Damp blue litmus paper is put into a test tube of chlorine. A student records that the paper turned red and then turned white. What does the white colour show?
The chlorine gas is an acid in water.
The chlorine gas is neutral in water.
The chlorine gas has bleached the paper.
The chlorine gas has dried out the paper.
40 exam-style questions on AQA GCSE Chemistry 8.2 Identification of common gases, covering 8.2.1 Test for hydrogen, 8.2.2 Test for oxygen, 8.2.3 Test for carbon dioxide, and 8.2.4 Test for chlorine. Each one has a worked solution and a mark scheme showing where the marks go.