Q. In laboratory, $H_{2}O_{2}$ is prepared by
A) Cold $H_{2}{SO}_{4} + {BaO}_{2}$
B) $HCl + {BaO}_{2}$
C) $conc\ H_{2}{SO}_{4} + {Na}_{2}O_{2}$
D) $H_{2} + O_{2}$
Explanation
(a)
$H_{2}{SO}_{4} + {BaO}_{2} \rightarrow {BaSO}_{4} + H_{2}O_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.