1.CO+2H2(t) ->CH3OH
2.CH3OH+CuO(t) -> H-COH+Cu+H2O
3.H-COH+Ag2O(t) -> H-COOH +2Ag
4.2H-COOH+Na2CO3-> 2H-COONa+H2O+CO2
1.C6H5-C2H5 (t) -> C6H5-CH=CH2=H2
2.C6H5-CH=CH2+2KMnO4+3H2SO4 -> C6H5-COOH+CO2+K2SO4+2MnSO4+4H2O
3.C6H5-COOH+NaOH ->C6H5-COONa+H2O
4.C6H5-COOH+ CH3-OH ->C6H5-CO-O-CH3+H2O