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  • AIEEE Chemistry - Physical, Organic & Biochemistry
  • The colour of Phenolphthalein in alkaline medium is
Multiple choice

The colour of Phenolphthalein in alkaline medium is

  1. colourless

  2. pink

  3. red

  4. yellow

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Phenolphthalein turns pink in alkaline (basic) medium. In acidic medium it remains colorless. Red and yellow are not the correct colors for phenolphthalein in basic conditions.

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