What is the primary component of LPG (liquefied petroleum gas)?
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A.
Methane
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B.
Carbon dioxide
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C.
Nitrogen
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D.
Propane
Correct Answer:
D. Propane
Explanation:
Liquefied Petroleum Gas (LPG) is a flammable hydrocarbon mixture primarily composed of propane and butane. While the exact proportions can vary based on the manufacturer, intended application, or regional climate, a standard blend typically contains approximately 50% butane and 48% propane, with trace amounts of pentane and other hydrocarbons. Because butane often serves as the majority component in common commercial mixtures, it is identified as the primary constituent for this classification. In contrast, methane is the main component of natural gas, and nitrogen is an atmospheric gas not found in significant quantities within LPG. Therefore, butane is the most accurate choice among the options provided.
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