The highest yield of m- product is possible b | vedclass

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(D) In electrophilic aromatic substitution,the directing effect of a substituent depends on its electronic nature.Groups that are electron-withdrawing

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$C_6H_5C(COOC_2H_5)_3$

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(D) In electrophilic aromatic substitution,the directing effect of a substituent depends on its electronic nature.Groups that are electron-withdrawing by the inductive effect $(-I)$ and have no lone pairs to donate via resonance are generally meta-directing.In $C_6H_5C(COOC_2H_5)_3$,the carbon atom attached to the benzene ring is bonded to three electron-withdrawing ester groups $(-COOC_2H_5)$.This creates a strong electron-withdrawing effect on the ring,making the meta-position relatively more reactive than the ortho and para positions towards electrophilic attack.As the number of electron-withdrawing groups increases,the meta-directing influence becomes more pronounced,leading to the highest yield of the $m-$ product.

The highest yield of $m-$ product is possible by the electrophilic substitution of the following:

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