${\mathrm{AB}}_2$ is 10% dissociated in water to ${\mathrm{A}}^{2+}$ and ${\mathrm{B}}^{-}$ ,the boiling point of a 10.0 molal aqueous solution of ${\mathrm{AB}}_2$ is ${}^{\circ }\mathrm{C}$. (Round off to the Nearest Integer).
[Given: Molal elevation constant of water ${\mathrm{K}}_{\mathrm{b}}=0.5{\mathrm{Kkgmol}}^{-1}$ boiling point of pure water $\left.=100°\mathrm{C}\right]$