The solubility of AgI in NaI solution is less | vedclass

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(B) The solubility of a sparingly soluble salt like $AgI$ decreases in the presence of a common ion due to the common ion effect.$AgI(s) \rightlefthar

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Of common ion effect

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(B) The solubility of a sparingly soluble salt like $AgI$ decreases in the presence of a common ion due to the common ion effect.$AgI(s) \rightleftharpoons Ag^+(aq) + I^-(aq)$$NaI(aq) \rightarrow Na^+(aq) + I^-(aq)$In a $NaI$ solution,the concentration of $I^-$ ions increases. According to Le Chatelier's principle,the equilibrium of the dissolution of $AgI$ shifts to the left,thereby decreasing its solubility.

The solubility of $AgI$ in $NaI$ solution is less than that in pure water because

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