Question

The strength of $30$ vol $.H_2{O}_2$ solution is:

• A. $6.07g{L}^{-1}$
• B. $30.35g{L}^{-1}$
• C. $91.07g{L}^{-1}$
• D. $3.03g{L}^{-1}$

Answer 1

Answer: (A)

$6.07g{L}^{-1}$

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

$68$gm of $H_2{O}_2$ gives $22.4$litres of $O_2$

$\therefore$ $30L$ of $O_2$ is produced by $\frac{68\times 30}{22.4}g$ i.e. $91.07g$ $H_2{O}_2$

$\therefore$ Strength of $30V$ $H_2{O}_2$ solution is $91.07g{L}^{-1}$.