1.

The decresing nuclephilic 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-)

Answer»

`(i) gt (II) gt (III) gt (IV)`
`(iv) gt (iii) gt (ii) gt (i)`
`(ii) gt (iv) gt (iii) gt (i)`
`(iv) gt (ii) gt (i) gt (iii)`

Solution :Same nucleophilc CENTRE, basically and nucelphilicity are same:
Nucleophilicity:
`Cl_(3)CCOO^(o-) gt MeSO_(3)^(o-) gt PhSO_(3)^(o-) gt F_(3)CSO_(3_^(o-)`


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