Urea is a widely used nitrogenous fertilizer. Its nitrogen content by mass is approximately:

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Urea, CO(NH₂)₂, molar mass = 60 g/mol. Mass of N = 2×14 = 28 g. Percentage N = (28/60) × 100 ≈ 46.67%, commonly rounded to 46%. It has the highest nitrogen content among solid fertilizers, making it economical. DAP (diammonium phosphate) has 18% N and 46% P₂O₅. Ammonium nitrate has 33% N. Urea is converted to ammonia and carbon dioxide by soil urease enzyme.

Urea is a widely used nitrogenous fertilizer. Its nitrogen content by mass is approximately: MCQ with Answer and Explanation

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