Solubility of an ionic compound in water is mainly dependent on
A) Lattice enthalpy `" "` B) Hydration enathalpy
Both these factors oppose each other and the resultant of these determines thhe solubility of an ionic compound in water. If lattice enthalpy has greater value, the compound has greater value, the compound is less soluble. In case hydration enthaply has greater value, the compound is highly soluble is water
`BeF_(2)` is soluble in water while fluorides of other alkalie earth metals are isoluble because of

Options

A. Covalent nature of `BeF_(2)`
B. Ionic nature of `BeF_(2)`
C. Greater hydration enthalpy of `Be^(2+)` ion
D. Greater lattice enthalpy of `Be^(2+)` ion

Answer

C

Explanation

`BeF_(2)` is soluble while other fluorides of IIA group elements are insoluble because `Be^(+2)` has more hydration energy due to it.s small size