Question:
The IUPAC name for the hydrocarbon represented by
The IUPAC name for the hydrocarbon represented by
Show Hint
Always select the longest carbon chain for the parent name.
Updated On: Apr 16, 2026
- 3,3-diethylpentane
- 2-ethylpentane
- tetraethyl carbon
- neo-nonane
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
IUPAC nomenclature rules for alkanes: Identify the longest carbon chain and number it to give substituents the lowest possible numbers.
Step 2: Detailed Explanation:
The structure is of a 5-carbon chain (pentane) with two ethyl groups attached to the third carbon atom. The longest chain is pentane, and the substituents are two ethyl groups on carbon 3. The name is 3,3-diethylpentane. Options like 2-ethylpentane would imply a different structure (which is actually 3-methylhexane). Tetraethyl carbon (C(C\(_2\)H\(_5\))\(_4\)) would be 3,3-diethylpentane if you consider it, but that's not a standard name.
Step 3: Final Answer:
The correct IUPAC name is 3,3-diethylpentane, which corresponds to option (A).
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