Which statement correctly describes a trend down Group 17 (Group 7) from chlorine to iodine?
The reducing power of the halide ions, X−\text{X}^-X−, increases.
The first ionization energy of the halogens increases.
The strength of the hydrogen–halogen bond in HX\text{HX}HX increases.
The oxidizing power of the halogens, X2\text{X}_2X2, increases.
37 exam-style questions on AQA A Level Chemistry Group 7(17), the halogens, covering Trends in properties and Uses of chlorine and chlorate(I). Each one has a worked solution and a mark scheme showing where the marks go.