GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The gas usually causing explosions in coal mines is-
A
Carbon monoxide
B
Hydrogen
C
ethane
D
Air
Explanation: 

Detailed explanation-1: -There are two main types of coalmine explosions: methane and coal dust. Methane explosions occur when a buildup of methane gas contacts a heat source and there is not enough air to dilute the gas level below its explosion point.

Detailed explanation-2: -A gas explosion occurs when there is a gas leak in the presence of a spark or flame. Gases such as natural gas, methane, propane and butane are the most common types of gases to cause explosions because they are commonly used for heating purposes.

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