0
Acids turn red/pink when red cabbage indicator is added.
Alkali/bases turn blue/green.
Neutrals turn purple.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What happen when phenopthelein is added to acid?
It will be clear in color.
What is the color of the indicator when an excess of hydrochloric acid has been added?
Red
Why there is no colour change when phenolphthalein is added to the oxalic acid?
In a weak acid solution phenophthalein has the "lactone" form which hasn't color.
When copper oxide is added to nitric acid what color is the solution at the end?
Bluish green
Why does red cabbage powder and water turn purple when citric acid is added?
Red cabbage powder is a natural acid-base indicator. It contains a compound that changes color when exposed to varying concentrations of hydrogen and hydroxide ions. When citric acid and water are added to the powder, the hydrogen ions from the acid interact with a chemical in the red cabbage powder, giving it a purple color.
What is the color of phenoplhthalein if sulfuric acid is added?
The color is orange to red.
Is tomato juice acid?
Yes tomato juice is acid but not an indacator here is an idea if you have a question about vegtables go to yahoo answers
What happen when phenopthelein is added to acid?
It will be clear in color.
What is in red cabbage?
it is a controll when a acid or a base is added it changes color
What is the color of the indicator when an excess of hydrochloric acid has been added?
Red
What color does blue litmus paper into when added to an acid?
Red color in acidic solutions and blue color in basic solutions.
What color does blue litmus paper turn when acid is added to it?
Red color in acidic solutions and blue color in basic solutions.
Why there is no colour change when phenolphthalein is added to the oxalic acid?
In a weak acid solution phenophthalein has the "lactone" form which hasn't color.
What colour does acid change to when red litmus paper is added?
the same color red
When copper oxide is added to nitric acid what color is the solution at the end?
Bluish green
Why does grape juice turn color when acid or base is added?
Because the pH of the juice is changed.
What color does blue food dye turn when hydrochloric acid is added?
A lighter shade of blue
