CaC2 + 2H2O ---> C2H2 + Ca(OH)2C2H2 + H2 --(t,Ni)---> C2H4C2H4 + HOH ---> CH3 - CH2OHCH3 - CH2OH + HBr ---> CH3 - CH2Br + H2O
CaC2 + 2H2O ---> C2H2 + Ca(OH)2
C2H2 + H2 --(t,Ni)---> C2H4
C2H4 + HOH ---> CH3 - CH2OH
CH3 - CH2OH + HBr ---> CH3 - CH2Br + H2O