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  • Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?Option: 1 <img alt="\mathrm{Ca

Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?

Option: 1

\mathrm{CaSO_4}


Option: 2

\mathrm{BeSO_4}


Option: 3

\mathrm{BaSO_4}


Option: 4

\mathrm{SrSO_4}


Answers (1)

best_answer

As we move down the group, size of metal increases. Be has lower size. Smaller sized atom has more hydration energy. \mathrm{Be} is placed upper most in the group 2 has smaller
size and not comparable with the size of sulphates. Hence, \mathrm{BeSO_4} is the right response.

Posted by

Rakesh

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