Question

20 volume ${\text{H}}_{\text{2}}{\text{O}}_{\text{2}}$ solution has a strength of :

• A. 30%
• B. 6%
• C. 3%
• D. 10%

Answer 1

The correct option is B 6%

$100\%$ strength corresponds to $333.33$ $V$

$\%$ strength for $20$ $V=\frac{20}{333.33}\times 100=6\%$