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21/12/2021 11:29 am
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BeF2 is soluble in water whereas fluorides of other alkaline earth metals are insoluble because of
(a) ionic nature of BeF2.
(b) covalent nature of BeF2.
(c) greater hydration energy of Be2+ ion as compared to its lattice energy.
(d) none of these.
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21/12/2021 11:31 am
Correct answer: (c) greater hydration energy of Be2+ ion as compared to its lattice energy.
Explanation:
Be2+ being small in size is heavily hydrated and heat of hydration exceeds the lattice energy. Hence BeF2 is soluble in water.