Which of the following is the correct IUPAC name for the compound with the struc

Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH(CH3)-COOH?

Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH(CH3)-COOH?

Correct Answer: 2-Methylbutanoic acid

Step 1: Identify the longest continuous chain of carbon atoms in the structure CH3-CH2-CH(CH3)-COOH. Count the number of carbons in this chain.
Step 2: The longest chain has 4 carbon atoms, which means it is a butanoic acid because 'but' indicates 4 carbons.
Step 3: Look for any branches (substituents) on the main chain. In this case, there is a methyl group (CH3) attached to the second carbon of the main chain.
Step 4: Since the methyl group is on the second carbon, we name it 2-Methyl.
Step 5: Combine the branch name with the name of the main chain. The full name is 2-Methylbutanoic acid.

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