Which of the following statements is most accurate regarding a catalyst?

  • A
    $A$ catalyst only increases the rate of a chemical reaction.
  • B
    $A$ catalyst decreases the rate of a chemical reaction.
  • C
    $A$ catalyst controls the speed of the reaction.
  • D
    $A$ catalyst alters the rate of a chemical reaction.

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Similar Questions

According to the adsorption theory of catalysis,the rate of reaction increases because:

Which of the following statements is $NOT$ true for a catalyst?

According to the adsorption theory,which of the following types of catalysis can be explained?

Match the Column-$I$ with Column-$II$ and mark the appropriate choice.
Column-$I$ Column-$II$
$A. V_2O_5$ $i. \text{Conversion of } SO_2 \text{ to } SO_3$
$B. Ni$ $ii. \text{Hydrogenation of oils}$
$C. MnO_2$ $iii. \text{Preparation of } O_2 \text{ from } KClO_3$
$D. Fe$ $iv. \text{Haber's process}$

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Which of the following is the first step in the mechanism of heterogeneous catalysis?

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