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.

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

Tardigrade Admin · Accepted Answer

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.

Q. 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.

Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$

Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$

$A$ is correct; $R$ is incorrect

$R$ is correct; $A$ is incorrect

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.

Q. Assertion (A) SN​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.

Both A and R are correct; R is the correct explanation of A

Both A and R are correct; R is not the correct explanation of A

A is correct; R is incorrect

R is correct; A is incorrect