A punch tool cuts shapes from metal sheets. Its cutting edge must keep its shape when a large force is applied. Which property of high-carbon steel makes it suitable for the tool?
It can be remoulded after being heated
It is flexible when a force is applied
It is very hard and strong
It is protected by its natural oxide layer
118 exam-style questions on AQA GCSE Chemistry 10.3 Using materials, covering 10.3.1 Corrosion and its prevention, 10.3.2 Alloys as useful materials, and 10.3.3 Ceramics, polymers and composites. Each one has a worked solution and a mark scheme showing where the marks go.