The study of chemical reactions plays the vital role for understanding the problems of science and engineering such as photosynthesis; heat mass transfer; nuclear reactor; photon emission and radioactive decay. The main objective of this manuscript is to make use of Anuj transform in order to analytically determine the solution of the problem of concentrations of the reactants of first order consecutive chemical reaction. Results suggested that Anuj transform is efficient method for determining the solution of the problem of concentrations of the reactants of first order consecutive chemical reaction. Results of the manuscript demonstrate that Anuj transform has good accuracy and provide exact results without doing intricate calculation work.