Concept:IUPAC naming requires identifying the longest continuous carbon chain, numbering it to give the lowest locants to substituents, and listing substituents alphabetically.
Solution:- Step 1: Identify the longest chain.
The longest continuous horizontal chain consists of 5 carbon atoms: \( CH_3-CH_2-C-CH_2-CH_3 \). A 5-carbon chain is a pentane. - Step 2: Number the chain.
Numbering from either the left or the right places the central carbon at position 3. - Step 3: Identify substituents.
On Carbon 3, there is a chlorine atom (chloro) and a methyl group (methyl). - Step 4: Assemble alphabetically.
"Chloro" comes before "methyl". Both are at position 3. - Therefore, the full IUPAC name is 3-Chloro-3-methylpentane.
Why other options are incorrect:- Option C: Identifying the chain as "butane" means a 4-carbon chain was incorrectly selected instead of the longest 5-carbon chain.
- Option B: Hexane implies a 6-carbon continuous chain, which does not exist in this molecule.
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