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JAMB Chemistry 2010 Question 17

Question 17

Carbon and its Compounds

Carbon (II) oxide is considered dangerous if inhaled mainly because it

  1. A.can cause injury to the nervous system
  2. B.competes with oxygen in the blood
  3. C.competes with carbon (IV) oxide in the blood
  4. D.can cause lung cancer
Show the answer and explanation

Answer: B (competes with oxygen in the blood)

Explanation

CO binds to haemoglobin much more strongly than oxygen, so the blood carries less oxygen.