Which IUPAC name is incorrectly matched? | vedclass

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(C) The correct $IUPAC$ name for $CH_3-CH=CH-C \equiv CH$ is $Pent-3-en-1-yne$. According to $IUPAC$ rules,when both double and triple bonds are prese

Vedclass · Accepted Answer

$CH_3-CH=CH-C \equiv CH 	o 	ext{Pent-2-en-4-yne}$

Vedclass · Answer

(C) The correct $IUPAC$ name for $CH_3-CH=CH-C \equiv CH$ is $Pent-3-en-1-yne$. According to $IUPAC$ rules,when both double and triple bonds are present,numbering starts from the end that gives the lower locant to the multiple bonds. If the locants are the same from both ends,the double bond is given priority for the lower number. In this case,numbering from the right gives the double bond position $3$ and the triple bond position $1$ ($1,3$-combination),whereas numbering from the left gives $2$ and $4$ ($2,4$-combination). Therefore,$Pent-3-en-1-yne$ is the correct name,making option $C$ the incorrectly matched one.

Which $IUPAC$ name is incorrectly matched?

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