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CBSE Class 10 Science 2016 Term II Delhi Set 1
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Question : 34 of 36
Marks:
+1,
-0
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
Solution:
(i) No colour change(ii) No change(iii) Turns pink(iv) Colourless, odourless gas with brisk effervescence is evolved.
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