Solubility of sulphates of group 2 elements d | vedclass

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(A) The solubility of alkaline earth metal sulphates depends on the balance between lattice energy and hydration energy. As we move down the group,the

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decreasing hydration energy

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(A) The solubility of alkaline earth metal sulphates depends on the balance between lattice energy and hydration energy. As we move down the group,the size of the cation increases. The hydration energy decreases significantly as the size of the cation increases. Since the decrease in hydration energy is more pronounced than the decrease in lattice energy,the overall solubility decreases down the group.

Solubility of sulphates of group $2$ elements decreases down the group due to

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