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

Options

  1. AS r S O 4
  2. BC a S O 4
  3. CB e S O 4
  4. DB a S O 4

Correct answer

C. B e S O 4

Step-by-step solution

Δ H Hydration > Δ H Lattice Salt is soluble. BeSO 4 is soluble due to high hydration energy of small Be 2+ ion. K sp for BeSO 4 is very high.

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