Question

On adding a drop of barium chloride solution to an aqueous solution of sodium sulphate , white precipitate is obtained.

i.
Write a balanced chemical equation of the rection involved.
ii.
What other name can be given to this precipitation reaction?

Answer 1

i) Na2SO4 + BaCl2 ---------> 2NaCl + BaSO4

ii) This can also be called as double displacement reaction.

Answer 2

Answer:

A white ppt. ( precipitate ) is formed.

Na₂SO₄ ( aq ) + BaCl₂ ( ag ) ⇒  2 NaCl ( aq ) + BaSO₄ ( ↓ )

Doubled Displacement reaction

The reaction in which there is an exchange of ions between the reactants.