Question detail

What is the role of a catalyst in a chemical reaction?

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

Show answer Topic hub Objective page

At a glance

MCQ

Type

practice

Style

Topic

Rate of reaction

Question

A. To increase the concentration of reactants
B. To provide energy for the reaction
C. To change the rate of the reaction without beingused up
D. To produce more products than reactants

Answer

To change the rate of the reaction without beingused up

Explanation

The correct answer is To change the rate of the reaction without beingused up. This answer directly addresses the question: What is the role of a catalyst in a chemical reaction? 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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