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According to adsorption theory of cataly...

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

A

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

B

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

C

adsorption produces heat which increases the speed of the reaction.

D

adsorption lowers the activation energy of the reaction.

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