Question

What do you mean by precipitation reaction give its one example?

Answer 1

The reaction in which precipitate is formed i.e unsoluble . Any reaction that produces a precipitate can be called a precipitation reaction. Precipitation reactions produce insoluble salts which settle down as precipitate. A precipitate is a solid product which separates out from a solution during a chemical reaction.

Answer 2

$<font color = blue><v >$

A reaction in which an insoluble solid (called precipitate) is formed is called a precipitation reaction.For Example:

Na2CO3 (aq) + CaCl2 (aq) → CaCO3 (s) + 2NaCl (aq)

Sodium Carbonate + Calcium Chloride → Calcium Carbonate + Sodium Chloride

In this reaction, calcium carbonate is obtained as a precipitate. Hence, it is a precipitation reaction.