Question

According to `IUPAC` convention, the systematic name of the compound given below is

A. `4-(4-`Bromocyclohexyl`)-1-(3-`chlorocyclohexyl`)-2-`fluorocyclohexane
B. `5-(4-`Bromocyclohexyl`)-2-(3-`chlorocyclohexyl`)-1-`fluorocyclohexane
C. `1-(3-`Chlorocyclohexyl`)-4-(4-`bromocyclohexyl`)-2-`fluorocyclohexane
D. `1-(4-`Bromocyclohexyl`)-4-(3-`chlorocyclohexyl`)-3-`fluorocyclohexane

Answer 1

Correct Answer - a
Central ring has maximum of three locants, hence it is the parent ring. The lowest number series is `1,2` and `4` as

There is locant in the side rings, hence secondary numbering of side rings are also done.