Exam Focus

🎯 Exam Focus

Frequently Examined

Nanoparticles appear regularly in chemistry exams. Common question patterns:

• Explain what a nanoparticle is — size range (1-100 nm) and definition (1-2 marks)
• Explain why nanoparticles are useful as catalysts — high surface area to volume ratio (2 marks)
• Describe an application of nanoparticles and explain why their properties make them suitable (2-3 marks)
• Evaluate the use of nanoparticles — benefits vs health/safety concerns (3-4 marks)
• Higher tier: Describe the structure and uses of fullerenes or graphene (2-3 marks)

Evaluation questions require you to state both the benefits AND the risks/uncertainties. Show balanced thinking.

Edexcel 1CH0: Examined in Paper 1 (1CH0/1). Edexcel includes nanoparticles and their uses and risks — this topic appears in the "applications of chemistry" part of Paper 1. Students should be able to explain high surface area to volume ratio as a benefit for catalysis and describe health and safety concerns from unknown long-term effects. In Edexcel-style questions, the command word "Suggest" appears frequently — use your chemistry knowledge to apply to an unfamiliar context.