What is double displacement reaction ? Give one example.

Explanation

The reaction in which the ions in the reactants are exchanged to form a precipitate are called double displacement reactions.
Example: When silver nitrate `(AgNO_3)` solution is added to sodium chloride (NaCl) solution, a white precipitate of silver chloride (AgCl) is formed along with sodium nitrate `(NaNO_3)`
`underset("nitrate")underset("Silver")(AgNO_(3(aq)))+underset("chloride")underset("Sodium")"NaC"l_((aq))rarrunderset("(precipitate)")underset("Silver chloride")(AgCdarr)+underset("nitrate")underset("Sodium")(NaNO_(3(aq)))`