Q. The greatest affinity for haemoglobin is shown by
A) NO
B) CO
C) $O_{2}$
D) $CO_{2}$
Explanation
(a)
Nitrous oxide (NO) has the highest affinity towards haemoglobin. However, due to its larger size, it cannot be inhaled
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.