The densities (ρ), viscosity (η) and refractive indices (n) of the binary mixture of 1,3-Dioxolane +1-pentanol, 1,3-Dioxolane +1- hexanol, 1,3-Dioxolane +1-heptanol, 1,3-Dioxolane +1-octanol, 1,3- Dioxolane +1-nonanol and 1,3-Dioxolane +1-decanol for the entire concentration range have been measured at 298.15K, furthermore, deviation in refractive indies from ideal mixture for this mixture has also been evaluated.The determination of light refractive index is an important step in the characterization of liquid mixtures with different industrial applications. Through it, the purity of their substances can be assessed and, together with density and viscosity, it has a significant role in characterizing and understanding the thermodynamic properties of the liquids. The results are presented in terms of excess refractive indices from the experimental values. The deviations from ideality of the refractive indices are explained on the basis of molecular interaction between the component molecules in these binary liquid mixtures.