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Which mechanism limits product formation using a poisoned catalyst?

A)Active site blocking reduces efficacy
B)Increased equilibrium constant is achieved
C)Increased surface area raises reaction rate
D)Lowered temperature promotes side products

💡 Explanation

Active site blocking by the poison prevents reactant adsorption inhibiting catalysis, because reduced surfaces are unavailable for reaction. Therefore, product formation is limited rather than increased reactant conversion because the catalyst deactivates by fouling.

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