Question

what are olfactory indicators name two olfactory indicators

Answer 1

Answer:

Answer: Those substances whose smell (or odour) changes in acidic or basic solutions are called olfactory indicators. Onion and vanilla extract are olfactory indicators.

Answer 2

Answer:

Those substances whichchanges smell according to the medium of "acidity and alkalinity". Solution ofSodium hydroxide when added to the substance like onion or vanilla, which are the olfactory indicator, the smell ofolfactory indicator is not indicated. Therefore, alkaline solution changes the smell.