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Identify the correct IUPAC name for the given compound.

1. 3-Ethyl-2-methylpentane
2. 2-Methyl-2-butene
3. 4-Hydroxy-2-methylpent-2-en-1-al
4. 2-Methyl-2-pentene

Correct answer: 3-Ethyl-2-methylpentane

Solution

The correct IUPAC name is 3-Ethyl-2-methylpentane because it follows the rules of IUPAC nomenclature, where the longest carbon chain is identified, and substituents are named and numbered to give the lowest possible locants.

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