Multiple choice

The chief constituent of gobar gas is

  1. carbon monoxide

  2. butane

  3. methane

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

Gobar gas (biogas) produced from anaerobic digestion of animal dung contains 50-75% methane, making it the primary constituent. Carbon monoxide is not produced in significant quantities during anaerobic digestion, and ethane/butane are not major products.

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