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What do you observe when you add a few drops of acetic acid to a test-tube containing:

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What do you observe when you add a few drops of acetic acid to a test-tube containing:

(i) Phenolphthalein

(ii) distilled water  

(iii) universal indicator 

(iv) sodium hydrogen carbonate powder.

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(i) No change/ remains colourless 

(ii) No change 

(iii)Turns pink/orange 

(iv) Evolution of colourless gas

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