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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a catalyst?
💡 Hint: Think about roles in reactions.
Question 2
Easy
Give an example of a catalyst.
💡 Hint: Consider chemicals used to speed up reactions.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a catalyst do in a chemical reaction?
- Increases the reaction time
- Decreases the activation energy
- Is consumed in the reaction
💡 Hint: Consider what happens to energy barriers.
Question 2
True or False: Catalysts are consumed during reactions.
- True
- False
💡 Hint: Think about the lifecycle of a catalyst.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a reaction that has a high activation energy, what would be the impact of introducing a catalyst? Discuss its effects on reaction rate and the energy profile of the reaction.
💡 Hint: Think about the energy graph and how catalysts change it.
Question 2
Evaluate the role of catalysts in environmental chemistry, particularly in processes such as catalytic converters in cars. How do they contribute to reducing emissions?
💡 Hint: Consider the direct effects on vehicle emissions and the environment.
Challenge and get performance evaluation