Pearson Edexcel GCSE (9-1) Chemistry practice

Iron is known to rust when exposed to air and moisture, a process that involves oxidation. Gold, however, does not display this behaviour and remains shiny over long periods. Using your knowledge of the reactivity series, compare the resistance to oxidation of iron and gold, justifying your answer. [3 marks]

Try the question first, then check the answer and practise the same topic again.