CAPE Chemistry Unit 2 · 2005 · Paper 2 · Question 6(b)

Standard reduction potentials are given for halogens (Cl2, Br2, I2) and thiosulphate reaction pathways.

Use the given redox potential values to explain the similarities and differences in the behaviour of the halogens with the thiosulphate (S2O3 2-) ion.

This question uses a figure or table from the paper — you'll see it when you practise.