A voltmeter reads zero although fresh different metals and electrolyte are present. Which fault is most likely?
The metals are too far apart in reactivity
One voltmeter lead is disconnected
The electrodes are too small
The electrolyte is too dilute
38 exam-style questions on Edexcel GCSE Chemistry 6.4 Chemical cells and fuel cells, covering 6.4.1 Chemical cells and fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.