Question

Which of the following will decrease the rate of reaction?

(a) Catalytic poison

(b) Positive catalyst

(c) Negative catalyst

(d) Catalytic promoters

I had been asked this question in unit test.

My question is based upon Catalysts in chapter Surface Chemistry of Engineering Chemistry II

Answer 1

Right option is (a) Catalytic poison

The best I can explain: Catalytic poisons are the once which are used to slow down the reaction inorder to avoid explosion when the temperature or pressure increase the critical value. Hence catalytic poisons are used such as aluminium oxide.