Question

what are the examples of olfactory indicators?
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Answer 1

Answer:

Explanation:

olfactory indicator is a substance whose smell varies depending on whether it is mixed with an acidic or basic solution.

Onion, clove oil and vanilla extract are some of the examples.

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Answer 2

Answer:

there are many examples of olfactory indicators:

Explanation:

some are: vanilla, onion and clove

their smell changes when they react with acids and bases