32. Lithium resemble magnesium in some of its properties. Mention two such properties and give reasons for this resemblance.

${{\mathrm{O}}_{2}}^{2-}$ represents a peroxide ion
${{\mathrm{O}}_{2}}^{-}$ represents a superoxide ion
(i) Peroxide ion react with water to forms ${\mathrm{H}}_{2}{\mathrm{O}}_{2}$
${{\mathrm{O}}_{2}}^{2-}+2{\mathrm{H}}_{2}\mathrm{O}\to 2{\mathrm{OH}}^{-}+\underset{\mathrm{Hydrogen}\phantom{\rule{0ex}{0ex}}\mathrm{peroxide}}{{\mathrm{H}}_{2}{\mathrm{O}}_{2}}$
(ii) Superoxide ion react with water to form ${\mathrm{H}}_{2}{\mathrm{O}}_{2}$ and ${\mathrm{O}}_{2}$
$2{{\mathrm{O}}_{2}}^{-}+2{\mathrm{H}}_{2}\mathrm{O}\to 2{\mathrm{OH}}^{-}+\underset{\mathrm{Hydrogen}\phantom{\rule{0ex}{0ex}}\mathrm{peroxide}}{{\mathrm{H}}_{2}{\mathrm{O}}_{2}}+{\mathrm{O}}_{2}$