Question

what happens when venila essence is added to NaoH

Answer 1

Dear Student

This are the indicators which are used for testing a solution whether acidic or basic. It sometimes depend upon the smell and this process is called olfactory titration.

Vanilla extract has a characteristic pleasant smell.If a basic solution like sodium hydroxide solution is added to vanilla extract,then we cannot detect the characteristic smell of vanilla extract.An acidic solution like hydrochloric acid does not destroy the smell of vanilla extract.This can be used as test for acids and bases.