Which of the following is an incorrect IUPAC | vedclass

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Question

(C) Let us analyze each option:$A$: $CH_3CH_2CH_2COOCH_2CH_3$ is an ester. The alkyl group attached to oxygen is ethyl,and the acid part is butanoate.

Vedclass · Accepted Answer

$CH_3CH(OH)CH(CH_3)CH_3$ ($2$-Methyl$-3-$butanol)

Vedclass · Answer

(C) Let us analyze each option:$A$: $CH_3CH_2CH_2COOCH_2CH_3$ is an ester. The alkyl group attached to oxygen is ethyl,and the acid part is butanoate. The name $Ethyl \ 	ext{butanoate}$ is correct.$B$: $CH_3CH(CH_3)CH_2CHO$. The longest chain has $4$ carbons. The methyl group is at position $3$. The name $3-	ext{Methylbutanal}$ is correct.$C$: $CH_3CH(OH)CH(CH_3)CH_3$. Numbering should start from the end closer to the functional group $(-OH)$. Numbering from left: $CH_3(1)-CH(OH)(2)-CH(CH_3)(3)-CH_3(4)$. The correct name is $3-	ext{Methylbutan-2-ol}$. The given name $2-	ext{Methyl-3-butanol}$ is incorrect.$D$: $CH_3CH(CH_3)COCH_2CH_3$. Numbering from left: $CH_3(1)-CH(CH_3)(2)-CO(3)-CH_2(4)-CH_3(5)$. The correct name is $2-	ext{Methylpentan-3-one}$. The given name $2-	ext{Methyl-3-pentanone}$ is correct.

Which of the following is an incorrect $IUPAC$ name?

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