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Question : 34
Total: 36
What do you observe when you drop a few drops of acetic acid to a test-tube containing:
(i) phenolphthalein
(ii) distilled water
(iii) universal indicator
(iv) sodium hydrogen carbonate powder
(i) phenolphthalein
(ii) distilled water
(iii) universal indicator
(iv) sodium hydrogen carbonate powder
Solution:
(i) No colour change
(ii) No change
(iii) Turns pink
(iv) Colourless, odourless gas with brisk effervescence is evolved.
(ii) No change
(iii) Turns pink
(iv) Colourless, odourless gas with brisk effervescence is evolved.
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