Chemistry-IUPAC Nomenclature
NEET Chemistry IUPAC Nomenclature MCQ Question
Type: MCQ-numerical-Hard-Class 11
What is the IUPAC name for a compound with a carboxylic acid group and a keto group located at the third carbon of a six-carbon parent chain?
A
3-oxohexanoic acid
B
3-ketohexanoic acid
C
hexanoic acid-3-one
D
3-oxobutanoic acid
Correct Answer
Option A
Detailed Explanation
The principal functional group, carboxylic acid, dictates the suffix '-oic acid'. For a keto group on the third carbon, the prefix '3-oxo' is used, resulting in '3-oxohexanoic acid'.
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