Question

MCQ : Phenolphthalein is a suitable indicator for titration between

  • Acids Bases and Salts
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Answer

Question

Phenolphthalein is a suitable indicator for titration between

  1. weak acid and weak base
  2. weak base-strong acid
  3. strong acid-strong base
  4. both strong acid-strong base and weak acid-strong base

Answer

both strong acid-strong base and weak acid-strong base

Explanation

Phenolphthalein is a suitable indicator for titration between a weak acid and a strong base or a weak base and a strong acid. It changes colour in the pH range of 8.2-10.0, which is suitable for these types of titrations. It is not suitable for titrations between strong acids and strong bases.

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