Question

Why is `LiF` almost insoluble in water whereas `LiCl` soluble not only in water but also in acetone?
A. high hydration enthalpy of `Li^(+)`
B. low hydration enthalpy of `Li^(+)`
C. more ionic character in LiCl
D. None of the above

Answer 1

Correct Answer - a
LIF is almost insoluble in water due to its high lattice energy but LICl is soluble in water due to high hydration energy of `Li^(+)` ions. LICl is also soluble in acetone due to its predominantly covalent nature (because covalent character increases with increase in the size of anion).