Question

what do you observe when you drop a few drops of acetic acid to a test tube containing ; [a] phenolphthalein [b] distilled water [c] universal indicator [d] sodium hydrogen carbonates.

Answer 1

a) The solution will remain colourless
b)Acetic Acid will dissolve in distilled water and the solution will be colourless
c) The solution will turn into red solution because Acetic Acid has pH less than 3
d)Co2 will be evolved and you will get H20 and NaCh3COO

Answer 2

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.