Chemistry - Nomenclature Question with Solution | TestHub

Aniline has $\mathrm{N}{\mathrm{H}}_2$ on ${\mathrm{C}}_1$. 2-Chloro puts $\mathrm{Cl}$ next to $\mathrm{N}{\mathrm{H}}_2$ and 4-nitro puts $\mathrm{N}{\mathrm{O}}_2$ para to $\mathrm{N}{\mathrm{H}}_2$. Only one structure has this pattern; the others have the two groups at different positions.