Question

what do you observe when you dropped few drops of acetic acid in a test tube containing 1) phenopthaline 2)disteled water 3) universal indicator 4) sodium hydrogen Carbonate.

Answer 1

In phenopthaline there is no change

In universal indicator it turns to red

Sodium hydrogen Carbonate we can see that formation of salt.

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.