The solubilities of sulphates fo alkaline earth metals decreases from Be to Ba because

Options

A. Their lattice energies decrease in this order
B. their lattice energies increase in this order
C. lattice energies are about the same
D. hydration energies of `Be^(2+)` to `Ba^(2+)` cations decrease in this order

Answer

D

Explanation

Due to increase in the size from `Be^(2+)` to `Be^(2+)` hydration energy decreases so solubility decreases.