Question

What is the colour of phenolphthalein in acidic solution and basic solution?? ​

Answer 1

Answer:

The colour of phenolphthalein in :-

Acidic Solution :- $\huge\mathbf\orange{Colourless}$

Basic Solution :- $\huge\mathbf\pink{Pink}$

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Answer 2

Answer:

acid colourless and bases pink

Explanation:

Phenolphthalein is an weak acid which reacts only with strong bases and changes colour.

Phenolphthalein is originally colourless. Since, it doesn't react with acid, it is colourless in acid. And as it reacts with strong bases, like NaOH, KOH etc, it becomes pink.