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: a) A piece of blue litmus paper in each test tube. b) A piece of red litmus paper in each test tube. c) A few drops of phenolphthalein solution to each test tube.
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Test tube
Effect on blue litmus
Effect on red litmus
Effect on phenolphthalein
A
Changes to red
Remains red
Colourless
B
Remains blue
Changes to blue
Pink colour
C
Remains blue
Remains red
Colourless
Test tube A has an acidic solution. Test tube B has a basic solution. Test tube C has a neutral solution.
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Similar Questions
Q1
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: a) A piece of blue litmus paper in each test tube. b) A piece of red litmus paper in each test tube. c) A few drops of phenolphthalein solution to each test tube.
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Q2
The given figure shows three test tubes A,B, and C with different liquids. What will you observe when you put a few drops of phenolphthalein solution to each test tube?
A
B
C
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Q3
You are provided with three test tubes A, B and C which contain distilled water, acidic solution and basic solution respectively. If you are given blue litmus paper only, how will you identify the contents of each test tube ?
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Q4
You have been provided with three test tubes. One of them contains distilled water and the other two have 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?