25mL of 0.5M $H_2{O}_2$ solution is added to 50 mL of 0.2M $KMn{O}_4$in acid solution. Which of the following statements is false?

mlli equivalent of ${\mathrm{H}}_2{\mathrm{O}}_2$ 

$$\begin{gathered} = 25 \mathrm{x} 0.5 \mathrm{x} 2 \\ = 25 \end{gathered}$$

milli equivalent of ${\mathrm{KMnO}}_4$

$$\begin{gathered} = 50 \mathrm{x} 0.2 \mathrm{x} 5 \\ = 50 \end{gathered}$$

$\therefore$milli equivalent of ${\mathrm{KMnO}}_4$ left $=25= 5 \mathrm{m} \mathrm{mol}$

$\therefore$milli equivalent of ${\mathrm{O}}_2$ evolved $=25=\frac{25}{1000}\times 8\mathrm{g}$

Hence, the correct option is a, c and d.