Question

The IUPAC name of the compound is :-

• A. 2, 3-Dimethylcyclohex-1-ene
• B. 1, 2-Dimethylcyclohex-2-ene
• C. 1, 6-Dimethylcyclohex-1-ene
• D. None of the above

Answer 1

The correct option is C

1, 6-Dimethylcyclohex-1-ene

Here,

The parent chain is cyclic and has 6 carbons in it.

Therefore,

Word Root $\Rightarrow$ hex

Prefix$\Rightarrow$ Cyclo

Now, to find out the positions of methyl groups, There are two options if you look at it.

But we cannot use (I) because if we open the cyclic compound, the double bond will be on 1 and 6.