The gas that usually causes explosion in coal mines is

methane

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carbon monoxide

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carbon dioxide

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hydrogen

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Solution

The correct option is A methane
There are two main types of coal mine 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.
So, the correct option is 'methane'.

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Similar questions

Fires in underground coal mines usually occur due to the :

(a) explosive combustion

(b) deliberate combustion

(d) rapid combustion

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