C2H4-C2H6-C2H5Cl-C2H5OH-C2H5ONa
1) C2H4 + H2 = C2H6 2) C2H6 + Cl2 = C2H5Cl + HCl 3) C2H5Cl + NaOH = C2H5OH + NaCl 4) 2C2H5OH + 2Na = 2C2H5ONa + H2