Which of the following is an example of catalytic poisoning?

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Catalytic poisoning occurs when a substance (a catalytic poison) binds strongly to the active sites of a catalyst, blocking reactants from adsorbing and thereby destroying or reducing its catalytic activity. Arsenic acts as a poison for the iron catalyst used in the Haber process for ammonia synthesis.

Which of the following is an example of catalytic poisoning? MCQ with Answer and Explanation

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