Question

define olfactory indicators​

Answer 1

Answer:

those substance whose smell (odour) change in acidic or basis solution are called olfactory indicators

example onion and vanilla

Answer 2

Answer:

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.