Chemistry - Complete s-block Question with Solution | TestHub

${\mathrm{H}}_2{\mathrm{O}}_2$adopts a non-planar structure. In the crystal , dihedral angle$(111.5°)$is reduced to$90.2°$, because of H-bonding.

A.${\mathrm{H}}_2\mathrm{O}$is more polar than${\mathrm{H}}_2\mathrm{S}$, because$\mathrm{O}-\mathrm{H}$bond is more polar than$\mathrm{S}-\mathrm{H}$bond.
C.${\mathrm{D}}_2\mathrm{O}$is produced by repeated electrolysis of ordinary water.
D. (i)${\mathrm{H}}_2{\mathrm{O}}_2+2{\mathrm{H}}^{+}+2{\mathrm{e}}^{-}\to 2{\mathrm{H}}_2\mathrm{O}$(Oxidising character)
(ii)${\mathrm{H}}_2{\mathrm{O}}_2\to {\mathrm{O}}_2+2{\mathrm{H}}^{+}+2{\mathrm{e}}^{-}$(Reducing character).