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Which of the alkyl halides is least suit...

Which of the alkyl halides is least suitable for dehydrohalogenation ?

A

`RF`

B

`RCI`

C

`RBr`

D

`RI`

Text Solution

Verified by Experts

The correct Answer is:
A
The anoin lost(the leaving group) must be a very weak Bronsted base such as the halides `Cl^(-)`,`Br^(-)`,and `I^(-)` but not `F^(-)`. The weaker the base, the better is the leaving group. Another example of good leaving group is sulphonate ester, `RSO_(2)O^(-)`.
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