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Chemical Engineering Basics - Engineering

Q1:

Which of the following has rotten eggy smell ?

A Hydrogen sulphide

B Styrene

C Phenol

D Dimethyl amine

ANS:A - Hydrogen sulphide

The substance with a rotten eggy smell is Hydrogen sulphide (H2S). Hydrogen sulfide is a colorless gas that has a characteristic odor resembling that of rotten eggs. It is commonly found in natural gas, volcanic gases, and some industrial processes.