Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines? 

(a) Hydrogen and Oxygen 

(b) Oxygen and acetylene 

(c) Methane and air 

(d) Carbon dioxide and methane

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1 Answers

(c) Cause of blast in a mine in generally mixture of methane and air. CH4 in the main gas exerted from a mine, when it comes in contact with air, explosions take place.

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