A technician uses inert electrodes to electrolyse two aqueous solutions: zinc sulfate solution and copper(II) bromide solution.
A student predicts: "Both solutions will give oxygen at the anode, but they will give different products at the cathode."
Evaluate the student's prediction. Use the products at each electrode to justify your answer.
98 exam-style questions on OCR GCSE Chemistry 3.4 Electrolysis, covering 3.4.1 Products formed at the electrodes in electrolysis and 3.4.2 The technique of electrolysis. Each one has a worked solution and a mark scheme showing where the marks go.