Question

which are olfactory indicators?how they change their odour in acidic and basic media?​

Answer 1

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

Answer 2

Olfactory Indicators: Substances which change their smell when mixed with acid or base are known as olfactory indicators. For example onion, vanilla, clove, etc. ... It does not change its smell with acid. Vanilla: The smell of vanilla vanishes with base, but it's smell does not vanishes with an acid.

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