9
lesson pretestMultiple Choice

Pretest

Question 9 • CMS 2026-2027 Biology CREDIT RECOVERY

If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?

Answer
A
The rate would increase.
B
The rate would decrease.
C
The rate would be zero.
D
The rate would remain the same.

Explanation

Reducing the activation energy means more reactant particles have enough energy to overcome the barrier and react at the same temperature. This leads to more successful collisions per unit time, so the reaction rate increases. The correct choice is B, “The rate would increase.”

AI-written and checked against the verified answer.

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