Question

How many types of catalysts?

Answer 1

Their are mainly two types of catalyst

Positive Catalyst

Negative Catalyst

Positive catalyst increase the rate of chemical reaction and Negative catalyst decreases the rate of chemical reaction.

@X-SMARTY

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.