The solubility products of MA, MB, MC and MD are 1.8 x 10^-10, 4 x 10^-3, 4 x 10^-5 and 6 x 10^-5, respectively. If a 0.01 M solution of MX is added dropwise to a mixture containing A, B, C and D ions then the one to be precipitated first will be
Correct answer: A. MA Ksp = 1.8 × 10⁻¹⁰
- A. MA Ksp = 1.8 × 10⁻¹⁰
- B. MB - Ksp = 4 × 10⁻³
- C. MC - Ksp = 4 × 10⁻⁵
- D. MD - Ksp = 6 × 10⁻⁵
Explanation
Smallest Ksp → least soluble → precipitates first.Here, MA has the smallest Ksp (1.8×10−10), so MA comes out first when MX is added
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Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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