Question

The decreasing leaving group order of the following is:
i. `F^(o-)`, ii. `Cl^(o-)`, iii. `Br^(o-)`, Iv. `I^(o-)`
A. `(i) gt (ii) gt (iii) gt (iv)`
B. `(iv) gt (iii) gt (ii) gt (i)`
C. `(ii) gt (i) gt (iii) gt (iv)`
D. `(ii) gt (i) gt (iv) gt (iii)`

Answer 1

Correct Answer - `b`
Weaker the base or stronger the acid, stronger is the leaving group.
`I^(o-) gt Br^(o-) gt Cl^(o-) gt F^(o-)`