Question

Original colour of indicator are phenolphthalein

Answer 1

Answer:

Original colour of phenilphthalein is white( colourless.)..

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Answer 2

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.

Explanation:

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