Below you can find the Liquefied petroleum gas is usually butane this gas or a mixture of both Jeopardy Words Answer. The answer to Liquefied petroleum gas is usually butane this gas or a mixture of both has 7 letters. This clue belongs to the Science category and is part of Jeopardy Word Level 1468. If you scroll near the bottom you will find other clues and answers part of level 1468