Question

Assertion (A) $S _{ N } 1$ mechanism is ruled out in case of haloarene.
Reason (R) Phenyl cation is formed as a result of self ionisation which is not stabilised by resonance.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$
• C. $A$ is correct; $R$ is incorrect
• D. $R$ is correct; $A$ is incorrect

Answer 1

Answer: (A)

In case of haloarenes, the phenyl cation formed as a result of self ionisation, will not be stabilised by resonance and therefore, $S _{ N }$ 1 mechanism is ruled out.