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The classification of chemicals that are sensitive to changes in pH are known as indicators. There are many long chemical names for many but something as common as purple grape juice will show a color change in the presence of changing pH.
Red, showing that the solution is acidic.
It would remain red, red litmus paper only reacts to blue in the presence of a base. Lemon juice is acidic and thus wouldn't turn the paper a color. If blue litmus paper was used in the lemon juice it would turn red. Consequently dipping blue litmus paper in a base won't change the color because it does not react with bases, only acids.
it turns acidic or very basic
As orange juice being an acidic solution, it turns blue litmus into red.
Because the pH of the juice is changed.
Gold grape juice is orange.
Apple juice is slightly acidic and therefore red litmus will not change color.
Litmus paper turn to red color.
Otgfcch
Blue litmus paper would turn red in orange juice.
The classification of chemicals that are sensitive to changes in pH are known as indicators. There are many long chemical names for many but something as common as purple grape juice will show a color change in the presence of changing pH.
Red, due to the citric acid.
Apple juice is a type of citric acid so it would turn blue litmus paper redish.
blue
Grape Juice from Concentrate (Filtered Water, Grape Juice Concentrate), Grape Juice, Maltodextrin (Dietary Fiber), Ascorbic Acid (Vitamin C) - Taken from Welch's 100% Grape Juice (with added fibre)
The color of the grape, as well as the taste. White grape juice is a smoother taste, something more akin to what you'd expect from a mango not a grape, and while red grape juice is sharper and more pow to me, it seems slightly sweeter. This is, of course, only my taste buds.