Question

Strength of 2N $H_2{O}_2$ solution is approximately:

• A. 10 volumes
• B. 44.8 volumes
• C. 22.4 volumes
• D. 11.2 volumes

Answer 1

The correct option is D 11.2 volumes

volume strength is referred to the volume of oxygen gas liberated from 1 unit volume of $2H_2{O}_2$ solution.

According to the reaction

$2H_2{O}_2\to 2H_{2}O+O_2$

$1$ mol of $H_2{O}_2$ produces $0.5$ mol or $11.2L$ of $O_2$.

The strength of the compound $=11.2\times$molarity of the solution

We have, $2N$ $H_2{O}_2$ $=1M$ $H_2{O}_2$

$\therefore$ strength of $2N$ $H_2{O}_2=$11.2 volumes.