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What is the correct IUPAC name of the compound CH3CH=CHCH=CHCOOH?

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in Chemistry – Class 12 by (188k points)
What is the correct IUPAC name of the compound CH3CH=CHCH=CHCOOH?

(a) Hexenedioc acid

(b) Hexa-2,4-dienoic acid

(c) Penta-1,3-dienioc acid

(d) Pentenedioc acid

I have been asked this question by my school principal while I was bunking the class.

I want to ask this question from Nomenclature and Structure of Carboxyl Groups topic in section Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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The correct option is (b) Hexa-2,4-dienoic acid

To explain I would say: The compound consists of six carbon atoms including the carboxyl carbon thus, it is a derivative of hexanoic acid. The only substituents are two double bonds at the second and fourth carbon considering that the carboxyl carbon is the number one.

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