What is PH value How can show that any metal follow this order
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Litmus paper is probably the most familiar pH paper. It is used to broadly test whether a solution is acidic or basic and comes in 3 types—red, blue, and neutral.
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Explanation:
The pH value can be measured using electrochemical measuring systems, litmus paper, or indicators and colorimeters. The easiest way to take a pH measurement is to use litmus paper or a colorimeter. The advantage of this type of pH measurement is that the pH range is well known and they are easy to apply.
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