Q. Which is universally correct for catalyst?
A) A catalyst remains unchanged chemically at the end of chemical reaction
B) A catalyst takes part in a chemical reaction
C) All kinds of catalysts undergo catalytic poisoning
D) A catalyst physically changes at the end of reaction
Explanation
(a)
The physical state changes but chemically it remains same.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.