1.

Which of the following sulphate is insoluble in water ?

Answer»

`CuSO_(4)`
`CdSO_(4)`
`PbSO_(4)`
`Bi(SO_(4))_(3)`

SOLUTION :As `Bi(SO_(4))_(3)` is a COVALENT COMPOUND with high lattice ENERGY and hence it is insoluble in water.


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