Which of the following compounds is a functional group isomer of C2H5OH, ethanol (ethyl alcohol)?
Correct answer: D. dimethyl ether, (CH3)2O
- A. ethanal, CH3CHO
- B. acetic acid, CH3COOH
- C. diethyl ether, (C2H5)2O
- D. dimethyl ether, (CH3)2O
Explanation
Dimethyl ether and ethyl alcohol have same molecular formula but different functional groups and hence they are the functional isomers of each other.
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About Fundamental Principles of Organic Chemistry
Organic chemistry begins with carbon compounds classified by carbon skeleton, saturation and functional group. Work includes identifying groups such as hydroxyl, carbonyl, carboxyl and amino, applying basic nomenclature, and distinguishing structural, geometric and optical isomers, where the same molecular formula does not necessarily mean the same structure or properties.
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