Red cabbage juice can be used as an acid-base indicator. When a solution is highly acidic, the juice turns red. As the acidity d
ecreases and the solution becomes basic, the color changes from red to violet to green to yellow. Red cabbage juice is used as an indicator of some common household products. Which product will turn yellow when cabbage juice is added? A) coffee B) ammonia C) vinegar D) bottled water
Red cabbage juice is an acid-base indicator. It turns red for acidic medium and as the pH increase it turns to violet, green and then yellow.
It means for a basic solution, it would turn yellow. From the given options, coffee and vinegar are acidic. Therefore, they would turn red. Bottled water is neutral. Ammonia is a weak base. It would the indicator yellow.
