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Questions  >>  CBSE XII  >>  Chemistry  >>  Chemical Kinetics
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What is the Role of Catalyst in a Chemical Reaction

$\begin{array}{1 1} \text{(a) A catalyst is a substance that speeds up the rate of a chemical reaction and also reduced during the course of the reaction.} \\ \text{(b) A catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.} \\ \text{(c) A catalyst is a substance that reduces the rate of a chemical reaction but is not consumed during the course of the reaction.} \\ \text{(d) A catalyst is a substance that speeds up the rate of a chemical reaction and it is consumed during the course of the reaction.} \end{array} $

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