Question

66. The correct I.U.P.A.C numbering in compound is​

Answer 1

Answer: Option C) is correct

The name of the compound if we follow option 3

3-ethyl-2-methylcyclohexene

Explanation:

Multiple bonds(double/triple) have a higher priority than substituents in IUPAC nomenclature.

The Option 3 is chosen because of the Lowest Locant Rule and the lowest possible numbering is followed in the Option C)

Also there is the point that numbering of the multiple bonds should be consecutive. Following this the alkene carbons must get numbers 1 and 2.