Q.
The correct stability order for the following species as
A) II>IV>I>III
B) I>II>III>IV
C) II>I>IV>III
D) I>III>II>IV
Explanation
(d)
I>III>II>IV
[image:12_image440.emf]$+ M$ effect, hyperconjugation (6Hs) and $+ I$ effect (2 Me-groups)
[image:12_image441.emf]$+ M$ effect, hyperconjugation (3Hs) and $+ I$ effect (1-Me group)
[image:12_image442.emf]Hyperconjugation (5Hs) and $+ I$ effect
[image:12_image443.emf]Hyperconjugation (2Hs) and $+ I$ effect
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.