$H_2O_2$ is a hydride of

The structure of $H_2O_2$ is

Rohan heard that instructions were given to the laboratory attendant to store a particular chemical,i.e.,keep it in the dark room,add some urea in it,and keep it away from dust. This chemical acts as an oxidising as well as a reducing agent in both acidic and alkaline media. This chemical is important for use in the pollution control treatment of domestic and industrial effluents.
$(i)$ Write the name of this compound.
$(ii)$ Explain why such precautions are taken for storing this chemical.

Perhydrol is an aqueous solution of

What is the volume strength of a $3.0 \ N$ $H_2O_2$ solution in liters?

Which one of the following reactions represents the oxidising property of $H_2O_2$?