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Get Answers to all your Questions
A cloth strip dipped in onion juice is used for testing a liquid . The liquid
changes its odour. Which type of an indicator is onion juice ? The liquid
turns blue litmus red. List the observations the liquid
will show on reacting with the following :
(a) Zinc granules
(b) Solid sodium carbonate
Write the chemical equations for the reactions involved.
Answers (1)
(a) Zinc granules
Colourless and Odourless gas is evolved with bubbles .
Zinc + Acid → Zinc Salt + H2 ↑
(b) Solid sodium carbonate
Brisk effervescence/ colourless and odourless gas is evolved
Sodium carbonate + Acid Sodium salt of Acid + Water + Carbon dioxide↑
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