Chemistry - s Block Elements Question with Solution | TestHub

The lattice energy of the hydroxides of alkaline earth metal decreases more rapidly than their hydration energy leading to more negative value of${\mathrm{\Delta H}}_{\text{sol}}$down the group. More negative is${\mathrm{\Delta H}}_{\text{sol}}$, more is the solubility of compounds. Hence the solubility of hydroxides of alkaline earth metal increases with their atomic number.