Question

you identify the contents of each test tube?
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​

Answer 1

At first let's rename them as 1, 2 and 3.

Test Tube 1 contains Distilled Water, Litmus paper will have no changes if its dip in it.

Test Tube 2 contains Acidic Solution, Red litmus stays red and Blue litmus Turns red, so if the litmus will be red after dipping in Test Tube 2 it will be an Acidic Solution.

Test Tube 3 contains Acidic Solution, red litmus paper turns blue after dipping in Test Tube 2 it will be an Acidic Solution.