The volume strength of perhydrol is

Which of the following is commercially known as oxone?

Which of the following liberates $O_2$ upon hydrolysis?

Which is not a method to prepare $H_2O_2$?

Which one of the following does $NOT$ readily give oxygen upon heating?

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