Consider the following reaction for the given image

 

 

 

 

The Major product formed in the reaction is :

Step-by-Step Mechanism:

1. Protonation of Hydroxyl Group (-OH):
   • The -OH group on the secondary carbon is protonated by HBr, converting it into a better leaving group as water (H₂O).
2. Formation of Carbocation:
   • Once water is eliminated, a carbocation intermediate is formed at the position where the -OH group was attached.
   • Since carbocations are unstable, rearrangements may occur to form a more stable carbocation.
3. Hydride Shift:
   • A hydride shift from the adjacent tertiary carbon stabilizes the carbocation by relocating the positive charge to the tertiary carbon, which is more stable due to greater alkyl substitution.
4. Nucleophilic Attack by Br⁻:
   • The bromide ion (Br⁻) attacks the carbocation, resulting in the formation of the major product.

Major Product:

The major product will be a bromoalkane where Br is attached to the tertiary carbon (as this position provides maximum stability to the carbocation).