Meta-directing groups among the following are | vedclass

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(A) Meta-directing groups are electron-withdrawing groups (EWGs) that decrease the electron density on the benzene ring through $-M$ or $-I$ effects.$

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$a, b, d$

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(A) Meta-directing groups are electron-withdrawing groups (EWGs) that decrease the electron density on the benzene ring through $-M$ or $-I$ effects.$(a) -CN$ is meta-directing.$(b) -COR$ is meta-directing.$(c) -NHCOR$ is ortho/para-directing due to the $+M$ effect of the nitrogen atom.$(d) -SO_3H$ is meta-directing.$(e) -OCH_3$ is ortho/para-directing due to the $+M$ effect of the oxygen atom.Therefore,the meta-directing groups are $a, b,$ and $d$.

Meta-directing groups among the following are: $(a) -CN$,$(b) -COR$,$(c) -NHCOR$,$(d) -SO_3H$,$(e) -OCH_3$

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