Question

What should be the volume strength of $H_2{O}_2$, if $H_2{O}_2$ reacts with the same volume of $\frac{M}{300}{K}_{2}C{r}_2{O}_7$ solution?

• A. $5.6V$
• B. $0.56V$
• C. $11.2V$
• D. $1.12V$

Answer 1

The correct option is B $0.56V$

Milliequivalents of $H_2{O}_2=$ Milliequivalents of $K_{2}C{r}_2{O}_7$

$1$ mEq. per $10$ mL $=\frac{1\times {10}^{-3}\times {10}^3}{10}$ eq. per litre

$=0.1N$

Volume strength of $H_2{O}_2=0.1\times 5.6$

$=0.56V$