define chemical reaction Share with your friends Share 2 Kirti Gogia answered this Please refer to the following linkhttps://www.meritnation.com/ask-answer/question/what-is-a-chemical-reaction-pls-ans-fast-its-urgent/chemical-reactions-and-equations/5900188 3 View Full Answer Megha Mishra answered this a chemical reaction is in which new compounds are form and they cannot be reversible -1