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प्रश्न
You have been provided with three test tubes. One of them contains distilled water and the other two have 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?
उत्तर
- Put red litmus paper in each test tube, turning as needed. A basic solution is one that converts red litmus into blue. The blue litmus paper created can be used to test the acidic solution.
- Put the blue litmus paper in the remaining two test tubes, one at a time. An acidic solution will cause blue litmus paper to turn red.
- Distilled water is the solution that does not affect litmus paper and is considered neutral.
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