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Nucleophilic Aromatic substitution `(SN_(Ar))`:
A substituted benzene derivative containing `- NO_(2)` and `Cl` group at `p-`position is subjected to `Nu-` substitution
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Match the column I and II
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`{:(,"Column (I)",,"Column (II)",),(,X = "halogen",,"relative reactivity toward" (SN_(Ar)),),((a),-F,(p),312,),((b),-Cl,(q),1,),((c),-Br,(r),0.8,),((d),-I,(s),0.6,):}`

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Correct Answer - A-a-p, b-q, c-r, d-s
`rArr` Mesenhemier complex is more stable by stron `-I` group.

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