The following two catalytic mixtures are envisaged for a certain reaction: (1) Mixture 1: 16%ZnO+84%TiO2 (2) Mixture 2: 25.5\% ZnO+74.5%TiO2 The densities of ZnO and TiO2 are 5.6gcm3 and 4.2gcm3 respectively. From microscopic analysis it is found that the ZnO particles are of the form of regular tetrahedrons of edge length l=106cm while the TiO2 particles are cubes of edge length d=2108cm. If the catalytic activity increases directly with specific area which of the two mixtures would be the better catalyst? Given: Volume of a regular tetrahedron =0.11765l3 and Area of a regular tetrahedron =1.73205l2. Answer (1) Mixture 1: Asp=6107cm2/g (2) Mixture 2: Asp=5.322107cm2/g