Chapter 2: Acids,Bases, and Salts

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Acids,Bases, and Salts

Question:

Blue litmus paper is dipped in a solution. It remains blue. What is the nature of the solution? Explain.

Answer:

The litmus is a natural indicator that is extracted from lichens. The lichens are organism which arises from cyanobacteria or algae. It is purple-colored which is mixed with water to form an indicator solution.  It is also available in the form of strips, known as litmus paper. The basic solution converts red litmus blue while the acidic solution converts blue litmus red.

In the given question, the solution shows no change in blue litmus paper. This shows that the given solution is either basic or neutral.


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