Q. The colour of Phenolphthalein in acid
Solution:
- Phenolphthalein is often used as an indicator in acid-base titrations. For this application, it turns colourless in acidic solutions and pink in basic solutions.
- It belongs to a class of dyes known as phthalein dyes.
- Phenolphthalein is slightly soluble in water and usually is dissolved in alcohols for use in experiments.
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