1.

On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because __________________?

A. Of clotting of blood
B. Of jamming of respiratory tract
C. It forms carboxyhemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen
D. It forms CO2 by combining with oxygen present in the blood
Answer» D. It forms CO2 by combining with oxygen present in the blood


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