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Helga [31]
4 years ago
12

Which of the following is an acid-base indicator? A) hydrochloric acid B)sodium hydroxide C)water D)phenolphthalein

Chemistry
2 answers:
wel4 years ago
6 0

Answer:

D)phenolphthalein

Explanation:

Phenolphthalein is an acid base indicator. It is used in acid base titrations. It is colorless in acidic solution and turns pink in basic solutions. Between 8-10 pH range phenolphthalein is pink and at pH below 8 it is colorless.  

Hydrochloric acid is an acid, sodium hydroxide is a base and water is neutral.  

KATRIN_1 [288]4 years ago
4 0
D the answer is phenolphthalein
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