Question

Phenolphthalein gives pink colour in this type of solution.

Answer 1

Explanation:

எவை அழிந்தால் துன்பம் அழியும்

Answer 2

Answer: 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.