Which one of the following is the functional group of Methyl

Which one of the following is the functional group of Methyl butanoate?

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Ester

Ether

Carboxylic acid

Ketone

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UPSC Geoscientist – 2021

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Methyl butanoate is an organic compound that belongs to the class of esters. The name “butanoate” indicates that it is derived from butanoic acid, and “methyl” indicates the alkyl group attached to the oxygen atom (R’ in R-COO-R’). The structure of methyl butanoate is CH₃CH₂CH₂COO-CH₃. The characteristic functional group present in esters is the ester group (-COO-).

Methyl butanoate is an ester, identified by the presence of the -COO- functional group derived from a carboxylic acid and an alcohol.

Ethers have the functional group R-O-R’. Carboxylic acids have the functional group -COOH. Ketones have the functional group R-CO-R’, where the carbonyl group is located within the carbon chain.

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