| What do you observe when you drop a few drops of acetic acid to a test-tube containing: |
| (i) phenolphthaiein |
| (ii) distilled water |
| (iii) universal indicator |
| (iv) sodium hydrogen carbonate powder |
Answer:
(i) No colour change (ii) No change (iii) Turns pink (iv) Colourless, odourless gas with brisk effervescence
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