Multiple choice

Which of the following is called marsh gas?

  1. Butane

  2. Propane

  3. Methane

  4. Ethane
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Methane (CH4) is commonly known as marsh gas because it is produced by the anaerobic bacterial decomposition of vegetable matter in swampy or marshy areas. It is the simplest alkane and the main component of natural gas. Other gases like butane and propane are found in LPG but are not called marsh gas.

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