Question

what is catalyst? why it is used during some chemical reactions?

Answer 1

Catalysts – A catalyst is a substance that changes the rate of a chemical reaction, but is chemically unchanged at the end of the reaction. An inhibitor does the opposite – it slows downchemical reactions.

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Answer 2

Catalyst us a substance that increased the rate of chemical reaction without itself undergoing any chemical reaction. catalyst is needed to increase the rate of reaction between large amounts of reactants

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