The best way to prepare 1,2-Dibromoethane is to treat :
(a) Ethylene with Br2
(b) Acetylene with excess of HBr
(c) Ethylene with excess of HBr
(d) 1,2-Dichloroethane with Br2
(a) Ethylene with Br2
(b) Acetylene with excess of HBr
(c) Ethylene with excess of HBr
(d) 1,2-Dichloroethane with Br2