Q. The most stable carbocation from the following is :
A) [image:2025J22S2_Q67_opt_a.png]
B) [image:2025J22S2_Q67_opt_b.png]
C) [image:2025J22S2_Q67_opt_c.png]
D) [image:2025J22S2_Q67_opt_d.png]
Explanation
[Solution by Dr. Abubacker] These are benzyl cations. The para-OMe group donates electron density by resonance (+M), directly delocalising the positive charge onto oxygen, which is more stabilising than the hyperconjugation of p-CH₃, the plain benzyl cation, or the meta-OMe (only −I effect at the meta position). Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.