Discussion
Match each catalyst component with its role.
List I
A. Active component
B. Support
C. Promoter
D. Poison
List II
1. improves activity or selectivity without acting alone
2. the material on which the reaction occurs
3. binds to active sites and destroys activity
4. provides surface area and mechanical strength
Answer: A
A commercial catalyst is a formulated material rather than a single substance, and each component earns its place. The support usually accounts for most of the mass and almost all of the area. Each component earns its place.
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