Question

What types of catalyst is called a negativecatalyst​

Answer 1

Answer:

A reaction inhibitor which slows down the reaction is called a negative catalyst.

Hope this helps!

Answer 2

Answer:

A catalyst which decreases or retards the rate of reaction is called negative catalysts.



Negative Catalysts

It is because a -ve catalyst increase activation energy by taking a longer alternative path.

E.g. (1) 

(2) T.E.L (Tetra Ethyl Lead) an ant knocking substance is added to petrol to decrease the ignition of petrol vapours.

(3)  Here  acts as -ve catalyst to slow the oxidation .

(4) Acetanilide also acts as —ve catalyst in decomposition of