Question

What do you mean by a precipitation reaction ? Explain by giving examples.​

Answer 1

▪️A precipitation reaction refers to the formation of an insoluble salt when two solutions containing soluble salts are combined. The insoluble salt that falls out of solution is known as the precipitate, hence the reaction's name. Precipitation reactions can help determine the presence of various ions in solution.

• AgNO3(aqueous) + KCl(aqueous) —–AgCl(precipitate) + KNO3(aqueous)
• 2KOH(aqueous) + CaCl2(aqueous)—-Ca(OH)2(aqueous) + 2KCl(aqueous)
• AgNO3(aqueous) + NaCl(aqueous) —- AgCl↓ + NaNO3 (aqueous)
• Mg(OH)2(s) + 2HCl (aqueous) ——— MgCl2(aqueous) + 2H2O(l)

Answer 2

Answer:

When two reactants in solution react and one or more of the products is insoluble or forms a precipitate, the reaction is called a precipitation reaction. For example, when a solution of iron chloride and ammonium hydroxide are mixed, a brown precipitate of iron hydroxide is formed. ... Iron salt and water are produced.

Explanation:

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