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Solution


Q.

Haemoglobin is having maximum affinity with 
 a) Carbon dioxide                      b) Carbon monoxide               c) Oxygen                 d) Ammonia

 
1 A
2 B
3 C
4 D

Ans.

(b) Haemoglobin is having 250 times more affinity for carbon monoxide as compared to oxygen, forming a cherry-red compound carboxyhaemoglobin.