What is the major organic product that results when 1-heptene is treated with hbr?

According to Markovnikov's rule," the incoming electrophile will bond to that carbon which has greater number of hydrogen atom or less number of carbon atoms". Hence in case of 1-Heptene the electrophile (Hydrogen) goes to carbon one because it has two hydrogen atoms as compare to carbon two, containing only one hydrogen.

Result:

The major product formed in this reaction is 2-Bromoheptane. Reaction is shown below,