Question

$\text{2-methylpropan-2-ol}\underset{\Delta }{\overset{H^{+}}{\to }}\underset{\text{Major Product}}{A}\underset{ROOR}{\overset{HBr}{\to }}\underset{\text{Major Product}}{B}$

The major product B for the above reaction is :

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

Alcohols undergo dehydration to form more substituted alkene as a major product when reacted with $H^{+}$ in presence of heat
Alkenes on reaction with $HBr$
in presence of peroxide undergo anti-markovnikov addition:
Anti-Markovnikov addition :
In the presence of peroxide, the addition of $HBr$ to unsymmetrical alkenes takes place at doubly bonded C which posses greater number of hydrogen atoms.
Also known as peroxide or Kharasch effect.
Option (b) is correct