You have been provided with three test tubes . One of them contains distilled water
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Explanation:
Take three small pieces of red litmus paper. Put one drop each of the given solutions on these litmus papers.
The liquid which turns red litmus into blue is a basic solution. Divide the blue litmus paper so formed into two parts.
Put one drop each of the other two liquids separately on these two pieces of litmus paper; The solution which turns blue litmus paper red is acidic solution.
The solution which does not affect the colour of litmus paper is water.
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