Question

Fill in the blanks. Choose from the following:

[oleum, two, three, acid, black, white, lead nitrate, ethene, sulphate, barium chloride solution, sulphur dioxide, normal]

Sulphate ion can be tested by ______ or ______.

Answer 1

Sulphate ion can be tested by barium chloride solution or lead nitrate.

Explanation:

Sulphate ions react with barium chloride solution or lead nitrate solution to form a white precipitate.