how to differentiate between IUPAC name and common name????

Asked by swetha | 17th Dec, 2013, 04:12: PM

Expert Answer:

1. Common name is just the name that we use in our regular life while IUPAC name is the name that follows the chemistry rules for naming a compound.

2. In IUPAC naming, the organic compounds are named after the parent hydrocarbon by using certain prefixes or suffixes to indicate the presence of functional group.

In common names, the name of the functional group is written as such.

For example:

CH3CH2Cl

Its IUPAC name is chloroethane

Common name is ethyl chloride

CH3OH

Its IUPAC name is ethanol

Common name is methyl alcohol

3. IUPAC name of a hydrocarbon is obtained by writing the position and name of alkyl group or any other substituent just before the name of the parent hydrocarbon.

For example:

CH3CH2CH2CH3

Its IUPAC name is butane

Common name is n-butane.

Answered by  | 18th Dec, 2013, 12:33: PM

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