5.19 Give four examples of heterogeneous catalysis.
Four examples of heterogeneous catalysis-
1. oxidation of sulphur dioxide into sulphur trioxide in the presence of Pt.
2. the combination between dinitrogen and dihydrogen to form ammonia
3. Hydrogenation of vegetable oils in the presence of Ni as a catalyst
4. Ostwald Process - oxidation of ammonia into nitric acid in the presence of Pt