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Which of the following equations is a correct example of a precipitation reaction?

Answer and explanation

Correct answer: \(\mathrm{AgNO_3(aq) + NaCl(aq) \rightarrow AgCl(s) + NaNO_3(aq)}\)

In option A, ions from two aqueous solutions exchange, producing insoluble \(\mathrm{AgCl}\) as a solid. Formation of an insoluble solid from aqueous solutions identifies a precipitation reaction. In option B, zinc displaces copper from its salt solution, so it is a displacement reaction rather than a precipitation reaction.

Related tags

Chemical ReactionsPrecipitation ReactionDouble DisplacementChemical EquationsClass 10 Science

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