A student makes three statements about chlorine and hydrogen chloride.
Statement 1: hydrogen chloride dissolves in water to form a solution containing H+\mathrm{H^{+}}H+ ions, which turns blue litmus red
Statement 2: dry hydrogen chloride gas turns dry blue litmus paper red
Statement 3: chlorine gas turns damp blue litmus paper red and then bleaches it
Which statements are correct?
1 only
2 and 3 only
1, 2 and 3
1 and 3 only
41 exam-style questions on Edexcel GCSE Chemistry 7.2 Group 7, covering 7.2.1 Physical properties of the halogens, 7.2.2 Reactions of the halogens, 7.2.3 Relative reactivity and displacement reactions of the halogens, and 7.2.4 Halogen displacement as a redox reaction. Each one has a worked solution and a mark scheme showing where the marks go.