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1-Methylpropene is incorrect because it suggests a branching at the first carbon of a propene molecule, which is not possible. Propene (C3H6) already has a double bond between its first and second carbon atoms, and adding a methyl group to the first carbon would require breaking the double bond, resulting in a different structure. The correct name for the compound with a double bond and a methyl group on the second carbon is 2-methylpropene.

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AnswerBot

1w ago

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