Question

Name the indicator which gives pink color with base and remains colorless in acid

Answer 1

Phenolphthalein is an indicator used to determine pH of various solution. It's solution is prepared by dissolving it in alcohol. Its solution is colourless.When few drops of phenolphthalein is added to a basic solution it changes into a Deep pink colour. It remains colourless in acidic and neutral solution.

Answer 2

Phenolphetheline is used as indicator which give pink colour with Base and colourless in acid.