Question

fill in the missing atoms or groups to complete the structure of 2 - chloro - 3 - methylbutanoic acid. provide your answer below:

Explanation:

Step1: Analyze the name

The parent chain is butanoic acid (4 - carbon chain with a -COOH group). The suffix -oic acid indicates the presence of a carboxyl group (\( -COOH\)). The numbering starts from the carboxyl - containing carbon.

Step2: Place substituents

• At position 2, there is a chloro (\( -Cl\)) group.
• At position 3, there is a methyl (\( -CH_3\)) group.
• The carboxyl group (\( -COOH\)) has the structure \( -C(=O)-OH\).

Answer:

From left - to - right and top - to - bottom in the boxes: \( -Cl\), \( -CH_3\), \( =O\), \( -OH\)