In which substance is there no covalent bonding?
Chlorine gas, Cl2\text{Cl}_2Cl2
Poly(propene), a polymer
Magnesium chloride, MgCl2\text{MgCl}_2MgCl2
Silicon dioxide, SiO2\text{SiO}_2SiO2
98 exam-style questions on AQA GCSE Chemistry 2.1 Chemical bonds, ionic, covalent and metallic, covering 2.1.1 Chemical bonds, 2.1.2 Ionic bonding, 2.1.3 Ionic compounds, 2.1.4 Covalent bonding, and 2.1.5 Metallic bonding. Each one has a worked solution and a mark scheme showing where the marks go.