Question 9
Carbon and its CompoundsIt is dangerous to inhale CO(g) mainly because it
- A.competes with oxygen in the blood
- B.can cause injury to the nervous system
- C.can cause lung cancer
- D.competes with CO2(g) in the blood
Show the answer and explanation
Answer: A (competes with oxygen in the blood)
Explanation
Carbon(II) oxide binds to haemoglobin far more strongly than oxygen, so the blood cannot carry enough oxygen.