Question

On a cold winter night, the person sleeping in a room with closed door and windows with a coal fire burning inside may die due to the excessive accumulation of:
A. nitrogen monoxide
B. nitrogen dioxide
C. carbon dioxide
D. carbon monoxide

Answer 1

Answer:

carbon dioxide

Explanation:

the person can die because he is sleeping in closed door and window and burning burning inside main die due to excessive carbon dioxide

Answer 2

D. carbon monoxide

Explanation:

On a cold winter night, a person sleeping in a room with closed door and windows with a coal fire burning inside may die to the excessive accumulation of carbon monoxide. A burning fire in a closed room will deplete the supply of oxygen in the room and make breathing difficult. Further, incomplete burning of coal leads to the formation of carbon monoxide which is very poisonous. All this can be dangerous to the people in the room.

Option D is the answer.