Question

please tell me the answer​

Answer 1

Answer:

c one will be yhe answer

Answer 2

Answer:

(c) Either acidic or neutral

Explanation:

The reason why it is colourless in acidic or neutral solution is that phenolphthalein molecules are colourless while its ions are pink. Phenolphthalein follows Le chatelier's principle in case of base and turns pink.

But it doesn't ionize when acid or neutral solution is added, hence it remains colourless.