Most of the explosions in mines occur due to the mixing of

  1. Hydrogen with oxygen
  2. Oxygen with acetylene
  3. Methane with air
  4. Carbon dioxide with ethane
  5. None of the above/ More than one of the above.

Answer (Detailed Solution Below)

Option 3 : Methane with air
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The correct answer is Methane with air.

Key Points

  • Methane explosions occur when methane gas from mining is built up and cannot escape because of high pressure.
  • For example, a coal mine methane (CMM) is a mixture of methane and air present in active mining sites.
  • This mixture of gas is released during the process of coal mining causes the explosion in the mining area.
  • From the above explanation, we can see that most of the explosions in mines occur due to a mixture of air and methane.
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