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A student adds a few drops of the universal indicator solution to a dilute solution of sodium hydrogencarbonate taken in a test-tube. Which of the following colour would he observe?(1) blue(2) green(3) mustard(4) yellow |
Answer» A student adds a few drops of the universal indicator solution to a dilute solution of sodium hydrogencarbonate taken in a test-tube. Which of the following colour would he observe?![]() (1) blue (2) green (3) mustard (4) yellow |
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