What is the correct IUPAC name for the compound with the structure CH3-CH(CH3)-C

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Question: What is the correct IUPAC name for the compound with the structure CH3-CH(CH3)-CH2-COOH?

Options:

Correct Answer: 2-Methylbutanoic acid

Solution:

The longest carbon chain has four carbons, and the methyl group is on the second carbon, making it 2-Methylbutanoic acid.

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

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

Step 1: Identify the longest carbon chain in the compound. Count the number of carbon atoms in the chain.
Step 2: The longest chain has 4 carbon atoms, which is called butanoic acid.
Step 3: Look for any branches (methyl groups) attached to the main chain. In this case, there is a methyl group (CH3) on the second carbon.
Step 4: Since the methyl group is on the second carbon, we name it 2-Methyl.
Step 5: Combine the branch name with the main chain name. The full name is 2-Methylbutanoic acid.

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