Question

Hiw does phenolphthalein turn pink in colour? Explain
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Answer 1

Answer:

Phenolphthalein, an acid-base indicator used to test the pH of a solution, turns pink due to the presence of a weak base. The indicator itself is a weak, colorless acid that forms pink anions when it dissolves in water. Although the anions are pink, the solution remains colorless in the presence of an acid.