Which of the following statements regarding the use of indicators in redox titrations are correct? — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Statement C is false; the endpoint of $KMnO_4$ in an acidic medium is marked by the first permanent pale pink color indicating unreacted $MnO_4^-$. A brown precipitate ($MnO_2$) would only form if the medium was neutral or faintly basic. Statements A, B, and D correctly describe the principles of self and external indicators in volumetric analysis.