Page 1 CBSE TEST PAPER-03 CLASS - XII CHEMISTRY (Surface chemistry) Topic: Hetrogeneous catalysis, zeolites, enzyme catalysis 1. Explain modern theory of heterogeneous catalysis. [2] 2. What is meant by activity and selectivity of a catalyst? [2] 3. What is shape – selective catalysis? Give an example of shape selective catalyst. [2] 4. Give two examples of enzyme catalysed reaction. [2] 5. Write characteristics of enzyme catalysed reactions. [3] 6. Explain the mechanism of enzyme catalysis. [2] 7. Name some important industrial catalytic process and their catalysts. [3] 8. How do metal ions act as activators? [1] 9. What is the optimum temperature and pH for enzyme catalysed reactions? [1] 10. Give two examples of reactions catalysed by zeolites. [2]Read More