Alkene to alkyl halidealkene + HX (hydrogen halide)HalohydrinX^2 + H2O , antiaddition, halonium intermediate (bromonium ion, andAlcohol oxymercurationHg(OAc)2 +H2O+ NaBH4 (markonikov)HydroborationBH3 + H2O2 H—C—-C—OHHydrogenation (alkene to Alkane)syn-addition (reduction) , adding…