Which is not true for a catalyst?

(A) It appears as a reactant in the net chemical reaction
(B) It causes a lowering of the activation energy
(C) It can be homogeneous or heterogeneous
(D) It increases the rate of a chemical rate of a reaction

(A) It appears as a reactant in the net chemical reaction

Explanation:

A catalyst is  A substance that speed up the chemical reaction without its self being consumed in the reactants or the products.It does this by lowering the activation energy of the reaction by speeding up the rate of reaction.

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