The correct order of reactivity towards elect | vedclass

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Question

(C) Electrophilic substitution reactivity depends on the electron density of the aromatic ring.Electron donating groups $(EDG)$ increase electron dens

Vedclass · Accepted Answer

$b > a > c > d$

Vedclass · Answer

(C) Electrophilic substitution reactivity depends on the electron density of the aromatic ring.Electron donating groups $(EDG)$ increase electron density,while electron withdrawing groups $(EWG)$ decrease it.$(a)$ Toluene $(-CH_3)$: $+I$ and hyperconjugation effect (activating).$(b)$ Anisole $(-OCH_3)$: $+M$ effect is very strong (strongly activating).$(c)$ Chlorobenzene $(-Cl)$: $-I$ effect dominates over $+M$ effect (deactivating).$(d)$ Benzaldehyde $(-CHO)$: $-M$ and $-I$ effects (strongly deactivating).The order of activation is: Anisole $(b)$ > Toluene $(a)$ > Chlorobenzene $(c)$ > Benzaldehyde $(d)$.Therefore,the correct order is $b > a > c > d$.

The correct order of reactivity towards electrophilic substitution reaction is:

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