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

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

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Which of the following is the best leaving group?

A) F^-

B) CI^-

C) I^-

D) Br^-

E) H₂N^-

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.

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