HARDMCQ SINGLENEET ChemistryInorganic ChemistryEnvironmental ChemistryAchiever Section

The greatest affinity for haemoglobin is shown by which of the following

A.NO

B.CO✓ Correct

C.O₂

D.CO₂

Explanation

Haemoglobin in humans has a very high affinity for carbon monoxide, forming carboxyhemoglobin which is very bright red in colour. Carbon monoxide is thus problematic for humans because it has affinity higher than of oxygen.

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