Question

Write the uses of vanilla onion as ind
icator

Answer 1

Answer:

it is an Olfactory indicator .

Olfactory indicators are the substances that change their smell when added to acid or base. These are used in olfactory titrations to determine nature of solutions. All the given examples vanilla, onion and clove can be used as olfactory indicators.

Answer 2

These are the examples of Olfactory indicator..

these substance changes in acidic or basic medium...

The smell if these two indicators can be detected in presense of acid only but not in presense of base..