Solution:
On adding phenolphthalein indicators to a colourless solution, no change is observed. The nature of the solution is either acidic or neutral.Phenolphthalein is frequently used as an indicator in acid-base titrations. The phenolphthalein indicator's colour will no longer change with an acidic or neutral solution. Since phenolphthalein is soluble in water, it is frequently dissolved in alcohol for use in experiments. It is a weak acid that can lose ions in solutions. While the ion of phenolphthalein is purple, the molecule of phenolphthalein is colourless. Phenolphthalein gives pink colour to the basic solution.
