UPPCLE AE 2019
⭕ A. Rotten eggs
⭕ B. Rotten cabbage
⭕ C. Fish
⭕ D. Ammonia
📚 Explanation:
Hydrogen sulphide (H₂S) is a colorless, toxic gas known for its distinct foul smell.
The strong smell of H₂S makes it easily identifiable even at low concentrations. It is commonly produced in sewage treatment plants, petroleum refineries, and from decaying organic matter.
Hydrogen sulphide (H₂S) is a colorless, toxic gas known for its distinct foul smell.
✔ It smells like rotten eggs.
The strong smell of H₂S makes it easily identifiable even at low concentrations. It is commonly produced in sewage treatment plants, petroleum refineries, and from decaying organic matter.
👉 Therefore, the correct answer is: A. Rotten eggs
Key Points on Hydrogen Sulphide (H₂S):
- Odour: Rotten eggs.
- Toxic Gas: Can be dangerous at high concentrations.
- Sources: Sewage, petroleum refining, volcanic gases.
- Effects: Eye irritation, respiratory distress, unconsciousness at high levels.
