In the final stage of extracting copper from bioleaching leachates, a copper-containing solution is electrolysed to obtain the metal.
An advantage of obtaining a metal by electrolysis is that
the metal produced is of very high purity
the process requires very little electrical energy
electrolysis is cheap to set up and run on a large scale
electrolysis is the only method suitable for extracting unreactive metals
Practise Edexcel GCSE Chemistry Obtaining and using metals 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.