SAQ : Using barium chloride solution, how will you identify which bottle contains H2SO4 out of three bottles containing HCl, H2SO4 and HNO3, respectively?

Question

Using barium chloride solution, how will you identify which bottle contains H₂SO₄ out of three bottles containing HCl, H₂SO₄ and HNO₃, respectively?

Answer

To identify which bottle contains H₂SO₄ using barium chloride solution, we can follow these steps:

1. Add a few drops of barium chloride solution to a small amount of each acid in separate test tubes.
2. If H₂SO₄ is present, a white precipitate of barium sulfate (BaSO₄) will form in the test tube containing H₂SO₄.
3. The test tube containing HCl or HNO₃ will not show any reaction with the barium chloride solution.

Therefore, the bottle containing H₂SO₄ can be identified by the formation of a white precipitate of barium sulfate in the test tube containing the acid.