DP Chemistry Questionbank
A.3 Catalysts
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- 18M.3.sl.TZ2.3c.iii: Vanadium(V) oxide is used as the catalyst in the conversion of sulfur dioxide to sulfur...
- 18M.3.sl.TZ1.4c.i: The production of HDPE involves the use of homogeneous catalysts. Outline how homogeneous...
- 17N.3.sl.TZ0.5: Catalysts can take many forms and are used in many industrial processes. Suggest two reasons why...
- 17M.3.sl.TZ2.5a: In a catalytic converter, carbon monoxide is converted to carbon dioxide. Outline the process for...
- 17M.3.sl.TZ1.9b: Suggest why it is important to know how catalysts function.
- 17M.3.sl.TZ1.9a: Catalysts reduce the activation energy. Outline how homogeneous catalysts are involved in the...
- 16N.3.sl.TZ0.5b: Nanocatalysts play an essential role in the manufacture of industrial chemicals. (i) Describe...
- 16N.3.sl.TZ0.5a: Explain, with reference to their structure, the great selectivity of zeolites as catalysts.
- 16M.3.sl.TZ0.4b: Explain how zeolites act as selective catalysts.
- 15M.2.hl.TZ1.3d: Outline the economic importance of using a catalyst in the Contact process.
- 14N.2.hl.TZ0.10d: Transition metals and their compounds often catalyse reactions. The catalyzed decomposition of...
- 14N.3.sl.TZ0.9a: State the type of catalysis occurring in reaction I.
- 14N.3.sl.TZ0.9b: Outline the mechanism by which each catalyst lowers the activation energy in the reactions above,...
- 13N.3.sl.TZ0.9b.i: Identify the role of the zeolite in the reaction.
- 13N.3.sl.TZ0.9b.ii: Suggest an explanation for its efficiency in favouring the production of the crystalline polymer.
- 13M.3.sl.TZ1.C2c: Catalytic cracking uses silica as a heterogeneous catalyst. Explain the mode of action of a...
- 13M.3.sl.TZ1.C2d: State one advantage of using a heterogeneous catalyst rather than a homogeneous catalyst.
- 13M.3.sl.TZ1.C2e: Discuss two factors that need to be considered when choosing a catalyst for a process.
- 13M.3.sl.TZ2.C2b: Other than cost, state one advantage and one disadvantage of using a homogeneous catalyst rather...
- 13M.3.sl.TZ2.C2c: Other than selectivity and cost, list three factors which should be considered when choosing a...
- 13M.3.sl.TZ2.C2a: Distinguish between a homogeneous and a heterogeneous catalyst.
- 12N.3.sl.TZ0.C4: State three factors which need to be considered when an industrial catalyst is chosen. In...
- 09N.3.sl.TZ0.C3c.i: Suggest two reasons why they are effective heterogeneous catalysts.
- 10M.3.sl.TZ1.C3a: State the difference between homogeneous and heterogeneous catalysts.
- 10M.3.sl.TZ1.C3b: State one advantage and one disadvantage that homogeneous catalysts have over heterogeneous...
- 10M.3.sl.TZ1.C3c: Apart from their selectivity to form the required product and their cost, discuss two other...
- 09M.3.hl.TZ2.E2b: (i) Deduce the type of catalysis that occurs. (ii) Outline why the depletion of ozone is...
- 11M.3.sl.TZ1.C2b.i: Explain how these differ from homogeneous catalysts.
- 11M.3.sl.TZ1.C2b.ii: Identify one disadvantage of using heterogeneous catalysts.
- 11M.3.sl.TZ2.C2c: Discuss two factors which need to be considered when selecting a catalyst for a particular...
- 11M.3.sl.TZ2.C2a: Distinguish between homogeneous and heterogeneous catalysts.
