Question

Which of the following has maximum solubility?

Options

• BeF₂

• MgF₂

• CaF₂

• SrF₂

Answer 1

BeF₂ 

Explanation:

The solubility of fluorides of alkaline earth metals decreases down the group due to increase in hydration enthalpy.

Thus, the order of solubility of the given compounds is

\[\ce{BeF2 > MgF2 > SrF2}\]

Hence, BeF₂ has maximum solubility.