Science, asked by cute4752, 6 months ago

Does the pink colour of phenolphthalein reappear?​

Answers

Answered by Anonymous
4

Answer:

Ok sure mate

Explanation:

Phenolphthalein is basic indicator which remain colorless in acidic and neutral solution and turns pink or magenta in basic solution. ... (iii) If few drops of NaOH is added again to the same solution, the solution become basic and the pink color of the phenolphthalein reappears.

Answered by anushkasingh5nov2006
1

ANSWER -:

Explanation: Phenolphthalein is basic indicator which remain colorless in acidic and neutral solution and turns pink or magenta in basic solution. ... (iii) If few drops of NaOH is added again to the same solution, the solution become basic and the pink color of the phenolphthalein reappears.

Phenolphthalein, an acid-base indicator used to test the pH of a solution, turns pink due to the presence of a weak base. ... Although the anions are pink, the solution remains colorless in the presence of an acid. If the pH of the solution is 8.2 or above, the number of anions increases, causing the solution to turn pink.

Hope it helps u dear..

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