Question

what do you mean by a precipitation reaction? explain by giving example​

Answer 1

Answer:

Precipitation reactions occur when cations and anions in aqueous solution combine to form an insoluble ionic solid called a precipitate. A precipitate is a solid that forms out of solution.

A common example is that of the mixing of two clear solutions: Silver nitrate (AgNO

3

) and sodium chloride (NaCl):

AgNO

3

(aq)+NaCl(aq)→AgCl(s)↓+NaNO

3

(aq)

The precipitate forms because the solid (AgCl) is insoluble in water.

Answer 2

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Precipitation refers to a chemical reaction that occurs in aqueous solution when two ions bond together to form an insoluble salt, which is known as the precipitate

A precipitation reaction can occur when two solutions containing different salts are mixed, and a cation/anion pair in the resulting combined solution forms an insoluble salt; this salt then precipitates out of solution

The following is a common laboratory example of a precipitation reaction. Aqueous silver nitrate (AgNO3) is added to a solution containing potassium chloride (KCl), and the precipitation of a white solid, silver chloride (AgCl), is observed:

AgNO3 (aq) + KCl (aq) → AgCl (s) + KNO3(aq

Note that the product silver chloride is the precipitate, and it is designated as a solid. This reaction can be also be written in terms of the individual dissociated ions in the combined solution. This is known as the complete ionic equation

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