Question

what is catalyst ????????

Answer 1

a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
"chlorine acts as a catalyst promoting the breakdown of ozone"
a person or thing that precipitates an event.
"the prime minister's speech acted as a catalyst for debate"

Answer 2

hi..

a catalyst is a substance that either fastens or slowens the chemical reaction that is being undertaken and it does not effect the reaction. various substances have different catalysts and every catalyst cant help in the slowening or fastening of a reaction and instead can lead to side effects.

hope this helps ! ..