Home PYQs UPPSC UPPSC MCQs Prelims 2007 (GS Paper I)

Question

The reason for stinging smell near the urinals is:

  1. Sulphur dioxide
  2. Chlorine
  3. Ammonia
  4. Urea

Answer:

Option C: Ammonia

Detailed Solution:

The correct answer is “Ammonia”.

Hydrolysis of urea present in human urine generates odor in urinals. The enzyme urease hydrolyses urea into ammonia and carbamate.