Question

what is catalyst ........

Answer 1

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A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.:-) --:-) --



a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
"chlorine acts as a catalyst promoting the breakdown of ozone"
a person or thing that precipitates an event.
"the prime minister's speech acted as a catalyst for debate":-) :-) ----



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Answer 2

$\textbf{Answer :}$



$\huge\textbf{Catalyst :}$


→ $Catalyst$ is a substance or material that increases the rate of reaction.

→ It is not consumed by the reaction.

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$\underline{Two\:Classes\::}$


* Positive catalyst :- In which rate of reaction increases.

* Negative catalyst :- In which rate of reaction decreases.

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$\underline{Types\::}$


There are three types of catalyst :

* Homogeneous catalyst.

* Heterogeneous catalyst.

* Enzymatic catalyst.

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