Question

For the given reaction , (A) and (B) are major products. then major product (C) is :

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

Alkanes on reaction with $KMn{O}_4$ oxidise to give alcohols or carboxylic acid.
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.