Chemistry Past Questions and Answers

A few drops of concentrated HNO\(_3\) is added to an unknown solution and boiled for a while. If this produces a brown solution, the cation present is likely to be

The bleaching action of chlorine gas is effective due to the presence of

In the laboratory preparation of oxygen, dried oxygen is usually collected over

The property of concentrated H₂SO₄ that makes it suitable for preparing HNO₃ is its

Bronze is preferred to copper in the making of medals because it