An industrial chemist sets up an electrolysis cell to recover copper from an acidic waste stream containing aqueous copper(II) sulfate, CuSO4(aq)\text{CuSO}_4(\text{aq})CuSO4(aq), using inert graphite electrodes as shown in the diagram below.
Which products are formed at the cathode and at the anode?
Copper at the cathode and oxygen at the anode\text{Copper at the cathode and oxygen at the anode}Copper at the cathode and oxygen at the anode
Hydrogen at the cathode and oxygen at the anode\text{Hydrogen at the cathode and oxygen at the anode}Hydrogen at the cathode and oxygen at the anode
Copper at the cathode and sulfur dioxide at the anode\text{Copper at the cathode and sulfur dioxide at the anode}Copper at the cathode and sulfur dioxide at the anode
Hydrogen at the cathode and sulfur dioxide at the anode\text{Hydrogen at the cathode and sulfur dioxide at the anode}Hydrogen at the cathode and sulfur dioxide at the anode
Electrolytic processes Questions
Practise Edexcel GCSE Chemistry Electrolytic processes with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.