What is base Share with your friends Share 0 Tanmay answered this i never know -3 View Full Answer Gargee answered this Hello Jugal!!! : ) Here Is The Answer: A Basic Substance is a substance that is bitter in taste. It is soapy in touch. It changes red litmus paper to blue. It changes china rose indicator to green. It changes turmeric indicator to red. When a base is mixed with an acid, neutralization reaction takes place. Hope It Helps You!!! 2