What is common ion effect? addition of NH4Cl to NH4OH results in the decrease of OH- ion concentration. explain
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Answer: The common ion effect refers to adding to a solution at equilibrium, a salt which contains an ion in common with one of the products of that equilibrium. The effect is to shift the equilibrium toward the reactant side of the equation.
NH4Cl is strong electrolyte, it decomposes completely. While the NH4OH is weak base it does not ionises completely. Thus due to presence of common ion NH4+ in NH4Cl, it supresses the ionisation of weak base NH4OH in order to decrease the OH-concentration so that higher group cations will not get precipitated
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NH4Cl is strong electrolyte, it decomposes completely. While the NH4OH is weak base it does not ionises completely. Thus due to presence of common ion NH4+ in NH4Cl, it supresses the ionisation of weak base NH4OH in order to decrease the OH-concentration so that higher group cations will not get precipitated
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