On decreasing the pH from 7 to 2, the solubility of a sparingly soluble salt (MX) of a…
Chemistry · JEE Advanced · NTA Exams — Equilibrium
On decreasing the pH from 7 to 2, the solubility of a sparingly soluble salt (MX) of a weak acid (HX) increased from \(10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}\) to \(10^{-3} \mathrm{~mol} L^{-1}\) . The \(p K_{a}\) of HX is:
(2023)
(2023)
- 3
- 4
- 5
- 2
Answer
(B) 4
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