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

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..