Which of the following fertilizers, contains 75% nutrients:
Correct answer: A. DAP
- A. DAP
- B. TAP
- C. Urea
- D. NH4NO3
Explanation
DAP typically contains around 18% nitrogen (N) and 46% phosphorus pentoxide (P2O5). Since phosphorus pentoxide (P2O5) is approximately 44.7% phosphorus (P), if we consider the phosphorus content, DAP contains about 21% phosphorus. Therefore, the total nutrient content in DAP is approximately 18% nitrogen + 21% phosphorus = 39%. While this falls short of 75%, it is the closest option among the provided choices.
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Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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