The correct order of reactivity towards the electrophilic substitution of the compounds anisole (I), benzene (II) and nitrobenzene (III) is :-

Options

A. `I gt II gt III`
B. `III gt II gt I`
C. `II gt III gt I`
D. `I lt II gt III`

Answer

A

Explanation

In aniline `-NH_(2)` group is attached with benzene ring which shows +M effect. So it activates the benzene ring. Hence, rate of electrophilic substitution is increased due to increase in the electron density at ortho and para positions. In case of nitrobenzene, `-NO_(2)` deactivates the benzene ring, so in nitrobenzene rate of electrophilic substitution is lower than benzene. Hence, order of electrophilic substitution reaction is,