What is a catalyst? What is an inhibitor?
(N/A) Catalyst: $A$ catalyst is a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. For example,$MnO_{2}$ acts as a catalyst in the following reaction to increase its rate significantly:
$2KClO_{3} \xrightarrow{MnO_{2}} 2KCl + 3O_{2}$
Inhibitor: When an added substance reduces the rate of a chemical reaction,it is called an inhibitor. The term catalyst should not be used to describe an inhibitor.
$2KClO_{3} \xrightarrow{MnO_{2}} 2KCl + 3O_{2}$
Inhibitor: When an added substance reduces the rate of a chemical reaction,it is called an inhibitor. The term catalyst should not be used to describe an inhibitor.
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Similar Questions
Considering catalysis,which of the following statements is incorrect?
Easy
View SolutionMatch the following industrial processes in List-$I$ with the catalysts used in List-$II$:
List-$I$ (Industrial process) List-$II$ (Catalyst used) $A$. Ostwald's process $I$. $CuCl_2$ $B$. Haber's process $II$. Zeolites $C$. Deacon's process $III$. $Pt$ gauge $D$. Cracking of hydrocarbons $IV$. $Fe$
| List-$I$ (Industrial process) | List-$II$ (Catalyst used) |
|---|---|
| $A$. Ostwald's process | $I$. $CuCl_2$ |
| $B$. Haber's process | $II$. Zeolites |
| $C$. Deacon's process | $III$. $Pt$ gauge |
| $D$. Cracking of hydrocarbons | $IV$. $Fe$ |
$2 SO_{2(g)} + O_{2(g)} \stackrel{V_{2}O_{5}}{\rightleftharpoons} 2 SO_{3(g)}$ is an example of
When $KMnO_4$ solution is added to hot oxalic acid solution,the decolorization is slow in the beginning but becomes instantaneous after some time. This is because
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View SolutionWhich of the following catalysts is used in the contact process for the industrial production of sulfuric acid from $SO_2$ and $O_2$ (air)?
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