Question

What is Olfactory Indicator????????​

Answer 1

Explanation:

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

These type of indicators are used in laboratories to check whether a given solution is a basic or an acidic solution by a process known as olfactory titration.(◠‿◕)

Answer 2

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An indicator which change in smell put into acid and base are called olfactory indicator.

e.g. Onion and Vanilla ,clove etc....