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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

The solubility of BaSO₄ in water is 0.00233 g per litre at 30°C. The solubility of BaSO₄ in 0.1 M (NH₄)₂SO₄ solution at the same temperature is:

Answer: (D)

Solution

Pure-water solubility=10⁻⁵ M → Ksp=10⁻¹⁰. In 0.1 M common-ion solution: [Ba²⁺]=Ksp/0.1=10⁻⁹ M.

Question ID VK-136222