IUPAC and NomenclaturemediumMCQ SINGLE

When naming polyenes (compounds with multiple double bonds), the alphabet 'a' is appended to the worIUPAC and Nomenclature Chemistry Question

Question

When naming polyenes (compounds with multiple double bonds), the alphabet 'a' is appended to the word root. Which of the following is the correct IUPAC name for $CH_2=CH-CH=CH_2$?

Answer: C

💡 Solution & Explanation

The parent chain has 4 carbons with two double bonds. The word root 'But' becomes 'Buta' when followed by the consonant 'd' in 'diene'. The double bonds are at C1 and C3. Thus, Buta-1,3-diene.

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