Multiple choice

Marsh gas mainly contains-

  1. C2H2

  2. H2S

  3. CH4

  4. CH3Cl
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Marsh gas is common name for methane (CH4), formed by anaerobic decomposition of organic matter in marshy areas. Ethyne (C2H2) is a different hydrocarbon, H2S is hydrogen sulfide with rotten egg odor, and CH3Cl is chloromethane.

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