A) \[{{O}_{2}}\]
B) \[C{{O}_{2}}\]
C) \[CO\]
D) \[N{{O}_{2}}\]
Correct Answer: C
Solution :
Carboxy haemoglobin is formed as a result of combining of haemoglobin with carbon monoxide instead of oxygen. Affinity of CO for haemoglobin is 200 times more than oxygen. Carboxy haemoglobin is a non-dissociable compound. Haemoglobin combines with oxygen to form a loose reversible complex called oxyhaemoglobin. The degree of saturation of haemoglobin with oxygen depends upon oxygen tension. Haemoglobin with \[C{{O}_{3}}\] forms unstable compound called carbamino haemoglobin. In this way, about 23% of total blood \[C{{O}_{2}}\] is transported.
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