Question

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

Answer 1

when we drop few drops of acetic acid to test tube containing
a. phenolphthalein then no change will take place.
b. when it is dropped in universal indicator then, the colour of universal indicator with shifted towards acetic medium i.e. red or yellow or orange.
c. in distilled water, it is moved to diluted itself.
d. with sodium hydrogen carbonate, it reacts and give sodium acetate, water and it release carbon dioxide.

I hope it will help you

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.