Indicators and their Ranges

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Solution Color

Base

Acid

Red cabbage water Purple Green Red/Pink
Blackberry juice Purple Blue Red
Red Onion Pink Green Pink
Tumeric powder xxx xxx Does not change
P.T.S. Yellow Pink Pink


Acids are sour substances that turn pink or red when mixed with cabbage water.

Alkalis (bases) have a bitter taste and they feel slippery or soapy. When bases are mixed with cabbage water they turn blue or green.



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