СаС2 +2H2O--->. Ca(OH)2 +C2H2
C2H2 ----(+H2)--->C2H4
C2H4 ----(+H2)---->C2H6
C2H6 +CL2----> C2H5Cl +HCl
C2H5CL +NaOH---->C2H5OH +NaCL