During the extraction of copper, copper oxide (CuO\text{CuO}CuO) is heated with carbon (C\text{C}C) to yield copper metal and carbon dioxide gas.
What happens to the copper oxide during this chemical reaction?
the copper oxide is oxidised
the copper oxide is neutralised
the copper oxide is thermal decomposed
the copper oxide is reduced
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.