Question

There are some substance whose odour changes in acidic or basic media is

Answer 1

Heya,

These substances are called olfactory indicators.

For example, onion, clove and vanilla extract.

#Hope it helps

#MarkasBrainliest!

Answer 2

Answer:

Olfactory indicator

Explanation:

Olfactory indicator 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.