slightly acidic, remember most organisms have an optimum pH of 6.6 or so.
Red in acidic solution
Red in acidic solution
It will turn scarlet.
Cabbage juice turns red due to the presence of anthocyanins, which are natural pigments found in red cabbage. These pigments change color based on the pH of their environment; they appear red in acidic conditions and greenish-yellow in alkaline conditions. When the juice is mixed with acidic substances, such as vinegar or lemon juice, it produces a red hue.
As tea ranges from mildly to strongly acidic, the cabbage juice should turn red or pinkish.
Red cabbage juice contains a class of chemical compounds known as anthocyanins. The color of anthocyanin molecules in solution depends on how acidic or basic the solution is. In a strongly acid solution, anthocyanins will appear red. In a neutral solution, anthocyanins appear purple. In weakly basic solutions anthocyanins appear blue, while in strongly basic solutions they will appear green. In extremely basic solutions, the anthocyanins will appear yellow. Because ammonia is a base, spraying ammonia into a glass containing cabbage juice (which contains anthocyanins) will most likely turn green.
When sulfuric acid is added to red cabbage, the pH of the solution decreases due to the acidity of the acid. This results in a color change of the red cabbage indicator. The red cabbage changes color based on the pH of the solution it is in, with acidic solutions turning it red/pink and basic solutions turning it green/blue.
Both of these can be used as an acid-base indicator. The juice from red cabbage will turn different colours over a wide range of pH, from pH 2 (very acidic) to pH 13 (very basic). Red beet will be blue or red depending if it's in acid or base.
Red cabbage juice is a natural pH indicator that changes color based on the acidity or alkalinity of the solution. In vinegar, which is acidic, the cabbage juice turns red or pink. In baking soda, which is alkaline, the cabbage juice turns blue or green. This color change is due to the interaction between the pigment molecules in the cabbage juice and the different pH levels of the solutions.
put small pieces of purple cabbage in hot water and stir it and leave it for 20 min and take only water. if indicator turns substance red it is acidic ,if blue then basic if no change then neutral
It turns blue or green.
Natural indicators like red cabbage juice and turmeric can be used to detect basic solutions. These indicators change color in the presence of bases, turning blue or green for red cabbage juice and yellow for turmeric, indicating the basic nature of the solution.