This exam focus covers Exam Focus within Simple Molecules for GCSE Chemistry. Revise Simple Molecules in Bonding & Structure for GCSE Chemistry with 20 exam-style questions and 21 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 9 of 11 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 9 of 11
Practice
20 questions
Recall
21 flashcards
🎯 Exam Focus
Frequently Examined
Simple molecules feature in most chemistry papers. The most common question patterns:
- Explain the low melting point of a named simple molecular substance — always reference "weak intermolecular forces" not "weak covalent bonds" (2 marks)
- Explain why it doesn't conduct electricity — "no ions and no free electrons" (2 marks)
- Compare melting points of two simple molecular substances of different sizes (2 marks)
- Identify the type of structure from given properties (low MP, doesn't conduct) (1 mark)
A question may give you unfamiliar molecules — apply the same principles. If it's simple molecular: low MP, doesn't conduct, often liquid or gas at room temperature.
Edexcel 1CH0: Examined in Paper 1 (1CH0/1). Edexcel tests simple molecular structures through explain questions on low melting point (weak intermolecular forces, NOT weak covalent bonds) and non-conductivity (no ions, no free electrons). Comparing melting points of two simple molecules of different size is a common 2-mark question. In Edexcel-style questions, the command word "Suggest" appears frequently — use your chemistry knowledge to apply to an unfamiliar context.
Keep building this topic
Read this section alongside the surrounding pages in Simple Molecules. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Simple Molecules
Which type of force holds simple molecules together as a substance?
Explain why chlorine (Cl2) has a low boiling point.
Quick Recall Flashcards
20 questions on Simple Molecules — practise free
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