Which of the following compounds would undergo S_N1 reaction faster and why?

Question

Which of the following compounds would undergo S N 1 reaction faster and why? (A) (B)

Philoid · Accepted Answer

The compound (B) would undergo S_N1 reaction faster than (A) due to the resonance stabilization of the benzyl ring. After the cleavage of the –Cl from the ring, the carbocation C₆H₅CH₂Cl⁺ is highly stable and it is driven to carry out the S_N1 reaction.

Which of the following compounds would undergo SN1 reaction faster and why?(A)(B)

Which of the following compounds would undergo S_N1 reaction faster and why?
(A)

(B)