Question

What is the colour of clove oil in acid and base?

Answer 1

All onion,clove oil and vanilla extract are examples. An olfactory indicator works on the principle that when an acid or base is added to it,then different odour can be detected in bases whereas odour remains same in acids.Certain substances changes odour in acidic or basic medium.

Answer 2

Answer:

In acids it doesn't change it's smell but in bases it's smell vanishes.