NTA Abhyas JEE Main2020ChemistryGeneral Organic ChemistryPractice
The correct order of the ability of the leaving group is
Options
- A− OCOC 2 H 5 > − OC 2 H 5 > − OSO 2 Et  > − OSO 2 CF 3
- B− OC 2 H 5 > − OCOC 2 H 5 > − OSO 2 CF 3 > − OSO 2 Me
- C− OSO 2 CF 3 > − OSO 2 Me  > − OCOC 2 H 5 > − OC 2 H 5
- D− OCOC 2 H 5 > − OSO 3 CF 3 > − OC 2 H 5 > − OSO 2 Me
Correct answer
C. − OSO 2 CF 3 > − OSO 2 Me  > − OCOC 2 H 5 > − OC 2 H 5
Step-by-step solution
Weaker bases are better leaving group.