JAMB Chemistry 2005 Question 3

Question 3

Acids, Bases and Salts

Phenolphthalein in acidic solution is

  1. A.red
  2. B.orange
  3. C.colourless
  4. D.yellow
Show the answer and explanation

Answer: C (colourless)

Explanation

Phenolphthalein is colourless in acidic and neutral solutions and turns pink in alkaline solutions.