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Answer for the clue "A flammable gas obtained by cracking petroleum ", 7 letters:
propene

Alternative clues for the word propene

Word definitions for propene in dictionaries

Wiktionary Word definitions in Wiktionary
n. (context organic compound English) The official IUPAC name for the organic chemical compound propylene. An alkene which is a colorless gaseous (at room temperature and pressure) hydrocarbon with the chemical formula C 3 H 6 .

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Propylene \Pro"pyl*ene\, n. [Cf. F. propyl[`e]ne.] (Chem.) A colorless gaseous hydrocarbon ( C3H6 ) of the ethylene series, having a garlic odor. It occurs in coal gas, and is produced artificially in various ways. Called also propene .

WordNet Word definitions in WordNet
n. a flammable gas obtained by cracking petroleum; used in organic synthesis [syn: propylene ]

Wikipedia Word definitions in Wikipedia
Propene , also known as propylene or methyl ethylene , is an unsaturated organic compound having the chemical formula C H . It has one double bond , and is the second simplest member of the alkene class of hydrocarbons .