Which of the following sulphates is insoluble | vedclass

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(C) The solubility of metal sulphates in water generally decreases down the group for alkaline earth metals,but for heavy metals,the lattice energy an

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$PbSO_4$

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(C) The solubility of metal sulphates in water generally decreases down the group for alkaline earth metals,but for heavy metals,the lattice energy and hydration energy play a significant role. $PbSO_4$ (Lead$(II)$ sulphate) is known to be practically insoluble in water due to its very high lattice energy compared to its hydration energy. In contrast,$CuSO_4$,$CdSO_4$,and $Bi_2(SO_4)_3$ are generally soluble in water.

Which of the following sulphates is insoluble in water?

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