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alkane-CnH2n+2 alkene-CnH2n alkyl-CnH2n+1 aldehyde-R-CHO where R is any alkyl group ketone-R-CO-R where R is any alkyl group cycloalkane-CnH2n. svetlana Â· 5 years ago.
An alkyne is a molecule made up entirely of carbon and hydrogen where on or more carbon atoms are connected by triple bonds. The general formula for an alkyne is CnH2n-2 where n is the number of carbon atoms in the molecule. Alkanes are named by adding the -yne suffix to the prefix associated with the number of carbon atoms present in the molecule. A number and dash before the name denotes the number of the carbon atom in the chain that begins the triple bond.