Question

what is catalysts????​

Answer 1

The chemical substances that changes the rate of chemical reaction (either increases or decreases) without being consumed itself is calle catalyst. They are of two types:positive and negative
Positive catalyst increases the rate of chemical reaction and negative catalyst decrease the rate of chemical reaction.

Answer 2

IN BIOLOGY CATALYST MEANS ENZYME IN CHEMISTRY CATALYST IS:

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.