During a cold winter, a blocked ventilation duct in a residential gas heater causes incomplete combustion of the hydrocarbon fuel, releasing carbon monoxide into the living space.
Explain the physiological mechanism by which carbon monoxide acts as a toxic gas in the human body.
Practise Edexcel GCSE Chemistry Fuels with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.