Question

what do you meant by precipitation reaction with one example​

Answer 1

Precipitation reaction

A chemical reaction in which a insoluble salt or white precipited is formed , called precipitation reaction

Example :

$\star$When barium chloride solution is added to an aqueous solution of sodium sulphate , a white precipited of barium sulphate is obtained

BaCl2 + NaSO4 $\to$BaSO4 + 2NaCl

$\star$When silver nitrate is added to an aqueous solution of sodium chloride , a white precipited of silver chloride (AgCl) , which is soluble in NH4OH is obtained

AgNO3 + NaCl $\to$AgCl + NaNO3

Answer 2

A reaction in which an insoluble solid called precipitate is formed that separates from the solution is called a precipitation reaction .

Example :- When a solution of iron (III)

chloride and ammonium hydroxide are

mixed , a brown precipitate of iron (III)

hydroxide is formed .