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Catalysts (GCSE Chemistry)
The following is a GCSE Chemistry test covering 'Catalysts' from the broader topic The Rate And Extent Of Chemical Change. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Question 1
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Which of the following best describes catalytic poisoning?
Which is a correct effect of adding a catalyst to a reversible reaction at equilibrium?
Which property is true for enzymes (biological catalysts) but not normally true for inorganic catalysts?
Which option correctly explains why a catalyst must be regenerated or replaced when poisoned?
Which explanation correctly describes why increasing the surface area of a solid heterogeneous catalyst increases the reaction rate?
Which statement about homogeneous catalysts is correct?
Which of the following is the best example of a heterogeneous catalyst?
In the decomposition of nitrogen monoxide (2 NO ? N2 + O2), what is the role of a catalyst present in the reaction vessel?
In the decomposition of hydrogen peroxide (H2O2 ? H2O + 1/2 O2), manganese dioxide acts as a catalyst by which mechanism?
Which of the following describes how a catalyst affects the activation energy and the position of equilibrium?
Which circumstance would make a heterogeneous catalyst less effective in a reaction?
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