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Take cold water, normal water and hot water in three test tubes. Drop a small size of magnesium ribbon in each test tube and add one drop of phenolphthalein in each test tube. In which test tube will pink colour appear sharply? |
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Answer» Take cold water, normal water and hot water in three test tubes. Drop a small size of magnesium ribbon in each test tube and add one drop of phenolphthalein in each test tube. In which test tube will pink colour appear sharply? |
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