Which of the following names are correct for the compound?

3-Keto butan-1-oic acid

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4-Carboxy butan-2-one

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3-Oxo butan-1-oic acid

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3-Carboxy acetone

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Solution

The correct options are
A 3-Keto butan-1-oic acid
C 3-Oxo butan-1-oic acid
Option (A) and (C) are correct.
The compound has a parent chain with four carbon atoms and a ketone group on the second carbon atom and 1 position has a carboxylic group. So, the compound can be named as 3-Keto butan-1-oic acid. For option (C), the parent chain has four carbon atoms and the 3 position carbon has a oxo group and 1 position has a carboxylic group. So, the compound can be named as 3-Oxo butan-1-oic acid.

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