question_answer 56)

    Arrange the following diagrams in correct sequence of steps involved in the mechanism of catalysis, in accordance with modern adsorption theory. (a) l®ll®lll®IV®V (b) l®|||®||®|V®V (c) l®lll®ll®V®IV (d) |®||®|||®V®IV

Answer:

                    (b) Correct sequence is l->lll->ll->IV->V Each transformation denotes a meaningful process as follows I ® adsorption of A and B on surface III ® II interaction between A and 6 to form intermediate II ® IV starting desorption of A?B IV ® V complete desorption