Which of the following, when inhaled dissolves in the blood haemoglobin rapidly then O2?
Correct answer: B. CO
- A. SO2
- B. CO
- C. N2O
- D. O3
Explanation
Carbon monoxide binds with haemoglobin much more strongly than oxygen does, forming carboxyhaemoglobin and reducing oxygen transport in the blood. This makes CO especially dangerous even at relatively low concentrations.
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