Question

write short note on catalyst?

Answer 1

catalyst are substances which change the rate of a chemical reaction

Answer 2

Hello Mate,


Catalysis is the process of increasing the rateof a chemical reaction by adding a substance known as a catalyst which is not consumed in the catalyzed reaction and can continue to act repeatedly. Because of this, only very small amounts of catalyst are required to alter the reaction rate in principle....
A substance which provides a mechanism with a higher activation energy does not decrease the rate because the reaction can still occur by the non-catalyzed route. An added substance which does reduce the reaction rate is not considered a catalyst but a reaction inhibitor ...


Hope this helps you