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Odorous gas
Answer for the clue "Odorous gas ", 6 letters:
ketene
Word definitions for ketene in dictionaries
Wikipedia
Word definitions in Wikipedia
A ketene is an organic compound of the form R′R″C=C=O. The term is also used specifically to mean ethenone , the simplest ketene, where R′ and R″ are hydrogen atoms. Ketenes were first studied as a class by Hermann Staudinger .
Wiktionary
Word definitions in Wiktionary
n. 1 (context organic chemistry English) any of a class of unsaturated ketones, having a general formula R 1 R 2 C=C=O, that react as if they were inner acid anhydrides 2 (context organic compound English) the parent compound of this class, CH 2 =C=O, an ...