Question

what are olfactory indicators? give examples.

Answer 1

olfactory indicators are used to detect substances by smell

eg onions

Answer 2

Olfactory indicators is a substance whose smell varies depending on whether it is mixed with an acidic and basic solution.It can be used in the laboratory to test whether the solution is a base or an acid this process is called olfactory indicators.

Onion,Clove oil , vanilla are some example..

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