<p>The paper investigates the features of double-diffusive heat and mass transfer in the presence of convective boundary conditions and chemical processes in a viscous oscillatory electrically conducting micropolar fluid flowing across a moving plate. A mathematical model is formed. The mathematical model provided here, yields the dimensional governing equations. The dimensional governing equations are transformed into the non-dimensional governing equations. Using perturbation analysis, the non-linear partial differential equations are first converted into non-linear ordinary differential equations. The governing equations are then solved by the shooting approach and the Runge–Kutta 4th order method. The effects of the Soret and Eckert numbers during transformation are examined graphically for velocity, micro-rotation, temperature, and concentration distributions, as well as tabularly for skin friction and Nusselt number. The key findings are: with the rise of Soret number, heat source parameter, and viscous dissipation parameter, the velocity profiles get accelerated but a reverse trend occurred for microrotational velocity. The aforesaid parameters heat the fluid. The fluid concentration enhances with the growth in the thermal diffusion.</p>