BPSC CCE Prelims
Green Energy Technology Previous Year Questions (PYQs)
Practice solved questions for Green Energy Technology with detailed step-by-step solutions, key insights, and trend analysis for BPSC CCE PRELIMS.
Solved Previous Year Questions
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Which among the following is the main constituent of biogas?
Detailed Explanation:
Biogas is produced by anaerobic digestion of organic matter and contains 50–70% methane (CH₄), which is its primary combustible component.
Propane, butane, and ethane are constituents of petroleum gas and natural gas, not biogas.
Therefore, methane is the main constituent of biogas, making Option 4 the correct answer.
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