$H_2O_2$ restores the color of old lead paintings,blackened by the action of $H_2S$ gas by:

Assertion $:$ Amount of $H_2O_2$ in a sample can be determined by treating $H_2O_2$ solution with $KI$ and followed by titration of liberated $I_2$ with sodium thiosulphate.
Reason $:$ In this titration,an intense blue colour appears which disappears at the end point.

The last drop of water can be removed from $H_2O_2$ by

$H_2O_2$ is always stored in black bottles because

Which of the following statements regarding $H_2O_2$ is correct?

Which of the following compounds can produce $H_2O_2$ on electrolysis followed by hydrolysis?