JEE Main Chemistry question

Not in JEE Main or NEET syllabus

In temporary poisoning, catalytic poisons act by:

(A)Coagulating the catalyst
(B)Chemically combining with any one of the reactants
(C)Chemically combining with the catalyst
(D)Getting physically adsorbed on the active centres of the catalystCorrect

Answer: (D)

Solution

Temporary (reversible) catalytic poisoning occurs when a poisoning substance is only weakly, physically adsorbed on the active centres of the catalyst, blocking them without forming a permanent chemical

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Question ID VK-144974