Question

What are the characteristics of olfactory indicators? How does it differ from natural and synthetic indicators?

Answer 1

Hi,

Meaning:

An olfactory indicator works on the principle that when an acid or base is added, then its characteristic smell can be detected.

(i) Onion has a characteristic smell. When a base (like NaOH) is added to a cloth strip treated with onion extract—then the smell is destroyed.

Differenciate:

Substances which change their smell when mixed with acid or base are known as olfactory indicators. For example onion, vanilla, clove, etc. Synthetic Indicator: Indicators that are synthesized in laboratory are known as synthetic indicators. For example; phenolphthalein, methyl orange, etc.

Please mark as brainliest!

~Azzy

Answer 2

Meaning:

An olfactory indicator works on the principle that when an acid or base is added, then its characteristic smell can be detected.

(i) Onion has a characteristic smell. When a base (like NaOH) is added to a cloth strip treated with onion extract—then the smell is destroyed.

Differenciate:

Substances which change their smell when mixed with acid or base are known as olfactory indicators. For example onion, vanilla, clove, etc. Synthetic Indicator: Indicators that are synthesized in laboratory are known as synthetic indicators. For example; phenolphthalein, methyl orange, etc.

Hope helpful