The temperature close to the heating elements in an industrial furnace is very high. Cobalt is used to make parts fitted in this region. Which property of cobalt is most important for this use?
A high density
Good electrical conductivity
High hardness
A high melting point
91 exam-style questions on AQA GCSE Chemistry 1.3 Properties of transition metals, covering 1.3.1 Comparison with Group 1 elements and 1.3.2 Typical properties of transition metals. Each one has a worked solution and a mark scheme showing where the marks go.