Multiple choice Liquefied Petroleum Gas (LPG) consists of mainly: methane, ethane and hexane propylene, butane and propane ethane, hexane and nonane nonane, ethane and hexane Reveal answer Fill a bubble to check yourself B Correct answer Explanation Liquefied Petroleum Gas (LPG) is a mixture of flammable hydrocarbon gases. Its primary components are propane and butane, though it may also contain small amounts of propylene and butylene.