Question

You have been provided with 3 test tubes. One of them contains distilled water and the other two contain an acid solution and a basic solution respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?

Answer 1

Answer:

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Explanation:

Add few drops of solution from all three test tubes on the red litmus paper separately. The solution which turns red litmus to blue contains basic solution. Use this blue litmus paper to test the solutions in other two test tubes. The solution from the test tube which turns blue litmus paper to red will be the acidic solution and solution of the test tube which do not change either red or blue litmus paper contain water.

Answer 2

Answer:

By following steps

Explanation:

First dip the red litmus in any solution and do it with other solution till the time you see a colour change in the litmus paper to blue, as soon as you get blue colour mark that test tube as solution of basic solution as basis turn red litmus blue and keep that test tude aside. now with red blue colour that you have got from the basic solution dip the litmus paper in the test tubes till the time you see the colour change to red again as acid changes the colour blue litmus red, when you get the red colour mark that test tube of acidic solution and hence you are left with only one test tube and that last tube is neutral

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