in an acidic medium turmeric paper
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In an acidic medium the turmeric paper remains to be yellow in colour. In basic medium it turns to reddish brown. In neutral medium it remains to be yellow.
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Indicators, such as turmeric, work by changing their colour with changes in pH. There are many different pH indicators and each indicator changes colour at a particular pH level. ... If turmeric is exposed to neutral or acidic substances (those with a pH of less than 7.4) it will retain its yellow colouration.
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