Q. Which compound is known as ‘Firedamp of coal mines’?

A
Ethanol
B
Methane
C
Benzene
D
Nitrous oxide
Solution:

Methane is also known as marsh gas.
Firedamp is flammable gas found in coal mines. It is the name given to a number of flammable gases, especially methane. It is particularly found in areas where the coal is bituminous.

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