Question

What is pricipitation reaction ?​

Answer 1

In aqueous solution, precipitation is the process of transforming a dissolved substance into an insoluble solid from a super-saturated solution. The solid formed is called the precipitate. 

Answer 2

Answer:

A precipitation reaction is a type of chemical reaction in which two soluble salts in aqueous solution combine and one of the products is an insoluble salt called a precipitate. ... Note that not all ionic compounds react to form precipitates. Also, a precipitate may form under certain conditions, but not others.