_{2}{SO}_{4}\ on\ {Na}_{2}O_{2}$
D) By electrolysis of $50\%\ H_{2}{SO}_{4}$
Explanation
(d)
Electrolysis of 50% sulphuric acid gives per disulphuric acid $(H_{2}S_{2}O_{8})$ which on distillation yields 30% solution of hydrogen peroxide
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.