Predict the major organic product of the following reaction.

• A.
• B.
• C.
• D.

Answer: (D)

Verified step by step guidance

1. Identify the type of reaction: The reaction involves an alkene and HBr in the presence of H2O2, which indicates a radical addition reaction following the anti-Markovnikov rule.
2. Understand the anti-Markovnikov addition: In the presence of peroxides (H2O2), HBr adds to the alkene such that the bromine atom attaches to the less substituted carbon atom of the double bond.
3. Initiate the radical chain mechanism: The reaction begins with the homolytic cleavage of the O-O bond in H2O2, forming hydroxyl radicals. These radicals abstract a hydrogen atom from HBr, generating bromine radicals.
4. Propagate the radical chain: The bromine radical adds to the less substituted carbon of the alkene, forming a new carbon radical at the more substituted position.
5. Terminate the reaction: The carbon radical abstracts a hydrogen atom from another HBr molecule, resulting in the formation of the bromoalkane product with the bromine atom on the less substituted carbon.