A small block is recovered from a demolished building so that it can be sorted. Tests show that the block is hard and breaks rather than bends. It withstands a large squashing force but breaks under a much smaller pulling force.
Which type of material is the block?
A carbon-fibre composite
A clay ceramic
A polymer
A metal
136 exam-style questions on OCR GCSE Chemistry 6.1 Improving processes and products, covering 6.1.1 Extracting metals industrially and by electrolysis, 6.1.2 Life cycle assessment and recycling, 6.1.3 Biological methods of metal extraction, 6.1.4 The Haber process and the production of fertilisers, 6.1.5 Alloys and their uses, 6.1.6 Corrosion and its prevention, 6.1.7 Comparing and selecting materials, and 6.1.8 Industrial conditions, rate and position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.