Question

explain common ion effect by giving a suitable example ​

Answer 1

Step-by-step explanation:

The common ion effect is the phenomenon in which the addition of an ion common to two solutes causes precipitation or reduces ionization. ... An example of the common ion effect is when sodium chloride (NaCl) is added to a solution of HCl and water.

Answer 2

Answer:

The reduction of the degree of dissociation of a salt by the addition of a common-ion is called the common ion effect.

E.g.: In a saturated solution of silver chloride, we have the equilibrium:

AgCl

(aq)

⇌Ag

+

+Cl

−

When sodium chloride is added to the solution the concentration of Cl

−

ions will increases. The equilibrium shown above will be shifted to the left to form more of solid AgCl. Thus, the solubility of AgCl will decrease.

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