LiF is the least soluble among the fluorides of alkali metals, because:
Correct answer: C. lattice energy of LiF is quite higher due to the smaller size of Li+ and F-
- A. smaller size Li+ impart significant covalent character in LiF
- B. the hydration energies of Li+ and F- are quite higher
- C. lattice energy of LiF is quite higher due to the smaller size of Li+ and F-
- D. LiF have strong polymeric network in solid
Explanation
The small size of both Li+ and F- ion leads to a very high value of lattice energy and thus the crystal of LiF is very difficult to break.
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