What is the IUPAC name for the following compound?
A)3-Ethyl-1-methylcyclohexane
B)1-Ethyl-3-methylcyclohexane
C)1-Ethyl-3-methylhexane
D)3-Ethyl-1-methylhexane

Question

What is the IUPAC name for the following compound? 
A)3-Ethyl-1-methylcyclohexane 
B)1-Ethyl-3-methylcyclohexane 
C)1-Ethyl-3-methylhexane 
D)3-Ethyl-1-methylhexane

Quizplus · Accepted Answer

The parent chain is a cyclohexane with a methyl group at position 1 and an ethyl group at position 3. Since both groups are substituents and not part of the main chain, they should be listed alphabetically. Therefore, the correct name is 1-ethyl-3-methylcyclohexane. Option A and D are incorrect because they refer to a straight chain alkane, rather than a cyclohexane. Option C is incorrect because it does not specify that the compound is a cyclohexane.

What Is the IUPAC Name for the Following Compound