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Question

According to adsorption theory of catalysis, the speed of reaction increases because:

A

the concentration of the reactant molecules at the active centres of the catalyst becomes high due to adsorption

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B

in the process of adsorption, the activation energy of the molecules becomes large

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C

adsorption produces heat which increases the speed of the reaction

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D

adsorption lowers the activation energy of the reaction

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Solution

The correct option is A the concentration of the reactant molecules at the active centres of the catalyst becomes high due to adsorption

According to adsorption theory of catalysis, the speed of reaction increases because the concentration of the reactant molecules at the active centres of catalyst becomes high due to adsorption.
Hence option A is correct.

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