2017 · Q61
The foul smell of urine of a healthy man having healthy food, when spilled on floor, is mainly due to the bacteria decomposition of
General KnowledgeBiology
- Aurea into sulphur dioxide
- Bsugar into carbon dioxide
- Clipids into methane
- Durea into ammonia
Explanation
Fresh urine contains urea ((NH₂)₂CO), which bacterial urease in the urinary tract and environment decomposes into ammonia and carbon dioxide. It is the released ammonia that gives stale urine its characteristic pungent smell. Urea does not break down into sulphur dioxide, sugar into carbon dioxide, or lipids into methane in this context. The gas responsible is ammonia.