A solution containing (10 g ) of an electrolyte (AB _ 2 ) in (100...

A solution containing (10 $\mathrm{ g}$) of an electrolyte (\mathrm{AB}}_{2}) in (100 \mathrm{ g}) of water boils at (100.52^{{}^{\circ}} $\mathrm{C}$). The degree of ionization of the electrolyte ((\alpha)) is _______ (\times10^{-1}). (nearest integer) [Given : Molar mass of (\mathrm{AB}}_{2}=200\mathrm{ g} \mathrm{ mol}^{-1}, \mathrm{ K}_{\mathrm{b}}$) (molal boiling point elevation const. of water) (=0.52$\mathrm{ K} \mathrm{ kg} \mathrm{ mol}^{-1}$), boiling point of water (=100^{{}^{\circ}}$\mathrm{C}$;$\mathrm{AB}}_{2}) ionises as (\left.\mathrm{AB}}_{2} \rightarrow \mathrm{A}^{2+}+2 \mathrm{ B}^{-}\right])