Draw a structure for 7-oxoheptanoic acid.

• A.
• B.
• C.
• D.

Answer: (B)

Verified step by step guidance

1. Identify the parent chain: The name '7-oxoheptanoic acid' indicates a heptanoic acid, which means the parent chain is a 7-carbon carboxylic acid.
2. Locate the carboxylic acid group: The '-oic acid' suffix tells us there is a carboxylic acid group (COOH) at the end of the chain.
3. Identify the position of the ketone: The '7-oxo' prefix indicates a ketone group (C=O) is present at the 7th carbon of the chain.
4. Draw the carbon chain: Start by drawing a straight chain of 7 carbon atoms.
5. Add functional groups: Attach a carboxylic acid group (COOH) to the first carbon and a ketone group (C=O) to the 7th carbon of the chain.