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Solubility of alkaline earth metal sulphates decreases down the group 2 becauseA. they become more ionicB. lattice energy of sulphates does not vary significantlyC. hydration energy decrease rapidly from `Be^(2+)` to `Ba^(2+)`D. lattice energy plays more predominant role than hydration energy. |
Answer» Correct Answer - C Due to very large size of sulphate ions, the magnitude of lattice energy of alkaline earth metal sulphates remains almost constant. Thus, their solubility is governed by only hydration energy decreases fromo `Be^(2+)` to `Ba^(2+)`. |
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