The densities and viscosities for the binary mixtures of acrylonitrile with aromatic ketoncs (acetophenone., propiophenone, paramethyl acetophenone and parachloro acetophenone) have been reported over the entire range of mole fraction at 308.15 K. The excess molar volume (V-E) and deviation in viscosity (Delta eta) are fitted to a Redlich-Kister type equation. Other parameters like excess Gibbs free energy of activation of viscous flow (G(*E)) and Grunberg-Nissan interaction parameter (d') are also utilized in the qualitative analysis to elicit the information on the nature of the bulk molecular interactions of acrylonitrile + aromatic ketone binary mixtures.