JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Statement 1: The activity of a catalyst depends upon the strength of physisorption. Statement 2: The reactant must adsorb very strongly for the catalyst to be active.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is TrueCorrect

Answer: (D)

Solution

Catalytic activity actually depends on the strength of chemisorption of the reactant onto the catalyst surface, not merely weak physisorption, so Statement 1 is false. For a catalyst to remain active, the reactant must indeed

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Question ID VK-144808