Question

what is the major organic product formed when 3-methyl but-1-ene undergoes hydrohalogenation in presence of HBr?

Answer 1

We should use Markovnikov's rule to predict the major product of the reaction of hydrohalogenation of unsymmetrical alkenes: the hydrogen atom in the hydrogen halide forms a bond with the doubly bonded carbon atom in the alkene, bearing the greater number of hydrogen atoms.