A student makes three statements about forms of carbon.
Statement 1: C60\mathrm{C_{60}}C60 changes state at a much lower temperature than diamond because only weak forces between C60\mathrm{C_{60}}C60 molecules are overcome
Statement 2: graphene conducts electricity because, like a layer of graphite, it has delocalised electrons
Statement 3: graphene is a weak material because it is only one atom thick
Which statements are correct?
1 only
2 and 3 only
1 and 2 only
1, 2 and 3
48 exam-style questions on Edexcel GCSE Chemistry 2.5 Types of substance, covering 2.5.1 Classifying substances by structure and bonding, 2.5.2 Properties of ionic and simple molecular substances, 2.5.3 Giant covalent structures: diamond and graphite, 2.5.4 Fullerenes, graphene and simple polymers, 2.5.5 Properties of metals and non-metals, and 2.5.6 Limitations of bonding models and representations. Each one has a worked solution and a mark scheme showing where the marks go.