Identify the number of carbon atoms in the compound.

If the compound contains a functional group, it is indicated in the name of the compound with either a prefix or a suffix.

The functional group present in the compound is indicated as suffix by removing the e at the end and adding the appropriate suffix as discussed in the table. For example, a two-carbon chain with an Aldehyde group would be named as: - Ethane – ‘e’ = Ethan + ‘one’ = Ethanone.

In case of unsaturated carbon chain the final ‘ane’ in the name of the carbon chain is substituted by ‘ene’ for double bond or ‘yne’ for triple bond.

For example,

• Here number of carbon atoms = 3 i.e. so the term to be used is
• The functional group added is Chlorine so the suffix to be used is chloro.
• Position of chloro is second carbon so the IUPAC name of the given compound is 2-chloropropane.