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benzene ring definition

benzene ring

a structural unit in the molecules of aromatic organic compounds, represented by a ring of six atoms of carbon with alternate double bonds between the carbon atoms: in the molecule of benzene six atoms of hydrogen are attached to the ring, one to each atom of carbon, but in derivatives of benzene one or more atoms of hydrogen are replaced by atoms of other elements or by groups of atoms
also called benzene nucleus

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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