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QuestionChemistry

# Provide the correct IUPAC name for the compound shown here ## cis- 1 -ethyl- 2 -ethene ### Incorrect, 1 attempt remaining The general format for the IUPAC name of a hydrocarbon is: \text{[prefix/substituent] + [parent] + [functional group suffix]} Substituents are listed in alphabetical order.
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Step 1:
I'll solve this step-by-step to determine the correct IUPAC name for the given organic compound.

Step 2:
: Identify the Parent Chain

- The longest continuous carbon chain contains 6 carbons - This means the parent chain is a hexene (6 -carbon alkene) - There's a double bond, so it will be named as a hex- 2 -ene

Step 3:
: Locate the Double Bond

- This determines the base name as $$\text{hex-2-ene}
- The double bond is between the 2nd and 3rd carbons

Step 4:
: Identify Substituents

- There are two methyl groups attached to the main chain - One methyl group is on the 3rd carbon - Another methyl group is on the 4th carbon

Step 5:
: Number the Chain

- Number the chain to give the lowest possible numbers to substituents - In this case, the substituents will be at positions 3 and 4

Step 6:
: Name the Substituents

- The substituents are methyl groups - They will be listed alphabetically before the parent name

Step 7:
: Combine the Name

- The correct IUPAC name is: $$\text{3,4-dimethylhex-2-ene}
- Combine the substituent locations and names with the parent chain name

Final Answer

\text{3,4 -dimethylhex- 2 -ene}