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The Compounds that give fruits and vegetables their red color are very sensitive to acidity. As long as they are acidic they stay red, but when they become non-acidic they turn blue. When you saute red cabbage, the acids evaporate off and it can turn blue. All you have to do is add lemon juice or vinegar to bring back the bright red color.

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Q: Why does red cabbage turn blue when boiled?
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Related questions

What colour does alkali turn in cabbage?

Alkalis turn red cabbage juice blue/green/yellow.


Why does red cabbage boiled in water change the water blue add that to baking soda it turns green add vinegar it turns red?

it doesnt If you add the boiled blue water to vinegar it does turn red add it to water mixed with baking soda it turns green. I did it just cut the cabbage into small pices before boiling. It is showing you if it is acid or akalis


Red cabbage in boiled dinner?

no


What happens when a base is added to red cabbage solution?

Base turn red cabbage solution to blue-ish purple


What color does red cabbage juice change to if a base is added?

It will turn either blue or green, both a hue of blue. The reason of this is that Red Cabbage Juice is an indicator, which is used to see wether an object or chemical is an acid or a base. If the object is an acid it will turn a hue of pink, and if it is a base, it will turn a hue of blue. Which is why a base mixed with Red Cabbage Juice will turn green.


What color does distilled water turn when mixed with red cabbage water?

The color will be red.


What color does litmus paper turn when dipped in red cabbage juice?

blue


When adding hydrochloric acid to red cabbage juice what color will it return?

It will turn greenish . The reason of this is that Red Cabbage Juice is an indicator, which is used to see wether an object or chemical is an acid or a base. If the object is an acid it will turn a hue of pink, and if it is a base, it will turn a hue of blue.


What color does an acid turn if red cabage indacator is added?

Acids turn red/pink when red cabbage indicator is added. Alkali/bases turn blue/green. Neutrals turn purple.


What happens if you test the red cabbage juice with alkaline solution?

It will turn a red color indercating that is has got acid in it


When adding household items to red cabbage juice what color will it turn?

Blue/green color


How does red cabbage indicator work?

A red cabbage indicator is a liquid made from mashed up red cabbage which you then put in a liquid to see whether it is acidic or not. If it is acidic the liquid would turn reddy orange and if it was an alkali ( the opposite to acid) it would turn purpley blue. This is if the liquid was clear in the first place.