Question

what do you observe when you add a few drops of acetic acid to test tube containing : (i) phenolphthalein

Answer 1

phenolphthalein remains colourless, as acetic shows a change in colour in basic substances

Answer 2

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.