The solubility of metal halides depends on their nature , lattice enthalpy and hydration enthalpy of the individual ions . Amongst fluorides of alkali metals , the lowest solubility of LiF in water is due

The solubility of metal halides depends on their nature , lattice enth

1.	The solubility of metal halides depends on their nature , lattice enthalpy and hydration enthalpy of the individual ions . Amongst fluorides of alkali metals , the lowest solubility of LiF in water is due
Answer» ionic nature of lithium FLUROIDE HIGH lattice enthalpy high hydration enthalpy for lithium ion low IONISATION enthalpy of lithium atom Solution :Due to small size of `Li^(+)` and `F^(-)` IONS , lattice enthalpy is much higher than hydration enthalpy and hence LiF is least soluble among alkali metal fluorides .