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Which of the of the following statements in not correct?

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a
The solubility of  PbS in water as computed from solubility product is not affected if the hydrolysis of Pb2+ and S2- are also considered
b
The solubility of a sparingly soluble salt in water decreases if some common ion is present in water
c
The solubility product of a salt is dependant on temperature
d
The solubility of Zn(OH)2 in water is dependant on the pH of the solution

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detailed solution

Correct option is A

The solubility of  PbS is increased if the hydrolysis of Pb2+ and S2-ions are also considered. The solubility of  Zn(OH)2 is pH dependent due to the reaction between OH- from  Zn(OH)2 and H+ ions (i.e. pH) present in the solution.

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