The IUPAC name of the following compound is:
Correct answer: A. 1-Ethyl-2, 4-dimethlycyclohexane
- A. 1-Ethyl-2, 4-dimethlycyclohexane
- B. 2-Ethyl-1,4-dimethylcyclohexene
- C. 2-Ethyl-1, 1-dimethylcyclohexane
- D. 4-Ethyl-1, 2-dimethylcyclohexane
Explanation
The IUPAC name of the compound is 1-ethyl-2,4-dimethylcyclohexane. The parent compound is cyclohexane. The carbon to which ethyl is attached is considered carbon 1 according to alphabetical order. The two methyl groups are on carbon 2 and 4 respectively.
This question appeared on the NUMS 2016 paper, which you can sit online with every answer explained.
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About Alkanes
Alkanes are saturated hydrocarbons containing only carbon-carbon and carbon-hydrogen single bonds, with the general formula CnH2n+2 for open chains. Their structure, isomerism, IUPAC nomenclature, physical properties, combustion, free-radical halogenation and conformations are covered, including the difference between substitution in alkanes and addition in unsaturated hydrocarbons.
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