In the following group :
`-OAc(I),-OMe(II),-OSO_(2)(III),-OSO_(2)CF_(3)(IV)`
The order of leaving group ability is :

In the following groups: -O Ac(I),- OMe( II) -O SO_2 Me( III)-O SO_2 CF_3 ( IV) the order of leaving group ability is : IgtIIgtIIIgtIV IVgtIIIgtI.II IIIgtIIgtIgtIV IIgtIIIgtIVgtI

In the following groups: (I) -OAc , (II) -OMe , (III) -OSO_(2)Me , (IV) OSO_(2)CF_(3) the order of leaving group ability is-

In the following groups: (I) -OAc , (II) -OMe , (III) -OSO_(2)Me , (IV) OSO_(2)CF_(3) the order of leaving group ability is-

In the following groups: (I) -OAc , (II) -OMe , (III) -OSO_(2)Me , (IV) OSO_(2)CF_(3) the order of leaving group ability is-

The correct leaving group ability order is :