$H_2O_2$ cannot oxidise

Which of the following can be used to prevent the decomposition of $H_{2}O_{2}$?

Consider the following reaction:
$2 HSO_{4}^{-}(aq)$ $\xrightarrow[\text{(2) Hydrolysis}]{\text{(1) Electrolysis}} H_{2}S_{2}O_{8}(aq)$ $\xrightarrow{\text{Hydrolysis}} 2 HSO_{4}^{-}(aq) + 2 H^{+}(aq) + A(aq)$
The dihedral angle in product $A$ in its solid phase at $110 \ K$ is ....$^{\circ}$

The orange coloured compound formed when $H_2O_2$ is added to $TiO_2$ solution acidified with conc $H_2SO_4$ is

The volume strength of $1.5 \ N \ H_2O_2$ solution is

Which of the following solutions produces $H_2 O_2$ on electrolysis?