Question

What chemicals smell like rotten eggs?

Answer 1

1. The compound is a flammable gas and is colourless in nature that smells like rotten eggs.
2. Hydrogen sulphide (${\mathbf{H}}_{\mathbf{2}}\mathbf{S}$) is a gas that smells exactly like rotten gas at a lower concentration in the air.
3. On the other hand at higher concentration, it has a sweet smell.
4. At a higher concentration, the people exposed to Hydrogen sulphide lose their ability to smell which is known as olfactory fatigue.
5. It is used in the production of Sulphur and also as a byproduct in many industrial activities.