Chemistry-IUPAC Nomenclature
NEET Chemistry IUPAC Nomenclature MCQ Question
Type: MCQ-numerical-Medium-Class 11
What is the IUPAC name of a compound with a longest carbon chain of 6 carbon atoms, having a keto group at carbon 3 and a carboxylic acid group as the principal functional group?
A
3-oxocyclohexanoic acid
B
3-oxobutanoic acid
C
3-oxohexanoic acid
D
3-oxopentanoic acid
Correct Answer
Option C
Detailed Explanation
The compound has a principal carboxylic acid functional group, which means the parent chain will be suffixed with 'oic acid.' The longest chain including this group has 6 carbon atoms, naming the hydrocarbon as hexane. The keto group at carbon 3 is indicated as 'oxo,' resulting in the name 3-oxohexanoic acid.
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