1.

The decreasing leaving group order of the following is: i. `F_(3)CSO_(3)^(o-)`, ii. `Cl_(3)C-COO^(o-)` iii. `PhSO_(3)^(o-)`, iv. `MeSO_(3)^(o-)`A. `(i) gt (ii) gt (iii) gt (iv)`B. `(iv) gt (iii) gt (ii) gt (i)`C. `(iiii) gt (i) gt (ii) gt (iv)`D. `(i) gt (iii) gt (ii) gt (i)`

Answer» Correct Answer - `d`
Nucelphilicity and leaving group are reversed.
Fugavity: `(i) gt (iii) gt (Iv) gt (ii)`


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