Name the compound below:Group of answer choicesmethylcyclohexaneethylmethylcyclohexaneethylhexane1-ethyl-2-methylcyclohexane

To name the compound, we will follow the IUPAC nomenclature rules for organic chemistry.

1. Identify the longest carbon chain: The base of the name is determined by the longest continuous chain of carbon atoms. In this case, we recognize that the compound is a cycloalkane because it contains a cyclohexane ring.

2. Identify substituents: We need to identify any alkyl groups attached to the cyclohexane ring. From the options provided, we have ethyl and methyl groups as potential substituents.

3. Assign locants: When naming cycloalkanes with substituents, we number the carbon atoms in the ring in a way that gives the substituents the lowest possible numbers.

4. Determine the correct name: Combining these parts gives the appropriate IUPAC name.

Given your choices:

• methylcyclohexane: This name would imply there's only a methyl group attached to the cyclohexane.
• ethylmethylcyclohexane: This is not a valid IUPAC name as it does not provide the positions of the substituents.
• ethylhexane: This name doesn't align with the structure described since it doesn't indicate a cyclic structure.
• 1-ethyl-2-methylcyclohexane: This name correctly identifies an ethyl and a methyl substituent on the cyclohexane ring.

Final Answer

The correct name for the compound is 1-ethyl-2-methylcyclohexane.