In the following groups, $\mathop { - {\rm{OAC}}}\limits_{\rm{I}} - \mathop {{\rm{OMe}}}\limits_{{\rm{II}}} \mathop { - {\rm{OS}}{{\rm{O}}_2}{\rm{Me}}}\limits_{{\rm{III}}} \mathop { - {\rm{OS}}{{\rm{O}}_2}{\rm{C}}{{\rm{F}}_3}}\limits_{{\rm{IV}}} $ the order of leaving group ability is :

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NEET UG CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES

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In the following groups,

\mathop { - \mathrm{OAC}}\limits_\mathrm{I} - \mathop {\mathrm{OMe}}\limits_{\mathrm{II}} \mathop { - \mathrm{OS}{\mathrm{O}_2}\mathrm{Me}}\limits_{\mathrm{III}} \mathop { - \mathrm{OS}{\mathrm{O}_2}\mathrm{C}{\mathrm{F}_3}}\limits_{\mathrm{IV}}

the order of leaving group ability is :

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Correct option: B

IV > III > I > II

Option B (IV > III > I > II) is correct because the leaving group ability depends on the stability of the leaving group after departure, with stronger acids being better leaving groups.

NEET UG CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES

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