A person trapped in a poorly ventilated room with a coal heater suffers from hypoxia because a specific gas binds irreversibly to hemoglobin.
Q1. A person trapped in a poorly ventilated room with a coal heater suffers from hypoxia because a specific gas binds irreversibly to hemoglobin.
Answer: Carbon monoxide
Explanation: CO binds to hemoglobin more strongly than O2; CO2 is tempting but it binds to different sites and with much lower affinity.