Math, asked by chetan2nahar, 7 hours ago

Class 12 matrics question

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Answered by bandanachoudhary2380

Answer:

Phenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. As an indicator of a solution's pH, phenolphthalein is colourless below pH 8.5 and attains a pink to deep red hue above pH 9.0.

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