Question detail

What effect do catalysts have on activation energy?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Rate of reaction

Question

A. They increase activation energy
B. They decrease activation energy
C. They have no effect on activation energy
D. They change the reaction pathway

Answer

They decrease activation energy

Explanation

The correct answer is They decrease activation energy. This answer directly addresses the question: What effect do catalysts have on activation energy? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.

Common mistake

Ignoring Catalysts in Equations

Students often include catalysts in the overall chemical equation for the reaction.

Remember that catalysts are not part of the overall equation; they facilitate the reaction but do not get consumed.

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