This study aims to employ low cost adsorbent such as activated Na Bentonite to remove hexavalent ion of Chromium (VI) from aqueous solution. The cumulative effect of different parameters like initial metal ion concentration, pH, rpm, adsorbent dosage and optimizing the process conditions for the maximum removal of Chromium (VI) was studied using response surface methodology. A 24 factorial central composite design using response surface methodology was used to get the mutual interaction between variables and then optimizing it. A Maximum chromium adsorption of 97.39% was achieved at pH 2.4 with adsorbent dosage 3.2 g, initial metal on concentration of 170 ppm and roation speed of 180 rpm. The FTIR spectrum of Na bentonite was used to identify the functional groups. SEM was used to study the changes in morphology of Na bentonite. The adsorption process has fit freundlich isotherm model and Pseudo first order kinetics.