Q. 44.5( 13 Votes )

What are primary and secondary suffixes as applied to IUPAC nomenclature?

Answer :

In IUPAC nomenclature, the following subdivision is followed for naming the compounds.




Primary suffixes are used to indicate the degree of unsaturation (i.e., presence of double or triple bonds) in a carbon compound.


e.g.: -ane (for alkanes), -ene (for alkenes), -yne (for alkynes)


Secondary suffixes are those suffixes which describe the main functional group of the compound. They are added after the primary suffix.


e.g.: -one (for ketones), -oic acid (for carboxylic acids)


Example:



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