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chemical engineering environmental engineering
1. On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because
(A): it forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen.
(B): it forms CO2 by combining with oxygen present in the blood.
(C): of clotting of blood.
(D): of jamming of respiratory tract.
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