In a chemical reaction,a catalyst . . . . .

  • A
    is consumed in the reaction.
  • B
    decreases the activation energy.
  • C
    decreases the $\Delta H$ of the forward reaction.
  • D
    increases the $\Delta H$ of the forward reaction.

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Similar Questions

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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Two percent of ethanol is added during the oxidation of chloroform to stop the formation of carbonyl chloride. In this reaction,ethanol acts as:

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Assertion: $A$ catalyst is more effective in finely divided form.
Reason: Finely divided form has more surface area.

$ZSM-5$ is used in which of the following processes?

Which statement is incorrect for a catalyst?

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