Question

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What do you mean by Olfactory Indicators ?​

Answer 1

Answer:

Olfactory indicators are those substances whose smell varies depending on whether it is mixed with an acidic or basic solution.

Explanation:

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Answer 2

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Those substances whose smell (or odour) changes in acidic or basic solution are called olfactory indicators. Onion and vanilla extract are two examples of olfactory indicators.

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