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Q.

What is the role of a catalyst in a catalyzed reaction

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a

Lowers the activation energy

b

Increases the activation energy

c

Affects the free energy change

d

Affects the enthalpy change

answer is A.

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Detailed Solution

All substance have average energy and before the reaction occurs energy of the reactant should be higher than the average energy. We also known that catalyst lowers the activation energy. Therefore, rate of reaction in increased.
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