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 ....$^{\circ}$

What is the order of $K_a$ for $H_2O_2$?

Electrolysis of $X$ gives $Y$ at anode. Vacuum distillation of $Y$ gives $H_2O_2$. The number of peroxy $(O-O)$ bonds present in $X$ and $Y$ respectively are :

Which one of the following does $NOT$ readily give oxygen upon heating?

Which one of the following is a true peroxide?

Among the statements $(a) - (d)$,the correct ones are:
$(a)$ Decomposition of hydrogen peroxide gives dioxygen.
$(b)$ Like hydrogen peroxide,compounds such as $KClO_{3}$,$Pb(NO_{3})_{2}$,and $NaNO_{3}$ liberate dioxygen when heated.
$(c)$ $2$-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.
$(d)$ Hydrogen peroxide is used for the manufacture of sodium perborate.