Testing Apple for Acidity

Testing Apple for Acidity

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Credit: Turtle Rock Scientific/SCIENCE PHOTO LIBRARY

Caption: Testing apple for acidity. Litmus indicator changes its colour depending on the pH. Here a litmus indicator paper strip has changed colour from blue to pink after it was put in contact with a freshly sliced apple. The test shows that apple is acidic.

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Keywords: acid, acidity, apple, ascorbic acid, chemical, chemistry, indicator, litmus, litmus test, paper, ph, ph indicator, strip, test, testing, vitamin c

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