CHEMISTRY
JAMB 2005 - Question 3
Chemistry 2005 JAMB Past Questions - Question 3: Phenolphthalein in acidic solution is
Choose the correct answers from the options given.
A:
B:
C:
D:
Correct Answer
C
Explanation
Phenolphthalein is a pH indicator that is often used in acid-base titrations. Its color changes depending on the pH of the solution. In acidic solutions (pH less than 7), phenolphthalein is colorless. As the pH increases and the solution becomes more basic, phenolphthalein turns pink or red. Therefore, in acidic solution, the color of phenolphthalein is colorless, not red.
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