NEET levelSingle correct optionDifficulty 1 of 3sc062
A substance that reduces or destroys the activity of a catalyst is called a
Apromoter
Bcoenzyme
Ccatalytic poison
Dautocatalyst
Answer: C
Catalytic poisons such as AsX2OX3 (for platinum) or HX2S (for iron) are adsorbed strongly on the active centres and reduce activity. A promoter does the opposite.