Foundation Level (Fail → Pass)

Basic prompts to build core understanding.

1. Define reaction rate.

2. What is activation energy?

3. How does temperature affect reaction rate?

4. What is a catalyst?

5. Explain what is meant by a "successful collision".

6. Describe how concentration affects reaction rate.

7. What is meant by the term "rate of reaction"?

8. Give one example of a fast reaction and one of a slow reaction.

9. Define the term "reaction mixture".

10. State one way to measure how fast a reaction occurs.

 Intermediate Level (Pass → Credit)

Prompts involving reasoning, explanation, and graphical interpretation.

1. Explain collision theory.

2. Describe how catalysts lower activation energy.

3. Draw a simple energy profile diagram for a catalyzed and uncatalyzed reaction.

4. Explain why increasing surface area increases reaction rate.

5. Describe how pressure affects reaction rate in gases.

6. Explain the effect of temperature on collision frequency.

7. Define the rate constant (k) and give its significance.

8. Explain how to determine reaction order experimentally.

9. Describe how to use a concentration–time graph to find reaction rate.

10. Explain why some reactions stop before all reactants are used up.

Advanced Level (Credit → Distinction)

High-level reasoning, calculations, and analysis.

1. Derive the Arrhenius equation and explain each term.

2. Explain how to determine activation energy using an Arrhenius plot.

3. Analyse why reaction rate increases exponentially with temperature.

4. Discuss the difference between zero-, first-, and second-order reactions.

5. Explain why first-order reactions have constant half-lives.

6. Predict reaction order from rate–concentration graphs.

7. Evaluate how catalysts change the mechanism of a reaction.

8. Interpret complex energy profile diagrams with intermediates.

9. Explain how reaction mechanisms support observed rate laws.

10. Design an experiment to measure the rate of decomposition of hydrogen peroxide.