Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryIonic Equilibria2 Marks
Question
Define the term common ion effect.
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Answer
Common ion effect : The suppression of the degree of dissociation of a weak electrolyte by the addition of a strong electrolyte having an ion in common with the weak electrolyte is called common ion effect. For example, $CH _3 COOH$ and $CH _3 COONa$ have common ion $CH _3 COO ^{-}$.
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