Farnesene is the compound responsible for the characteristic smells of green apples. Its IUPAC name is 3,7,11-trimethyl-dodeca-1,3,6,10-tetraene. Predict the major product formed when farnesene reacts with excess HBr.

Chemical structure of farnesene, a compound with a characteristic green apple smell.

Reaction diagram showing farnesene reacting with excess HBr to predict the major product.

Chemical structure of the major product formed from farnesene and HBr reaction.

Illustration of the hydrohalogenation reaction mechanism involving farnesene and HBr.