S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which of the following indicators is used in acid-base titration involving strong acid and strong base?

  • (A) Phenolphthalein
  • (B) Methyl orange
  • (C) Litmus
  • (D) Congo red
  • Correct Answer - Option(A)
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Explanation by: Shyam Dubey
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.

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