JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2013

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

    A)  \[BeS{{O}_{4}}\]             

    B)  \[CaS{{O}_{4}}\]

    C)  \[BaS{{O}_{4}}\]             

    D)  \[SrS{{O}_{4}}\]

    Correct Answer: A

    Solution :

                    Hydration energy decreases down the group, whereas lattice energy remains almost constant. Therefore, hydration enthalpy is higher than the lattice enthalpy in case of\[BeS{{O}_{4}}\].


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