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 teat tubes?
Answers
Answer:
Step 1: Let us mark the three test tubes as A, B, and C.
Step 2: A drop of the solution in test tube A is put on the red litmus paper. Same is repeated with solutions B and C. If either of them changes colour to blue, then it is basic. Therefore, out of three, one is eliminated.
Step 3: Out of the remaining two, any one can be acidic or neutral. Now a drop of basic solution is mixed with a drop of each of the remaining two solutions separately and then a drop of each solution is put on the red litmus paper.
If the colour of red litmus turns blue, then that solution is neutral and if there is no change in colour, then that solution is acidic.
This is because acidic and basic solutions neutralise each other. Hence, we can distinguish between the three types of solutions.
Answer:
put the red litmus one by one in all...the one who will convert red to blue is acidic...one which converts blue to red is acidic...and one which have has no effect on it is distilled