A hydrogen fuel cell and a rechargeable battery both produce electricity. Which statement describes a difference between the way the two of them work?
Only the battery uses two electrodes that are made of different materials
Only the fuel cell contains an electrolyte through which ions can move
Only the battery produces a potential difference between its electrodes
Only the fuel cell needs a substance to be supplied from outside the cell
40 exam-style questions on AQA GCSE Chemistry 5.2 Chemical cells and fuel cells, covering 5.2.1 Cells and batteries, 5.2.2a Fuel cells, and 5.2.2b Half equations for hydrogen fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.