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Answer 1

Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed. ... Enzymes are naturally occurring catalysts responsible for many essential biochemical reactions.

Answer 2

Answer:

A tranquilizer refers to a drug which is designed for the treatment of anxiety, fear, tension, agitation, and disturbances of the mind, specifically to reduce states of anxiety and tension. Tranquilizer, as a term, was first used by F.F.