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Question : When a man inhales air containing normal concentration of O_2 as well as CO he suffers from suffocation because

Answer»

CO reacts with `O_2` REDUCING its PERCENTAGE in air
Haemoglobin combines with CO instead of `O_2` and forms carboxyhaemoglobin
CO affects DIAPHRAGM and INTERCOSTAL muscles
CO affects the NERVES of the lungs

Answer :B


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