what do you observe when you drop a few drops of acetic acid to test tubes containing
(a) phenolphthalein
(b) distilled water
(c) universal indicator
(d) sodium hydrogen carbonate powder
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(A) It will remain colourless solution
(B) It will dissolve in distilled water to form a clear solution.
(C) universal indicator will give orange colour with acetic acid.
(D) sodium hydrogen carbonate will give brisk effervescence due to the formation of CO2 gas in it.
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Answer:
When we add few drops of acetic acid to a test tube containing are as :
a ) . Phenolphthalein : Acetic acid will remain colourless in phenolphthalein
b ) . Distilled water : Acetic acid will dissolve in distilled water forming a clear solution
c ) . Universal indicator : It will give orange colour with acetic acid.
d ) . Sodium hydrogen carbonate : It will give brisk effervescence due to the
formation of CO₂ gas.
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