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»

Three test tube A, B, C

(i)  A contains distilled water

(ii)  B contains acidic & C contains basic solution. On adding red litmus paper

→  no change

→  no change

 Turn to blue



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