Question : Nitrogen in water is commonly found in the form of:
Option 1: Nitrous oxide
Option 2: Nitrate
Option 3: Nitric oxide
Option 4: Nitrite
Correct Answer: Nitrate
Solution : The correct option is Nitrate.
Water primarily contains nitrogen in the form of its oxides. Nitrate (NO 3 ) is the nitrogen oxide that is most frequently discovered in water. Nitrate easily penetrates soils and enters groundwater, where concentrations can be significantly higher than in surface waters.
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