Question

Haemoglobin of the human blood forms a stable complex compound with with of the following gas leading to death ?
A. Oxygen
B. carbon dioxide
C. carbon monoxide
D. Nitrogen

Answer 1

Correct Answer - C
98.5% of `O_(2)` is transported by blood with the help of haemoglobin. The molecule of haemoglobin has 250 times more affinity with CO as compare to ` O_(2)` and thusm prevents `O_(2)` transport which leads to death.