A) \[CO\]
B) \[C{{O}_{2}}\]
C) \[S\]
D) \[{{N}_{2}}\]
Correct Answer: A
Solution :
Carbon monoxide (CO) is the main pollutant of atmosphere. The maximum emission of CO occurs due to burning of petrol. In human beings the CO causes headache and dificulty in breathing. The haemoglobin has greater affinity for CO than oxygen.
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