Question

Which of the following is not true for a promoter?

• A. a substance added to a solid catalyst
• B. added to improve catalyst's performance
• C. A promoter never exhibits catalytic effect.
• D. Some promoters interact with active components of catalysts

Answer 1

The correct option is C A promoter never exhibits catalytic effect.

Promoter, a substance added to a solid catalyst to improve its performance in a chemical reaction. By itself, the promoter has little or no catalytic effect. Some promoters interact with active components of catalysts and thereby alter their chemical effect on the catalyzed substance.