This article explores the effect of homogeneous-heterogeneous chemical reaction and partial slipon convective flow of a viscoelastic fluid with Cattaneo-Christov heat flux modelin the presence of suction/injection and convective boundary condition. The governing system of non-linear partial differential equations arereformed into ordinary differential equations with the help of similarity variables and then they are solved using homotopy analysis method. It is found that the surface heat transfer rate enhances on increasing the thermal relaxation time parameter and the surface mass transfer rate improved by increasing the slip parameter and homogeneous chemical reaction parameter. © 2017 Published under licence by IOP Publishing Ltd.