C2H6 + Br2 -> C2H5Br
C2H5Br + KOH -> C4H10 + KBr + H2O
C4H10 + O2 -> CH3COOH + H2O
CH3COOH + KOH -> CH3COOK + H2O
CH3COOK -> CH4 + CO2
2C2H2 -> C2H4
C2H6 + Br2 -> C2H5Br
C2H5Br + KOH -> C4H10 + KBr + H2O
C4H10 + O2 -> CH3COOH + H2O
CH3COOH + KOH -> CH3COOK + H2O
CH3COOK -> CH4 + CO2
2C2H2 -> C2H4