Question

what is olfactory indicator and give example...​

Answer 1

An Olfactory indicator is a substance whose smell varies depending on whether it is mixed with an acidic or basic solution. Olfactory indicators can be used in the laboratory to test whether a solution is a base or an acid, a process called olfactory titration. Onion , clove oil and vanilla extract are examples.

Answer 2

Answer:

• Onion is an olfactory indicator.
• Olfactory indicators are indicators that change their smell on reacting with acids or bases accordingly