Which of the following can be observed when phenolphthalein is added to a sulfuric acid solution?
A) The solution remains colorless.
B) The solution turns pink.
C) The solution turns blue.
D) The solution turns green.

Question

Quizplus · Accepted Answer

Phenolphthalein is an acid-base indicator that changes color in the presence of a basic solution. Sulfuric acid is a strong acid with a very low pH, so it would not cause phenolphthalein to change color. Therefore, the solution would remain colorless.

Which of the Following Can Be Observed When Phenolphthalein Is