What are olfactory indicator?how they work?
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Olfactory indicator is type of indicator by varies in their smells we can observe that the mixture are acidic or basic.
It is work on mixing with that substance.
It is work on mixing with that substance.
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An Olfactory indicator is a substance whose smell varies depending on whether it is mixed with an acidic or basic solution. Olfactory indicators can be used in the laboratory to test whether a solution is a base or an acid, a process called olfactory titration.
Simply put, olfactory indicators are substances which have a different odour in acid and base solutions. For eg: Vanilla extract has a characteristic pleasant smell, onion and clove oil, etc.
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