JEE Main Chemistry question

A catalyst is a substance which

(A)Increases the equilibrium constant of the reaction
(B)Increases equilibrium concentration of products
(C)Does not alter the reaction mechanism
(D)Changes the activation energy of the reactionCorrect

Answer: (D)

Solution

A catalyst does not shift the position of equilibrium and therefore leaves the equilibrium constant and the equilibrium concentrations of reactants and products unchanged, ruling out (A) and (B); it works

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Question ID VK-144710