We apply the one parameter continuous group method to investigate similarity solutions of magnetohydrodynamic (MHD) heat
andmass transfer flow of a steady viscous incompressible fluid over a flat plate. By using the one parameter groupmethod, similarity
transformations and corresponding similarity representations are presented. A convective boundary condition is applied instead
of the usual boundary conditions of constant surface temperature or constant heat flux. In addition it is assumed that viscosity,
thermal conductivity, and concentration diffusivity vary linearly. Our study indicates that a similarity solution is possible if the
convective heat transfer related to the hot fluid on the lower surface of the plate is directly proportional to (
