A substance which increases or decreases the rate of a chemical reaction.

Open in App

Solution

Catalysts are the substances that take part in chemical reactions to increase or decrease the speed of reaction, without undergoing any change in themselves.
A promoter is a substance which increases the efficiency of a catalyst.
Hence, the answer is the catalyst.

Suggest Corrections

Similar questions

Which of the following statements are in accordance with the Arrhenius equation?
(a) Rate of a reaction increases with increase in temperature
(b) Rate of a reaction increases with a decrease in activation energy
(c) Rate constant decreases exponentially with an increase in temperature
(d) Rate of reaction decreases with a decrease in activation energy

Q. The substance which decreases the rate of a chemical reaction is called:

Q. A substance which alters (i.e. increases or decreases) the rate of the reaction without taking part in the reaction is called

Q. A catalyst either increases or decreases the rate of a chemical change and at the end of the reaction.

A foreign substance that increase the speed of a chemical reaction is called

Join BYJU'S Learning Program

A substance which increases or decreases the rate of a chemical reaction.

Catalysts are the substances that take part in chemical reactions to increase or decrease the speed of reaction, without undergoing any change in themselves.A promoter is a substance which increases the efficiency of a catalyst.Hence, the answer is the catalyst.

Catalysts are the substances that take part in chemical reactions to increase or decrease the speed of reaction, without undergoing any change in themselves.
A promoter is a substance which increases the efficiency of a catalyst.
Hence, the answer is the catalyst.