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A litre of solution is saturated with AgCl. To this solution if 1.0 x 10^-4 mole of solid NaCl is added, what will be the [Ag^+], assuming no volume change?

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A litre of solution is saturated with AgCl. To this solution if 1.0 x 10-4 mole of solid NaCl is added, what will be the [Ag+], assuming no volume change?

(a) More

(b) Less

(c) Equal

(d) Zero

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Correct answer: (b) Less

Explanation:

The dissociation of a weak electrolyte (AgCl) is suppressed on adding the strong electrolyte having a common ion (Cl-), hence concentration of Ag+ ion will be less.

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