Question

Which solution can turn phenolphthalein pink?

Answer 1

Answer:

Phenolphthalein is naturally colorless but turns pink in alkaline solutions. The compound remains colorless throughout the range of acidic pH levels but begins to turn pink at a pH level of 8.2 and continues to a bright magenta at pH 10 and above.

Answer 2

Answer:

strong bases like NaOH and KOh turn Phenolphthalein to pink.

Explanation:

• Phenolphthalein is a laboratory-made indicator(synthetic) used in acid-base titrations.
• Phenolphthalein is a universal indicator.
• Phenolphthalein is used to know the Ph of the solution medium.

• It turns pink when the base is used and it indicates a basic solution because phenolphthalein ions are formed.

• It turns colorless when an acidic solution is used.

• It turns colorless when a neutral solution is added.