Answer:
Explanation has been given below.
Explanation:
Let's consider solubility equilibrium of an ionic insoluble compound e.g.
Equilibrium constant of this solubility equilibrium is represented in terms of solubility product () which is expressed as-
Now, if we add an ionic salt e.g. with a common ion then concentration of increases.
But, at a constant temperature, is constant.
Therefore, to keep constant, excess amount of will combine with free ion in solution and produce .
Hence, as a whole, solubility of decreases.