Chemistry · Paper 2 · Foundation + Higher · C9
Carbon monoxide is toxic, colourless and odourless, so people cannot reliably detect it by sight or smell. It binds strongly to haemoglobin, reducing the blood’s ability to carry oxygen. Suitable alarms and properly maintained appliances help manage the risk.
No timer. Read the explanation after each answer.
Daily 5 · Exam practice · Revision sheet ↓
Foundation + Higher · C9. All C9 lessons are shared by Foundation and Higher Tier.
AQA Combined Science Trilogy 8464 · 5.9.3.2. Original notes, questions and diagrams. Models are simplified; illustrative data are labelled.