Здійснити перетворення: C2H5OH-->CH3COOH-->CH3COOCH3-->CH3OH-->CO2
C2H5OH+[O]= СH3COOH CH3COOH+CH3OH=CH3COOCH3+H2O CH3COOCH3+H2O=CH3COOH+CH3OH CH3OH=Co2+2H2