The conversation between human and AI assistant.
Why is the colour of KMnO4 purple before the titration and after the end point it is pink?
Why is KMnO4 used for titration?
KMnO4 is used for titration because it is a strong oxidizing agent and reacts readily with most reducing agents. It is also a self-indicating agent which means it changes color during the titration indicating the end point.