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Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy?

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Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy?

(a) CaSO4

(b) BeSO4

(c) BaSO4

(d) SrSO4

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1 Answer

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Best answer

The correct open is : (b) BeSO4

Explanation:

The hydration enthalpy of BeSO4 is higher than its lattice energy. Within group 2, the hydration energy decreases down the group while lattice energy is almost the same.

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