Reena took four beakers labelled A,B,C and D filled with different substances.She dipped pH paper into the beakers one by one. The Teacher asked her to identify the substance of beaker B by the diagram given below?
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i didn't understand your question but i think this might help you if the PH paper turns red -- the substance is acidic in nature if PH paper turns blue--the substance is basic in nature if there is not change is PH paper or if it is green --the substance is neutral in nature
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