MHT CET202124 Sep 2021Evening ShiftChemistryIonic EquilibriumActual
The solubility of sparingly soluble salt AB ₂ is 1.0 10⁻⁴ ~mol dm ⁻³ . What is its solubility product?
Options
- A2 10⁻¹²
- B4 10⁻⁸
- C4 10⁻¹²
- D2 10⁻⁸
Correct answer
C. 4 10⁻¹²
Step-by-step solution
AB _ 2( ~s ) A _ ( aq ) ²⁺+2 ~B _ ( aq ) ⁻ At equilibrium, - S 2 ~S aligned & K _ sp = [ A ²⁺ ] [ B ⁻ ]^2 & = S .(2 ~S )^2=4 ~S ^3 & =4 (1 10⁻⁴ )^3 & ~K _ sp =4 10⁻¹² aligned