Which of the following is true about the foll | vedclass

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(D) Let us analyze each option:$A$. $-CCl_3$ is a strongly deactivating group due to the strong $-I$ effect of three chlorine atoms.$B$. $-CH_3-COO^-$

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$-OH_2^+$ deactivates the benzene ring by $-M$ effect

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(D) Let us analyze each option:$A$. $-CCl_3$ is a strongly deactivating group due to the strong $-I$ effect of three chlorine atoms.$B$. $-CH_3-COO^-$ (acetate ion) is an activating group because the oxygen atom with a negative charge can donate electron density into the ring via the $+M$ effect.$C$. $-CH_3$ (methyl group) is an activating group because it donates electron density to the benzene ring via the $+I$ effect and hyperconjugation.$D$. $-OH_2^+$ is a strongly deactivating group. While it has an oxygen atom,it carries a positive charge,making it a strong electron-withdrawing group via both $-I$ and $-M$ effects. Thus,it deactivates the ring.Therefore,option $D$ is the correct statement.

Which of the following is true about the following groups when attached to a benzene ring?

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