Hydrogen and methane produced during the -radiolysis of 2-propanol have been measured in the absence and presence of 0.1 and 0.01 M ketone (1-(2-furanyl)-1-hexanone) at different doses. In the absence of ketone at 100 kGy, the hydrogen and methane yields were found to be G(H2)=5.1 and G(CH4)=2.02. At lower ketone concentrations the hydrogen and methane yields were G(H2)=4.35 and G(CH4)=1.83, while higher concentrations decreased the above values to G(H2)=2.95 and G(CH4)=1.33, respectively. The radiolytic mechanism is discussed in detail.