Which of the following group II sulphates has hydration enthalpy higher than the lattice enthalp...

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Which of the following group II sulphates has hydration enthalpy higher than the lattice enthalpy?
(a) \( \mathrm{SrSO}_{4} \)
(b) \( \mathrm{CaSO}_{4} \)
(c) \( \mathrm{BeSO}_{4} \)
(d) \( \mathrm{BaSO}_{4} \)
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