Description : L.P.G. is mostly liquefied (1) hydrogen (2) Oxygen (3) butane (4) methane
Last Answer : (3) butane Explanation: Liquefied petroleum gas or liquid petroleum gas (LPG) is mostly propane (C3H8), or butane (C4H10). They are most commonly mixtures of these two hydrocarbon gases that ... northern hemisphere winter, the mixes contain more propane, while in summer, they contain more butane.