Question

sodium hydroxide turns phenolphthalein solution to

a. pink
b. yellow
c.colourless
d. orange​

Answer 1

Answer:

a) Pink is your answer...

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Answer 2

Answer:

In alkaline solution, phenolphthalein gives pink color as it works as an indicator which shows its endpoint when it reacts with hydroxide ions of the base. It is a commonly used indicator in acid-base titrations. In acidic solution when acid is added, phenolphthalein gives a colorless solution.Option A is correct.

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