What is the major organic product(s)obtained in the following reaction?

Question

Quizplus · Accepted Answer

The reaction involves the addition of HBr to an alkene. This is a Markovnikov addition where the H adds to the carbon with the most number of hydrogens, while the Br adds to the carbon with the least number of hydrogens. In this case, the H will add to the first carbon of the alkene to form a more stable carbocation intermediate. The Br ion will then add to the carbocation to give product I. However, since there are two possible carbocation intermediates that can form, there is a possibility of a rearrangement occurring. This is where a hydrogen atom from a neighboring carbon is shifted to the carbon that forms the carbocation, resulting in a more stable carbocation intermediate. In this case, a hydride shift occurs to form a tertiary carbocation intermediate, which then undergoes nucleophilic attack by Br- to give product II. Therefore, the major organic products obtained in the reaction are I and II.

What Is the Major Organic Product(s)obtained in the Following Reaction