Question

_______ indicator turns pink in a basic medium and remains colourless in an acidic medium.​

Answer 1

Phenolphthalein indicator turns pink in a basic medium and remains colourless in an acidic medium.

Well, it is a synthetic type of indicator made through chemicals in the laboratories and is usually used to check the presence of base in a solution as mentioned in the question already.

Thanks! $\!$

Answer 2

Answer:

Phenolphthalein indicator turns pink in a basic medium and remains colourless in an acidic medium.

Explanation: