(a) The phenomenon in which a small quantity of a substance known as catalyst alters the rate of a reaction is known as catalysis. (b) The substance which alter the rate of a reaction and themselves remain chemically and quantitatively unchanged after the reaction are known as catalysts.
Answers
Amol patil
(a) The phenomenon in which a small quantity of a substance known as catalyst alters the rate of a reaction is known as catalysis.
(b) The substance which alter the rate of a reaction and themselves remain chemically and quantitatively unchanged after the reaction are known as catalysts.