Which of the following functional groups does | vedclass

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(A) The functional groups are analyzed as follows:$1$. The hydroxyl group $(-OH)$ consists of an oxygen atom bonded to a hydrogen atom via a single co

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$-OH$

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(A) The functional groups are analyzed as follows:$1$. The hydroxyl group $(-OH)$ consists of an oxygen atom bonded to a hydrogen atom via a single covalent bond. It does not contain any double bonds.$2$. The carbonyl group $(>C=O)$ contains a carbon atom double-bonded to an oxygen atom.$3$. The carboxyl group $(-COOH)$ contains a carbonyl group $(C=O)$ and a hydroxyl group $(-OH)$,thus it possesses a double bond.$4$. The aldehyde group $(-CHO)$ contains a carbon atom double-bonded to an oxygen atom $(C=O)$.Therefore,the hydroxyl group $(-OH)$ is the only one among the options that does not possess a double bond.

Which of the following functional groups does not possess a double bond?

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