Q. Which of the following applies in the reaction $CH_{3}CHBrCH_{2}CH_{3}\overset{Alco.KOH\ }{\rightarrow}?$ $(I)CH_{3}CH = CHCH_{3}($Major product$)$ $(II)CH_{2} = CHCH_{2}CH_{3}($Minoe product$)$
A) Hofmann’s rule
B) Saytzeff’s rule
C) Kharasch effect
D) Markownikoff’s rule
Explanation
(b)
[image:12_image277.emf]
This reaction is governed by Saytzeff’s rule. According to this rule the elimination of $\beta$-hydrogen atom take place from the carbon having the lesser number of $H$-atoms or in other words a stable alkene is formed. (More substituted alkene is more stable)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.