Question

Vinyl and aryl halides do not ​undergo $S_{N}1$ and $S_{N}2$ reaction. Which of the following is the correct reason behind this ?

• A. Unstable Aryl cation​
• B. $\pi -e^{-}$ cloud of haloarenes​
• C. Partial double bond character of $C-X$ bond​
• D. All of the above

Answer 1

The correct option is D All of the above

Because of unstable aryl cation, $\pi -e^{-}$ cloud of haloarenes​, partial double bond character of $C-X$ bond​, vinyl and aryl halides do not undergo $S_{N}1$ and $S_{N}2$ reaction. Therefore, the correct answer is option (d).