Question

Choose from the list of substances:

Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum.

An aqueous salt solution used for testing sulphate radical.

Answer 1

Barium chloride

Explanation:

Barium chloride solution is used to test for the sulphate radical \[\ce{(SO^{2-}_4})\] because it forms a white precipitate of barium sulphate.