Q. The Markownikoff’s rule is the best applicable to the reaction between
A) $C_{2}H_{4} + HCl$
B) $C_{3}H_{6} + Br_{2}$
C) $C_{3}H_{6} + HBr$
D) $C_{3}H_{8} + Cl_{2}$
Explanation
(c)
According to Markownikoff’s rule, the addition of a unsymmetrical reagent (HX) to an unsymmetric alkene takes place in such a way that the negative part of the reagent will be attached to the carbon atom which containing lesser number of H-atom. Hence, it is best applicable to the reaction between $C_{3}H_{6}\ and\ HBr$.
$CH_{3}CH = CH_{2} + HBr \rightarrow CH_{3} - CH - CH_{3}$
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$Br$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.