JEE Main Chemistry question

A catalyst is a substance which

(A)Is always in the same phase as in the reactions
(B)Alters the equilibrium in a reaction
(C)Does not participate in the reaction but alters the rate of reactionCorrect
(D)Participates in the reaction and provides an easier pathway for the same

Answer: (C)

Solution

A catalyst can be in the same phase as the reactants (homogeneous) or a different phase (heterogeneous), so (A) is not a general truth, and a catalyst never alters the position of equilibrium, so (B) is false. At this level,

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Question ID VK-144720