Q. If the level of carboxyhaemoglobin in blood reaches upto……, the functioning of central nervous system is severely affected which results in death.
A) 1 to 2%
B) 0.20 to 0.30%
C) 0.30 to 0.40%
D) 0.1 to 5%
Explanation
Carbon monoxide is a poisonous gas. It combines with haemoglobin more rapidly than oxygen to form carboxy haemoglobin. A carbon monoxide pressure of about 0.7 mm Hg (conc. of about 1%) in alveolar air can be lethal.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.