AIPMT PRELIMS2004Chemistry-Equilibrium
AIPMT PRELIMS 2004 Chemistry Solubility Product MCQ Question
Type: MCQ-numerical-Medium-Class 11
The solubility product of a sparingly soluble salt AX₂ is 3.2 ×10⁻¹¹. Its solubility (in moles/litre) is:-
A
1×10⁻⁴
B
2 × 10⁻⁴
C
4 × 10⁻⁴
D
5.6 × 10⁻⁶
Correct Answer
Option B
Detailed Explanation
For a salt AX₂, the solubility product Ksp = [A⁺][X⁻]² = (s)(2s)² = 4s³. Solving 4s³ = 3.2 × 10⁻¹¹ gives s = 2 × 10⁻⁴ mol/L.
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