Sulfur dioxide, SO2\text{SO}_2SO2, is a toxic gas emitted during volcanic eruptions. Within each molecule, the sulfur atom is joined to two oxygen atoms by covalent bonds.
Explain, in terms of structure and bonding, why sulfur dioxide has a low boiling point (−10∘C-10^\circ\text{C}−10∘C) and exists as a gas at room temperature.
59 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.