Chemistry - Hydrogen and Its compound Question with Solution | TestHub

Peroxodisulphate, obtained by electrolytic oxidation of acidified sulphate solutions at high current density, on hydrolysis yields hydrogen peroxide.

$2{\mathrm{HSO}}_4^{-}\left(\mathrm{aq}\right)\stackrel{ \mathrm{Electrolysis}}{⟶}{\mathrm{HO}}_3{\mathrm{SOOSO}}_3\mathrm{H}\left(\mathrm{aq}\right)\stackrel{\mathrm{Hydrolysis}}{\to }2{\mathrm{HSO}}_4^{-}\left(\mathrm{aq}\right)+2{\mathrm{H}}^{+}\left(\mathrm{aq}\right)+{\mathrm{H}}_2{\mathrm{O}}_2\left(\mathrm{aq}\right)$

Hydrogen peroxide has a non-planar structure. The molecular dimensions in the gas phase and solid phase are shown

${\mathrm{H}}_2{\mathrm{O}}_2$ structure in gas phase, dihedral angle is $111.5°$.

${\mathrm{H}}_2{\mathrm{O}}_2$ structure in solid phase at $110 \mathrm{K}$, dihedral angle is $90.2°$.