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Common ion effect

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The degree of dissociation of an electrolyte (weak) is suppressed by the addition of another electrolyte (strong) containing a common ion, this is termed as common ion effect?

  

 Acetic acid is a weak electrolyte and its ionisation is suppressed in presence of a strong acid ( H+ ion as common ion) or a strong salt like sodium acetate (acetate ion is a common ion).

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