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JEE Main levelSingle correct optionDifficulty 2 of 3nm087

A benzene ring carries a -COOH group and a -COOCH $_{3}$ group in the 1,4 (para) positions. Its IUPAC name is:

A4-(methoxycarbonyl)benzoic acid
B4-(methoxycarbonyl)phenol
Cmethyl 4-carboxybenzoate
D4-methoxybenzoic acid

Answer: A

The carboxylic acid is senior to the ester, so the compound is named as a benzoic acid. The ester group is then expressed as the prefix methoxycarbonyl, in position 4. The name is 4-(methoxycarbonyl)benzoic acid.

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