Question

UTION C
25.
A cloth strip dipped in onion juice is used for testing a liquid X'. The
liquid 'X' changes its odour. Which type of an indicator is onion juice ?
The liquid X' turns blue litmus red. List the observations the liquid 'X'
will show on reacting with the following:
(a
Jot
Zinc granules
Solid sodium carbonate
Write the chemical equations for the reactions involved.​

Answer 1

Answer:Onion solution is an Olfactory indicator.Thus it changes its odour.

Explanation:LiquidX 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 carbonates salt +h2o + co2

Na2Co3 + X. Gives carbonate salt of x + h20 + co2

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Answer 2

Answer: onion juice is an olfactory indicator as it changes its smell.

Explanation:

It turns red litmus blu so it is an acid..

A. Zn+ acid X gives h2 gas