Fenton’s reagent is

In the gas phase,the $H-O-O-H$ dihedral angle in $H_{2}O_{2}$ is: (in $^{\circ}$)

$3.4 \ g$ of $H_2O_2$ is present in its $112 \ mL$ solution. The volume strength of this solution is ....... $V$.

Which one of the following is a true peroxide?

To an aqueous solution of $AgNO_3$,some $NaOH_{(aq)}$ is added until a brown precipitate is obtained. To this,$H_2O_2$ is added dropwise. The precipitate turns black with the evolution of $O_2$. The black precipitate is:

The volume (in $mL$) of $10$ volume $H_2O_2$ solution required to completely react with $200 \ mL$ of $0.4 \ M \ KMnO_4$ solution in acidic medium is