Question

What is universal indicator and olfactory Indicator give example

Answer 1

Answer:

A universal indicator can be described as a pH indicator. A universal indicator shows pH changes over a wide pH range. For example, a litmus paper

An olfactory indicator can be described as a substance whose smell changes in an acidic or basic solution. For e.g the smell of vanilla will not be destroyed by an acid indicator but it will be destroyed by a basic indicator.

Answer 2

Answer:

example of olfactory indicator are: vanilla extract , clove oil and onion

Explanation: olfactory indicator are indicators whose smell varies depending on whether it is mixed with acid or a base..