An atom or a group of atoms or a double bond or triple bond whose presence imparts specific properties to organic compounds is called a functional group, because they are the chemically functional parts of molecules. Which of the following is functional group of carboxylic acid?
Correct answer: A. -COOH
- A. -COOH
- B. -OH
- C. -CONH2
- D. -CHO
Explanation
The functional group that defines a carboxylic acid is the carboxyl group. This group consists of a carbonyl group (C=O) and a hydroxyl group (-OH) bonded to the same carbon atom, and it is represented as -COOH.
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About Functional Groups
Functional groups are specific atoms or atom groups that determine the characteristic reactions and properties of organic compounds. Coverage includes alkenes, alkynes, halo, hydroxyl, ether, carbonyl, carboxyl, ester, amino and nitro groups, together with their structures, nomenclature and related homologous series.
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