The correct arrangement for the decreasing or | vedclass

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(A) Electrophilic aromatic substitution is facilitated by electron-donating groups $(EDG)$ and inhibited by electron-withdrawing groups $(EWG)$.$1$. T

Vedclass · Accepted Answer

$III > I > II > IV$

Vedclass · Answer

(A) Electrophilic aromatic substitution is facilitated by electron-donating groups $(EDG)$ and inhibited by electron-withdrawing groups $(EWG)$.$1$. The $-OCH_3$ group in compound $(III)$ is a strong electron-donating group due to the $+M$ effect,which significantly increases the electron density on the benzene ring.$2$. The $-CH_3$ group in compound $(I)$ is an electron-donating group due to the $+H$ (hyperconjugation) and $+I$ effects.$3$. Compound $(II)$ is benzene,which serves as the reference.$4$. The $-CF_3$ group in compound $(IV)$ is a strong electron-withdrawing group due to the $-I$ effect,which decreases the electron density on the benzene ring.Therefore,the reactivity order towards electrophilic substitution is: $(III) > (I) > (II) > (IV)$.

The correct arrangement for the decreasing order of electrophilic substitution for the above compounds is:

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