Which gas is mainly present in cow dung gas?

The correct answer is Methane.

Key Points

• Gobar gas or Cow Dung gas is also known as biogas.
• Biogas is produced through anaerobic decomposition of organic wastes from animals and plants.
• Biogas is primarily a mixture of mainly methane and carbon dioxide and methane is a major component of biogas.
• Methane:
  • Methane (CH4), is a gas produced by a group of colonic anaerobes, absorbed from the colon and excreted in expired air.
  • Methane is a colourless odourless gas. 
  • It is also known as marsh gas or methyl hydride.​