Question

A cloth strip dipped in onion juice is used for testing a liquid X Theliquid X changes its odour, which type of an indicator is onion juice?
The liquid ' turns blue litmus red List the observations the liquid Xwill show on reacting with the following
(a) Zinc granules
(b) Solid sodium carbonate
Write the chemical equations for the reactions involved....
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Answer 1

Explanation:

Onion solution is an olfactory indicator.thus it changes its odour.....

liquid X is acidic in nature as it turns blue litmus red..

acid+ metal gives metal salt + H2

Zn + metal gives Zn salt + H2

x + metal carbonate gives carbonate salt + H2o + CO2..

Na2Co3 + X gives carbonate salt of X + H20 + c02

I hope this will help you ...