Question 10
HThe figure shows damp blue litmus paper before and after it was held in a test tube of chlorine.
Figure: Damp blue litmus paper before and after it was held in a test tube of chlorine
a.[1]
Give the result of this test that identifies chlorine.
b.[2]
The figure shows that the paper turns red before it turns white. Explain why the paper turns red.
c.[2]
A student repeats the test using dry litmus paper. Predict the result of the test and give a reason for your prediction.
8.2 Identification of common gases Questions
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.