A mathematical analysis has been carried out for stagnation-point heat and mass transfer of a viscoelastic fluid over a stretching
sheet with surface slip velocity, concentration dependent diffusivity, thermal convective boundary conditions, and heat source/sink.
The governing partial differential equations are reduced to a system of nonlinear ordinary differential equations using Lie group
analysis. Numerical solutions of the resulting ordinary differential equations are obtained using shooting method. The influences
of various parameters on velocity, temperature, and mass profiles have been studied. Also, the effects of various parameters on the
local skin-friction coefficient, the local Nusselt number, and the local Sherwood number are given in graphics form and discussed.