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The IUPAC nomenclature is the standardized official naming rule of organic compounds. Opposed to that, common names are older names for the compounds, which are not official, but some are frequently used. There is no explicit rule for common names, so one must just get used to the frequently used ones.
|No. of Carbon||Prefix|
Functional groups are those atoms or molecules other than carbon and hydrogen in an organic compound. There are a large number of functional groups in chemistry and it is very important to know all of them. Also, you must be able to name compounds containing one or multiple functional groups. Given below is a list of commonly used functional groups along with formula, prefixes, suffixes, and examples.
|Class of compounds||Functional group||IUPAC Group Prefix||IUPAC Group Suffix||Examples|
|Aldehydes||-CHO||Formyl- or oxo-||-carbaldehyde or -al||ethanal|