• # question_answer 28) Why $LiF$ is almost insoluble in water whereas $LiCl$soluble not only in water but also in acetone?

Lattice energy of $LiF$ is very large as both $L{{i}^{+}}$and ${{F}^{-}}$ions are small in size. $LiF$is an ionic compound and the crystal is very hard to break apart due to high lattice energy. Hence, $LiF$is almost insoluble in water. $LiCl$is partially covalent in nature due to polarisation of chloride ion by $L{{i}^{+}}$ion. Thus, it is soluble in water as well as in non-polar solvents.