Q. Which of the following indicators is used in acid-base titration involving strong acid and strong base?
✅ Correct Answer: (A)
Phenolphthalein
Explanation: Phenolphthalein changes color near pH 7, making it ideal for titrations involving strong acids and bases. Methyl orange is better suited for strong acid–weak base titrations.
Explanation by: Sikhar Chaudhary
Phenolphthalein changes color near pH 7, making it ideal for titrations involving strong acids and bases. Methyl orange is better suited for strong acid–weak base titrations.