Which of the following statements is incorrect?

Which of the following is not a peroxo acid?

In which of the following reactions does $H_2O_2$ act as an oxidising agent (either in acidic,alkaline,or neutral medium)?
$(i)$ $2Fe^{2+} + H_2O_2 \rightarrow$
$(ii)$ $2MnO_4^{-} + 6H^{+} + 5H_2O_2 \rightarrow$
$(iii)$ $I_2 + H_2O_2 + 2OH^{-} \rightarrow$
$(iv)$ $Mn^{2+} + H_2O_2 \rightarrow$

The $\% \left(\frac{W}{V}\right)$ of $H_2O_2$ in $1.5 \ N$ solution is

Which of the following can reduce the decomposition of $H_2O_2$ on exposure to light?

The last drop of water can be removed from $H_2O_2$ by :-