Question

what is catalyst answer in 3 or 4 lines with example​

Answer 1

Explanation:

In chemistry, a catalyst is a substance that causes a chemical reaction to happen in a different way than it would happen without that catalyst - for example, a catalyst could cause a reaction to happen at a faster rate, or at a lower temperature, than would be possible without the catalyst.

When the term catalyst is used outside of chemistry, it refers to something that causes a change or reaction to take place.