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Question

The maximum affinity of haemoglobin is with


A

Carbon monoxide

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B

Carbon dioxide

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C

Oxygen

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D

Ammonia

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Solution

The correct option is

C

Carbon monoxide

Affinity of haemoglobin towards carbon monoxide is approximately 230 times greater than that for oxygen. Thus it can easily displace oxygen in the blood and can prove to be fatal.


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