Chemistry - Nomenclature Question with Solution | TestHub
Identify correct structure & IUPAC name match
Options:(select one or more)
Answer:
Solution:
A. 3, 6-Dimethylcyclohexene
The ring is numbered to give the double bond carbons the lowest numbers (C1 and C2), and the substituents (methyl groups) the next lowest possible locants. The correct numbering results in methyl groups at positions 3 and 6, matching the provided name.
B. 1, 6-Dimethylcyclohexene
The double bond carbons are numbered C1 and C2. The methyl group attached directly to a double bond carbon is at C1, and the other is at C6. The name correctly identifies these positions.
C. 6, 6-Dimethylcyclohexene
The double bond carbons are C1 and C2. Both methyl groups are on the same carbon, which can be numbered C6 (or C3 depending on the direction). The name correctly identifies the 6, 6 positions.
D. 1, 5-Dimethylcyclohexene
The double bond carbons are C1 and C2. One methyl group is at C1, and the other is at C5. The name correctly identifies these positions.