Question

Concentration of $H_2{O}_2$ by vacuum distillation gives hydrogen peroxide which is:

• A. about $99\%$ pure
• B. about $90\%$ pure
• C. $30\%$ pure
• D. about $50\%$ pure

Answer 1

The correct option is B about $90\%$ pure

Vacuum distillation avoids decomposition of peroxide and gives crystalline $H_2{O}_2$ with negligible amount of impurities.