Question

What do you mean by Olfactory indicators ?​

Answer 1

Answer:

Those substances whose smell (or odour) changes in acidic or basic solution are called olfactory indicators. Onion and vanilla extract are two examples of olfactory indicators.

Answer 2

Answer:

Hi,

Explanation:

We know that 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.