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What do you observe when you drop a few drops of acetic acid to a test tube containing : (a) Phenolphthalein (b) Universal indicator (c) distilled water (d) sodium hydrogen carbonate |
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Answer» (i) Acetic acid will remain colourless in phenolphthalein. (ii) Acetic acid will dissolve in distilled water forming a clear solution. (iii) Universal indicator gives orange colour with acetic acid. (iv) Sodium hydrogen carbonate will give brisk effervescence due to the formation of CO2 gas. |
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