Statement 1: In a giant covalent structure, all the atoms are joined by strong covalent bonds in a continuous network.
Statement 2: In a polymer, the chains are joined to each other by strong covalent bonds.
Statement 3: In a simple molecular substance, the covalent bonds within each molecule are strong, but the forces between the molecules are weak.
Statement 4: In a metal, each delocalised electron is shared between only two neighbouring positive ions.
Which statements are correct?
1 and 3 only
1, 2 and 3 only
3 and 4 only
1, 3 and 4 only
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.