Among the following compounds,the order of de | vedclass

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(A) The reactivity towards electrophilic substitution $(ESR)$ depends on the electron density in the benzene ring. Electron donating groups $(EDG)$ in

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$III > I > II > IV$

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(A) The reactivity towards electrophilic substitution $(ESR)$ depends on the electron density in the benzene ring. Electron donating groups $(EDG)$ increase the electron density and thus increase reactivity,while electron withdrawing groups $(EWG)$ decrease the electron density and decrease reactivity. - $(III)$ Anisole $(-OCH_3)$: The $-OCH_3$ group is a strong $EDG$ due to its $+M$ effect. - $(I)$ Toluene $(-CH_3)$: The $-CH_3$ group is a weak $EDG$ due to $+I$ and hyperconjugation effects. - $(II)$ Benzene: This is the reference compound with no substituents. - $(IV)$ Trifluoromethylbenzene $(-CF_3)$: The $-CF_3$ group is a strong $EWG$ due to its $-I$ effect. Therefore,the order of reactivity is: $(III) > (I) > (II) > (IV)$.

Among the following compounds,the order of decreasing reactivity towards electrophilic substitution is:

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