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Question

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:





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