The effect of a nano MHD free convective heat absorbing/generating viscous dissipative newtonian fluid under variable temperature has been investigated in the current theoretical work. Using an analytical and numerical finite difference approach, the governing equations for the problem are resolved for velocity, temperature, and concentration. Graphs are used to study and depict the fluctuations in velocity, temperature, and concentration caused by the influence of various physical parameters. Additionally, we have noted the numbers for local skin friction, heat transfer, and mass transfer rates and talked about each one's features.