Question

what is olfactory indicators????​

Answer 1

there are some indicators whose presence of smell enable us to judge about acid and bases

ex- vanilla onion strips etc.

Answer 2

Olfactory Indicators are those substances which give out different smell when we dip in Acid or Base. It is used to determine whether the given substance is an Acid or a Base.

For Ex - Onion, Cumin Seeds.

As, When we dip Onion in Acid then there is a smell coming but no smell will come if we dip it in a base.

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