Question

Phenolphthalein în acid gives
--------- colour​

Answer 1

Answer:

Phenolphthalein in acid gives no colour.

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Answer 2

Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.

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