You are provided with three test tubes A, B and C as shown in figure with different liquids

cbse
acids-bases-salts
cbse-class-7-science

#1

You are provided with three test tubes A, B and C as shown in figure with different liquids. What will you observe when you put

  1. a piece of blue litmus paper in each test tube?
  2. a piece of red litmus paper in each test tube?
  3. a few drops of phenolphthalein solution to each test tube?
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Answer:
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