Question

you have been provided with three test tubes.one of them contains distilled water and the other two contains an acidic solution and a basic solution,despe tively.if you are given only red litmus paper ,how will you identify the contents of each test tube,?
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Answer 1

in Basic solution the red litmus will change to blue and in distilled water there will be no change in colour of the litmus paper

Answer 2

Explanation:

If the colour of red litmus does not change then it is acid. If the colour of red litmus changes to blue then it is base. If there is slight change in the colour of red litmus (such as purple) then it is distilled water.