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प्रश्न
Name the acid-base indicator extracted from lichen.
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उत्तर
Litmus solution
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संबंधित प्रश्न
You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?
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