Question

What do you observe when you drop a few drop off acetic acid to a test tube containing:
A) Phenolphthalein C) distilled water
B) Universal indicator D) sodium hydrogen carbonate

Answer 1

A) No change it will remain colourless

B) No change

C) It will turn to yellow

D) A brisk effervescense of co2 will be observed forming sodium acetate.


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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.