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

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

(1) Methane 

(2) Ethane 

(3) Propane 

(4) Butane 


Answer: (4) 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 butane (C4H10) primarily. 


Which of the following is chiefly present in LPG (Liquefied Petroleum Gas)?   (1) Methane   (2) Ethane   (3) Propane   (4) Butane


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