Question

What will you observe when sulphur reacts with oxygen?how will you test the nature of the compound so formed?

Answer 1

S+O2----SO2
it means that when sulphur will react with oxygen it will give sulphur dioxide .

Answer 2

When sulphur reacts with oxygen, it forms sulphur dioxide. While testing it in the gas jar, we add a little water to the jas so as to make a solution of SO2. This solution when tested with litmus paper, turns blue litmus paper red