Chemistry-IUPAC Nomenclature
NEET Chemistry IUPAC Nomenclature MCQ Question
Type: MCQ-numerical-Hard-Class 11
What is the IUPAC name of a compound with a principal functional group of carboxylic acid, a keto group at carbon 3, and a total of 7 carbon atoms in the longest chain?
A
3-oxobutanoic acid
B
3-oxoheptanoic acid
C
2-oxopentanoic acid
D
3-oxopentanoic acid
Correct Answer
Option B
Detailed Explanation
The longest chain includes the principal functional group, carboxylic acid, and has 7 carbon atoms, making the parent hydrocarbon heptane. The keto group at carbon 3 is indicated by '3-oxo'. Therefore, the correct name is 3-oxoheptanoic acid.
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