Q. Which of the following combines irreversibly with blood haemoglobin?
A) $SO_{2}$
B) $O_{2}$
C) CO
D) $CO_{2}$
Explanation
Haemoglobin has 250 times more affinity for carbon monoxide than oxygen.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.