Functional groups are the specific groups that provide characteristic properties. The compounds are butanoic acid and methyl propanoate.
What are functional groups?
Functional groups are the active side atoms and molecules that confer the physical and chemical properties of the compound. In the first compound, the functional group is the carboxylic acid (COOH) and four carbon atoms hence, the compound is butanoic acid.
In the second compound, the functional group is an ester (RCOOR) and contains a methyl group and other three carbon atoms making the compound, methyl propanoate.
Therefore, the compounds are butanoic acid and methyl propanoate.
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