For $(i) \, I^{-}, \, (ii) \, Cl^{-}, \, (iii) \, Br^{-}$,the increasing order of nucleophilicity would be
- A$Cl^{-} < Br^{-} < I^{-}$
- B$I^{-} < Cl^{-} < Br^{-}$
- C$Br^{-} < Cl^{-} < I^{-}$
- D$I^{-} < Br^{-} < Cl^{-}$
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