Question

Write down the reaction of
Phenolphtalein with
acid. for 1 mark question ​

Answer 1

Answer:

The acid changes into colourless

Explanation:

Answer 2

Answer:

HERE IS UR ANS..

Phenolphthalein is a chemical compound with the formula C20H14O4 and is often written as "HIn" or "phph" in shorthand notation. 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.

This is not 1 mark ans...but i hope query is solved...