14 9
This question is about the metals used in cars. (a) Aluminium and steel are used to make car bodies.
Write about the advantages of using aluminium rather than steel to make car bodies. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] (b) Look at the diagram. It shows how impure copper is purified. power pack + –
Describe how impure copper can be purified by electrolysis. You may wish to put some labels on the diagram to help your answer. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [3] [Total: 5] Š OCR 2014