The volume strength (in $L$) of $3$ $N$ $H_2O_2$ is approximately

$H_2O_2$ is a

Complete the following chemical reactions.
$i$. $PbS_{(s)} + H_2O_{2_{(aq)}} \rightarrow$
$ii$. $MnO_{4_{(aq)}}^{-} + H_2O_{2_{(aq)}} \rightarrow$
$iii$. $CaO_{(s)} + H_2O_{(g)} \rightarrow$
$iv$. $AlCl_{3_{(s)}} + H_2O_{(l)} \rightarrow$
$v$. $Ca_3N_{2_{(s)}} + H_2O_{(l)} \rightarrow$
Classify the above into $a$. hydrolysis,$b$. redox,and $c$. hydration reactions.

$KO_2$ reacts with water to form $A$,$B$ and $C$. $B$ forms $C$ when it reacts with iodine in basic medium. What are $B$ and $C$ respectively?

$H_2O_2$ reduces $K_4[Fe(CN)_6]$ in which of the following conditions?

$Hydrogen$ $peroxide$ is reduced by: