The reaction of Barium chloride with Aluminium sulphate solution is an example for which type of chemical reaction ? Why ? Write the balanced chemical equation for this reaction.

Explanation

Barium chloride with aluminium sulphate solution
`3 BaCl_(2) + Al_(2) (SO_(4))_(3) rarr 3 BaSO_(4) darr + 2 AICI_(3)`
• It is a double displacement reaction The reactions in which the different atoms or group of atoms are displaced by other atoms or group of atoms, i.e. two compounds exchange their ions and one of the products formed is insoluble, are said to be double displacement reactions.
As in this case, Cl and `SO_(4)` ions are exchanged, it is known as double displacement reaction.
It is a precipitation reaction.
There if formation of precipitate `(BaSO_(4))` thus it is also known as precipitation reaction .