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Which of the following alkyl halides wil...

Which of the following alkyl halides will undergo `S_N1` reaction most readily ?

A

`(CH_3)_3C-F`

B

`(CH_3)_3C-Cl`

C

`(CH_3)_3C-Br`

D

`(CH_3)_3C-I`

Text Solution

Verified by Experts

The correct Answer is:
D
All the given compounds are tertiary alkyl halides but the bond formed between carbon and iodine (C - I) bond is the weakest bond due to large difference in the size of carbon and iodine. So, `(CH_3)_3C-I` gives `S_N^1` reaction most readily. In other words. Iodine is a better leaving group
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