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