to test the acidic / base nature of a solution with help of pH paper
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when dipping the pH paper we get various colours and according to pH chart we can know if it's acidic or basic
if the value is below 7 then acidic above 7 basic 7 neutral
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pH paper helps to determine the nature of substance. If the pH is below 7, it will be acidic and if it is 7,it will be neutral, if it is above 7, it will be base
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