• Subject:


  • Topic:


When a man inhales air containing normal concentration of O2 as well as CO he suffers from suffocation because

(a) CO reacts with O2 reducing its percentage in air

(b) haemoglobin combines with CO instead of O2 and forms carboxyhaemoglobin

(c) CO affects diaphragm and intercostal muscles

(d) CO affects the nerves of the lungs.