Which of the following is soluble in water?
MgF2
CaF2
BeF2
SrF2
As we learn
Solubility of fluorides (halides) of alkaline metals -
Except , these are insoluble in water
- wherein
Because of large lattice energy due to very small size of
Because of high lattice energy of Be2+ and due to very small size of F-, BeF2 is soluble in water.