A student adds drops of lemon juice to a red cabbage pigment. What color is the solution most likely to be?
Here is the pigment table for red cabbage once again:
PH 1-2 Pink/Acid
PH 3-4 Dark Red/Acid
PH 5-6 Violet/Acid
PH 7-8 Blue/Neutral-Base
PH 9-10 Blue-Green/Base
PH 11-12 Green-Yellow/Base

Question

Quizplus · Accepted Answer

Pink. Lemon juice would most likely change the color of the pigment to pink.
Key Takeaway: A major component of lemon juice is citrate, a strong acid. After the addition of this acid to the pigment, it is most likely to reach a pH of about 2, which would result in the pigment turning pink.

A Student Adds Drops of Lemon Juice to a Red