The correct IUPAC name of the given structure is :
A
Hex-3-en-1-oic acid
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B
Hex-4-en-6-oic acid
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C
3-Propylbut-3-en-1-oic acid
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D
3-methylidenehexan-1-oic acid
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Solution
The correct option is C 3-Propylbut-3-en-1-oic acid Longest Chain with Maximum Groups: The longest possible chain is selected with maximum functional group and maximum unsaturation. The priority for lower number (or locant) will be given to functional group.
The correct IUPAC name of the sturucture is 3-Propylbut-3-en-1-oic acid
Theory : When there is secondary amine and carboxylic acid groups present in the structure than naming is done as: