A) People sleeping in closed room with coal fire burning inside, have died due to \[C{{O}_{\,2}}\] poisoning.
B) Flame is only produced when gaseous substances burn.
C) Fullerenes are allotropes of carbon.
D) Intake of methyl alcohol can cause death.
Correct Answer: A
Solution :
Incomplete burning of coal in a closed room produces carbon monoxide. Carbon monoxide combines with haemoglobin more efficiently than oxygen, causing deficiency of oxygen in tissues and cells which can lead to death.
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