Sulfur dioxide, SO2\text{SO}_2SO2, and silicon dioxide, SiO2\text{SiO}_2SiO2, are both oxides of Group 14 and Group 16 non-metallic elements.
Sulfur dioxide has a boiling point of −10∘C-10^\circ\text{C}−10∘C.
Silicon dioxide has a boiling point of 2230∘C2230^\circ\text{C}2230∘C.
Explain why the boiling points of sulfur dioxide and silicon dioxide are so different.
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.