Q. Which is most reactive towards SN1 reaction?
A) C₆H₅CH₂Br
B) C₆H₅CH(C₆H₅)Br
C) C₆H₅CH(CH₃)Br
D) C₆H₅C(CH₃)(C₆H₅)Br
Explanation
[Solution from source] SN1 rate depends on carbocation stability. C₆H₅C(CH₃)(C₆H₅)Br gives a tertiary carbocation stabilised by two phenyl rings and a methyl group, the most stable of the four. Benzyl bromide gives only a primary benzylic cation. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.