Chemistry · Group 13 to Group 18 Elements
Assertion Carbon monoxide is a poisonous gas. Reason Carbon monoxide combines wi
Assertion Carbon monoxide is a poisonous gas. Reason Carbon monoxide combines with haemoglobin to form carboxyhaemoglobin whch prevents absorption of oxygen by it.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Both Assertion and Reason are incorrect
Step-by-step solution
Carbon monoxide binds to haemoglobin to form carboxyhaemoglobin, which has a much higher affinity than oxygen, preventing oxygen binding and transport, thereby causing poisoning. Thus the reason correctly explains why carbon monoxide is poisonous.
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