Q.

Which of the following is chiefly present in LPG (Liquefied Petroleum Gas)?

A. Methane
B. Ethane
C. Propane
D. Butane
Answer» D. Butane
Explanation: Liquid petroleum gas is a flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles. It is increasingly used as an aerosol propellant and a refrigerant, replacing chlorofluorocarbons in an effort to reduce damage to the ozone layer. it has primarily butane (C4H10).
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