Silicon dioxide, SiO2\mathrm{SiO_{2}}SiO2, and carbon dioxide, CO2\mathrm{CO_{2}}CO2, both contain covalent bonds.
Which statement correctly compares their structures?
Both are simple molecules, but silicon dioxide has stronger intermolecular forces.
Silicon dioxide is ionic because silicon is a metal, but carbon dioxide is covalent.
Both are giant covalent structures, but carbon dioxide has weaker covalent bonds.
Silicon dioxide has a giant covalent structure, but carbon dioxide is molecular.
64 exam-style questions on OCR GCSE Chemistry 2.2 Bonding, covering 2.2.1 Metals, non-metals and the Periodic Table, 2.2.2 Types of chemical bonding and dot and cross diagrams, 2.2.3 Limitations of bonding models, and 2.2.4 Reactivity, atomic number and the modern Periodic Table. Each one has a worked solution and a mark scheme showing where the marks go.