InterviewSolution
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(a) What is a universal indicator? For what purpose is it used? (b) How does a universal indicator work? (c) Water is a neutral substance. What colour will you get when you add a few drops of universal indicator to a test-tube containing water? |
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Answer» (a) What is a universal indicator? For what purpose is it used? (b) How does a universal indicator work? (c) Water is a neutral substance. What colour will you get when you add a few drops of universal indicator to a test-tube containing water? |
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