Home Chemistry IUPAC Nomenclature IUPAC-Nomenclature of Alkene & Alkyne The correct IUPAC name of the given compound…
Chemistry IUPAC Nomenclature IUPAC-Nomenclature of Alkene & Alkyne Single Correct MCQ
Published on: August 12, 2026

The correct IUPAC name of the given compound is :

A
3–Chloro–1–fluoro–1–iodo–4–methoxybut–1–en–3–yne
B
4–Methoxy–2–chloro–1–fluoro–1–iodobutenyne
C
3–Chloro–4–fluoro–4–iodo–1–methoxybutenyne
D
2-Chloro-1-fluoro-1-iodo-4-methoxybut-1-en-3-yne

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Verified by Experts
The correct answer is:
D

2-Chloro-1-fluoro-1-iodo-4-methoxybut-1-en-3-yne

The correct numbering to the longest chain is given by

parent chain is of four carbon thus root word is butane do not have any priority order and considered as alkyl substituents while numbering. the correct IUPAC name is 2-Chloro-1-fluoro-1-iodo-4-methoxybut-1-en-3-yne

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