Problem: Which of the following is the best leaving group? A) F- B) CI- C) I- D) Br- E) H2N-

FREE Expert Solution

We use factors affecting acidity to determine which leaving groups will be most stable after gaining a lone pair.


Recall that the element effect consists of two trends:


In this case, -NH2 will be considered as the worst among the group since the other LGs are smaller

View Complete Written Solution
Problem Details

Which of the following is the best leaving group? 

A) F- 

B) CI- 

C) I- 

D) Br- 

E) H2N-

Learn this topic by watchingGood Leaving Groups Concept Videos
All Organic Chemistry Practice Problems Good Leaving Groups Practice Problems
Q. Rank the following leaving groups according to their leaving group ability. 
Q.Rank in order of leaving group ability (1 = best leaving group, 4 = worst leaving group).
Q.The following reaction will not occur. Explain why the reaction below will fail. 
See all problems in Good Leaving Groups

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Good Leaving Groups concept. You can view video lessons to learn Good Leaving Groups. Or if you need more Good Leaving Groups practice, you can also practice Good Leaving Groups practice problems.