NEET Chemistry The s-Block Elements Questions Solved


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 to:

(a) Ionic nature of lithium fluoride               (b) High lattice enthalpy

(c) High hydration enthalpy of lithium ion    (d) Low ionisation enthalpy of lithium atom

(b) Due to strong packing of Li+ and F- ion, lattice energy of LiF is higher than its hydration energy.

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