Question

The catalyst used in the laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide.

• A. True
• B. False

Answer 1

The correct option is A True

The given reaction is:

$\underset{\mathrm{Hydrogen}\mathrm{peroxide}\mathrm{Water}\mathrm{Oxygen}}{2{\mathrm{H}}_2{\mathrm{O}}_2\underset{\mathrm{Catalyst}}{\overset{{\mathrm{MnO}}_2}{\to }}2{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2}$

• Oxygen is prepared in the laboratory by treating hydrogen peroxide with catalyst manganese dioxide.
• Hence, the given statement is false.
• Corrected statement: The catalyst used in the laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium dioxide.