Question

What do you observe when you drop few drops of acetic acid to a test tube containing (a) phenolpthalein (b) distilled water (c) universal indicator (d) sodium hydrogen carbonate

Answer 1

a) the solution will remain colourless
b) acetic acid will dissolve in water
c) universal indicator will turn pale orange
d) the reaction will evolve CO2 gas and H2O + CH3COONa

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.