Question

What do you know about types of catalyst and about characteristics of catalyst?

Answer 1

Answer:

any substance that increases the rate of a reaction without itself being consumed. Enzymes are naturally occurring catalysts responsible for many essential biochemical reactions.

Explanation:

Answer 2

TYPES AND CHARACTERISTIC OF CATALYSTS :

(A) POSITIVE CATALYST : When a catalyst accelerates the rate of a reaction then it is called a positive catalyst. For example, the rate of decomposition of hydrogen peroxide gets increased in the presence of Manganese dioxide.

(B) NEGATIVE CATALYST : When a catalyst retards or decreases the rate of a reaction then it is called a negative catalyst. For example, Phosphoric acid retards the rate of decomposition of hydrogen peroxide.