Composition of Biogas: Methane and Carbon Dioxide

Question

Biogas is a mixture of:

Select an answer

Question & Answer (English)

Biogas is a mixture of:

  1. Methane and Oxygen
  2. Methane ($~60\%$) and $CO_2$ — Correct Answer
  3. Ethane and $CO_2$
  4. Hydrogen and Oxygen
Explanation:
Correct Answer Explanation

Biogas is produced through the anaerobic digestion of organic matter. It is a mixture consisting mainly of Methane ($CH_4$) (approx. 50-75%) and Carbon Dioxide ($CO_2$) (approx. 25-50%). It may also contain small amounts of hydrogen sulfide and moisture. Methane is the combustible component.

Incorrect Options Analysis
  • Methane and Oxygen: Oxygen inhibits the anaerobic process used to make biogas.
  • Ethane: Not a major component of biogas.

प्रश्न एवं उत्तर (हिंदी)

बायोगैस किसका मिश्रण है?

  1. मीथेन और ऑक्सीजन
  2. मीथेन ($~60\%$) और $CO_2$ — सही उत्तर
  3. इथेन और $CO_2$
  4. हाइड्रोजन और ऑक्सीजन
स्पष्टीकरण:
सही उत्तर का स्पष्टीकरण

बायोगैस मुख्य रूप से मीथेन ($CH_4$) (लगभग 60%) और कार्बन डाइऑक्साइड ($CO_2$) का मिश्रण है। यह जैविक कचरे के अवायवीय अपघटन (ऑक्सीजन की अनुपस्थिति में सड़ने) से बनती है। इसमें मीथेन ही ईंधन के रूप में जलती है।

📚 About this Topic — GK Important Topics

This multiple choice question is from GK Important Topics, Pollution & Climate Change. It has 4 options with a detailed explanation of the correct answer and is available in both English and Hindi (द्विभाषी). Practice more MCQs from GK Important Topics to strengthen your preparation.

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