P2O5 content in triple superphosphate is about ______________ percent?
Correct answer: B. 42-50
- A. 15-20
- B. 42-50
- C. 85-90
- D. 70-75
Explanation
Triple superphosphate is a concentrated phosphate fertiliser containing roughly 42 to 50% available P2O5. Ordinary superphosphate contains only about 15 to 20% P2O5, which is the likely distractor.
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