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 ?
Answers
Explanation:
1. I will dip the litmus in all 3 tubes, when red colour becomes blue in a particular test tube. then that test tube is Basic in Nature.
2. Then i will keep that basic test tube away.
3. Now i will place that blue litmus paper in rest two tubes. When the blue colour becomes red again in a particular test tube. then that test tube is acidic in nature.
4. And hence the rest last one will be Distilled Water.
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Answer:
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Explanation:
(i) Put the red litmus paper in all the test tubes, turn by turn. The solution which turns red litmus to blue will be a basic solution. The blue litmus paper formed here can now be used to test the acidic solution.
(ii) Put the blue litmus paper obtained above in the remaining two test-tubes, turn-by-turn. The solution which turns the blue litmus paper to red will be the acidic solution.