An analysis of radiative heat and mass transfer on the onset chemical reactive rotating fluid on a stratified steady state in a porous medium has been carried out .In addition the influence on rotation, radiative heat transfer and chemical reaction where investigated by imposes a time dependent perturbation on concentration, temperature and velocity. Their involvements are assumed to be large so that heat radiation, chemical reaction and heat transfer is significant. This renders the problem inhomogeneous even on assumption of differential approximation for the radiative flux with the chemical reaction. When the perturbation is small, the transient flow is tackled by laplace transform technique with the involvement of modified Bessel function of first and modified second order given solution for stable steady state, temperature solute concentration and velocity. Consequence of the stable steady state Analysis and numerical solution where obtained by the use of the ratio of marginal state and asymptotic state on the concentration and temperature are presented graphically display. Their profile on the chemical reaction parameters, concentration decreases due to the variations of the chemical reaction parameter, causing a corresponding asymptotic change in the porous medium. Concentration profile on the Schmidt number, concentration decreases as a result of the variation of the Schmidt number parameter causing a corresponding asymptotic change in the porous medium. Temperature profiles on the radiation parameter, temperature decrease due to the variation of radiation parameter resulting to a corresponding asymptotic change in the porous medium. Temperature profiles on the Prandtl number, temperature decrease following the variation of the Prandtl number, resulting to a corresponding asymptotic change in the porous medium.
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