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?

You have been provided with three test tubes. One of them contains dis

1.	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?
Answer» Mark A, B, C on the test tubes. Put red litmus in each test tube. If there is no change in test tube it is acid, if litmus changes to blue it is an acid, if there is little change in litmus it is distilled water.