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Question

Carbon monoxide is pollutant as it

A
Inhibits glycolysis
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B
Combines with haemoglobin
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C
Inactivates nerves
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D
Combines with oxygen
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Solution

The correct option is B Combines with haemoglobin
CO

CO refers to carbon monoxide. It is formed due to incomplete combustion of fuels.

Combination with haemoglobin

CO has more affinity for haemoglobin than oxygen.
  1. It forms a stable compound with haemoglobin called carboxyhemoglobin.
  2. It occupies the oxygen binding sites in haemoglobin and therefore, prevents the transport of oxygen to various body parts through the blood.

Final answer

(D) Combines with haemoglobin

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