Chemistry - Complete s-block Question with Solution | TestHub

The superoxide's of alkali metals are paramagnetic due to presence of two unpaired electron in ${\pi }^{\ast }$ orbitals.

The stability of peroxide and superoxide increases as the size of cation increases.

${\mathrm{Li}}_2{\mathrm{CO}}_3$ decomposes on heating to ${\mathrm{Li}}_2\mathrm{O}$ and ${\mathrm{CO}}_2$ whereas ${\mathrm{Na}}_2{\mathrm{CO}}_3$ does not decomposes up to red heating.

Both LiCl and ${\mathrm{MgCl}}_2$ are deliquescent and crystallize as hydrates from aqueous solution.