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प्रश्न
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?
लघु उत्तर
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उत्तर
A neutral substance has a pH value of 7. When we add a few drops of a universal indicator to a test tube of water (which is a neutral substance), we get a green colour, indicating the neutrality of water.
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