When $2-$ethylanthraquinol dissolved in a mixture of benzene and cyclohexanol is oxidised,the product is

The correct statements about $H_2O_2$ are:
$A$. Used in the treatment of effluents.
$B$. Used as both oxidising and reducing agents.
$C$. The two hydroxyl groups lie in the same plane.
$D$. Miscible with water.
Choose the correct answer from the options given below:

Complete the following equations :
$(i) PbS_{(s)} + 4H_2O_{2_{(aq)}} \to$
$(ii) CO_{(g)} + 2H_{2_{(g)}} \xrightarrow{\text{cobalt catalyst}}$

The reaction $H_2S + H_2O_2 \to S + 2H_2O$ manifests:

$1 \ mL$ of $H_2O_2$ solution gives $10 \ mL$ of $O_2$ at $NTP$. It is ................ vol. $H_2O_2$.

Which of the following gives $H_2O_2$ upon oxidation?