Graphite is used as a lubricant in machinery that becomes very hot, where oil would burn away. Which two properties of graphite make it suitable for this use?
It is very hard and it conducts electricity very well.
It is slippery and it conducts electricity very well.
It is very hard and it has a very high melting point.
It is slippery and it has a very high melting point.
40 exam-style questions on AQA GCSE Chemistry 2.3 Structure and bonding of carbon, covering 2.3.1 Diamond, 2.3.2 Graphite, and 2.3.3 Graphene and fullerenes. Each one has a worked solution and a mark scheme showing where the marks go.