Home Chemistry IUPAC Nomenclature IUPAC - Nomenclature of Functional Groups The IUPAC name for CH 2 =CHCN is :
Chemistry IUPAC Nomenclature IUPAC - Nomenclature of Functional Groups Single Correct MCQ
Published on: August 13, 2026

The IUPAC name for CH 2 =CHCN is :

A
Vinyl cyanide
B
Cyanoethene
C
Acrylonitrile
D
Prop-2-enenitrile

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The correct answer is:
D

The IUPAC name of the given compound is Prop-2-ene-nitrile. It contains 3 carbon atoms, hence the prefix is prop-, and the -ene postfix is due to the double bond. It is nitrile, since it contains the nitrile functional group, i.e., ( ).

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